can anyone help me with these?

Can Anyone Help Me With These?

Answers

Answer 1

Answer:

Step-by-step explanation:

Distributive property: a*(b + c)  = ab + ac

16)5x²(7 - x²) = 5x²*7 - 5x²*x²

                   =35x² - 5x⁴

17)

10x(4 - 3x) = 10x*4 - 10x*3x

                  = 40x - 30x²

18) 9( y +4) = 9*y + 9*4

                 = 9y + 36

19) 3(4 - x) - 3(2 - x) = 3*4 - 3*x -3*2 - x*(-3)

                                = 12 - 3x - 6  + 3x  {add/subtract like terms}

                                = 12 - 6 - 3x + 3x

                                = 6

20) 6y + 6(y - 4) = 6y + 6*y - 6*4

                          = 6y + 6y - 24

                          = 12y - 24

                         


Related Questions

Cecelia's monthly mortgage payment is $1,432.26. She calculated the annual property tax on her $300,000 home and determined that it was $6000. What is Cecelia's total monthly payment for the mortgage and property tax? a. $1882.26 b- $1932.26 c- $2032.26 d- $1982.26

Answers

Answer:

You provided no correct answer

Step-by-step explanation:

The way to correctly solve this problem is by ignoring the 300,000 dollar home part, and simply add the mortgage and the tax which comes out to 7432.26

Answer:

A

Step-by-step explanation:

Which answer is equal to i^45

Answers

Answer:

i

Step-by-step explanation:

The pattern is as follows

i^1 = i

i^2 = -1

i^3 = -i

i^4 = 1

Following this pattern, i^45 = i.

The value of the expression [tex]i^{45[/tex] is equal to i

Complex numbers are the square root of negative numbers. For instance:

[tex]\sqrt{-1} = i\\i^2 = -1[/tex]

Given the complex number:

[tex]i^{45}\\= (i^2)^{22} \times i\\= (-1)^{22} \times i[/tex]

Since any value raise to the even values will give a positive value hence;

[tex]=(-1)^{22} \times i\\=1 \times i\\= i[/tex]

This shows that the value of the expression [tex]i^{45[/tex] is equal to i

Learn more here: https://brainly.com/question/12769464

Write the following as an equation. Then solve.
The sum of eight times a number, and 8, is equal to seven times the number
Write the above sentence as an equation

Answers

Answer:

8x+8=7x

Step-by-step explanation:

The variable is supposed as x where ever the exact number is not mentioned.

n*8 + 8 = n*7 --> the answer must be n = -8 because:

8n + 8 = 7n

8n - 8n + 8 = 7n - 8n

8 = -1n

-8 = n

How did the temperature change if: at first it decreased by 10 % and then decreased by 30% ?

Answers

Answer:

We decreased by 37%

Step-by-step explanation:

Let x be the starting temperature

We decrease by 10 percent which means we are left with 100-10 =90 percent

.90 x

Then we decrease by 30 percent, 100 - 30 = 70

( .90x) * .70

.63x

We  have .63 of the original left or 63%

100 -63 = 37

We decreased by 37%

Answer:

37% and it decreased

Step-by-step explanation:

-((-7) +(4)(-12)+(-3)(11)+(-2))

Answers

Answer:

90

Step-by-step explanation:

-((-7) + 4 × (-12) + (-3) × 11 + (-2))

-(-7 + 4 × (-12) + (-3) × 11 + (-2))

-(-7 - 48 - 33 - 2)

-(-90) → 90

Final Answer - 90

Hope this helped! :)

Answer:

90

Step-by-step explanation:

Recall Order of Operations rules that require that computations inside parentheses must be done first.  Next, multiplication be done before addition or subtraction.  

-((-7) +(4)(-12)+(-3)(11)+(-2))  can be re-written as

-            ((-7) +(4)(-12)+(-3)(11)+(-2)), which in turn becomes:

-( -7 - 48 - 33 - 2 ), or

-( -55 - 35), or

- (-90), or 90

What is the domain of this function?
-1
2
3
6
5
8

Answers

A) {-1,3,5}

Domain is the set of values you input in a function. The range is the output value you obtain.

how would i do number 2?

Answers

Answer:

m=2

Step-by-step explanation:

When you put a number into the inverse of a function (f^-1) you get the original number back.

Ex: f^-1(11) = (11-3)/2 = 4

f(4) = 2×4+3 = 11

So, f(-5)=-2

So, when x is -5,

f(x) = -2

f(x)=m(-5)+8

-2=m(-5) + 8

m=2

please help for math​

Answers

Answer:

2.35 m²

Step-by-step explanation:

Divide the shape into shapes you can calculate the area of: a rectangle with a semi-circle on top, minus a square.

1. Calculate the area of the rectangle. Formula for area of a rectangle is length · width

1 m · 2 m = 2 m²

2. Calculate the area of the semi-circle. Formula for a semi-circle is [tex]\frac{\pi r^{2} }{2}[/tex] (use 3.14 for π) (radius is equal to half the diameter)

3.14(0.5)² = 0.785

0.785 ÷ 2 = 0.3925 m²

3. Combine the total area

2 + 0.3925 = 2.3925

4. Calculate the area of the square that will not be painted. Formula for area of a square is s² (side · side)

0.2² = 0.04 m²

5. Subtract the area of the square from the total area

2.3925 - 0.04 = 2.3525

2.3525 rounds to 2.35 m²

The answer is 2.35m2

Please help, this is due in 20 minutes, I need to do other work, please help. 7) Chris pays €18 for a meal, the Exchange rate is £1 = €1.65. What is the price of the meal in pounds? 8) In the USA a jacket costs $96. The Exchange rate is £1= $1.54. How much is the jacket in pounds? 9) In Hungary, Jack pays 874 Forints for a box of chocolates. The Exchange rate is £1= 350 Forints. How much does he pay for the chocolates to the nearest pence? 10) Jan buys a pair of sunglasses in Boots for £12.50. In Portugal the same pair of glasses is €15. If the exchange rate is £1 = €1.12, where are the glasses the cheapest? Show your working.

Answers

7)18/1.65=10.9 so the meal cost £10.90

8)96/1.54=62.3376623377 so the jacket cost £62.38

9)874/350=2.497142857 so it cost £2.49

10)15/1.12=13.3928571 meaning the pair of sunglasses in Portugal costs £13.39 so it is cheaper to buy the glasses in boots

Determine if the following triangle is a right triangle or not using the Pythagorean theorem converse. Triangle with side lengths:8 in,15 in and 17 in
A.true,these measures do form a right triangle

B.false,these measures do not form a right triangle

Answers

Answer:

Picture of the problem please?

Step-by-step explanation:

I NEED HELP ASAP!!!!! WILL MARK BRAINLIEST!!!!!!

Answers

Answer: 16

Step-by-step explanation:

The 7 and the 9.

Look closely

Two different questions pleas try and answer both but if you can only answer one its fine

Answers

Answer:

2nd Question: 4.254 to the power of -9

Step-by-step explanation:

Take 0.000000004254 and move the decimal 9 places to the right. It is to the power of -9 because the decimal is moving to the right, and not the left.

Determine the domain of the function 9x/ x(x^2-49)

Answers

Answer:

Step-by-step explanation:                  

                                                                       9

The given function may be reduced to -------------- , x ≠ 0 because we cannot

                                                                  x^2 - 49  

division by zero in the original form of the function is undefined.  Furthermore, x cannot be either ±7, for the same reason.

Thus, the domain of this function h(x) is {x ≠ 0, x ≠ ±7}

Determine the measure of obtuse angle A. answers: A) 130° B) 122° C) 58° D) 7°

Answers

Answer:

B) 122 degrees.

Step-by-step explanation:

Consider the kite :- the 2 angles at the tangents are 90 degrees so we have:

9x - 5 + 14x + 24 + 90 + 90 = 360

9x - 5 + 14x + 24  = 180

23x + 19 = 180

23x = 161

x = 7

So the obtuse angle = 14(7) + 24

= 98 + 24

= 122 degrees.

< B is opposite

А. АС
B. AB and BC
C. BC
D. ZC
E. AB
F. ZA

Answers

A. AC because of how it is directly across from the Angle

The angle ∠B is opposite AC in the triangle.

Option A is the correct answer.

We have,

From the triangle,

There are three angles:

∠A, ∠B, and ∠C.

And,

The sides opposite to each angle are:

AC is opposite ∠B

AB is opposite ∠C

BC is opposite ∠A

Thus,

The angle ∠B is opposite AC in the triangle.

Learn more about triangles here:

https://brainly.com/question/25950519

#SPJ2

PLEASE HELP IVE ASKED OTHER QUESTIONS BUT IT WONT BE ANSWERED

Answers

Answer:

The equation in standard form is [tex]\frac{4}{3}x+y=-2[/tex]

Step-by-step explanation:

Given Equation : [tex]y=\frac{-4}{3}x-2[/tex]

The given equation is in the slope intercept form

Slope intercept form : [tex]y = mx+c[/tex]

m denotes slope

c denotes y-intercept

We are supposed to covert it into standard form

Standard form : Ax+By=C

[tex]y=\frac{-4}{3}x-2[/tex]

[tex]\frac{4}{3}x+y=-2[/tex]

Hence The equation in standard form is [tex]\frac{4}{3}x+y=-2[/tex]

5*2568?252+2626*25625-26236

Answers

Answer:

if the ? is suppose to be a + then the answer is : 67278106

Step-by-step explanation:

PLEASE HELP ME!!!
Create an opinion about if you think the United States should switch to the metric system. Then find quotes you can use to support your opinion. Use the example to guide you.

Example: I think we should/should not use the metric system in the United States , and this quote from either the article you found or the given reading supports my idea: “ quote from the article you found or the given reading .”
DO NOT USE THE EXAMPLE!!!

Answers

Answer:

Uhm so I don't have a quote so be like this just my opinion but i think we should switch to the metric system

why?:

CUZ THE WEIRD SYSTEM THAT WE ARE USING IS CONFUSING AND DUM

the metric system is simple everything is a power of 10 but be like this WERID USA decided to use this complicated thing where u had to memorize all dis trash and stuff

ok no hate lol

plz dont report meh i just want my opinion out

Help me fill in the blanks

Answers

Answer:

Statement               Reason

AC bisects ∠BCD   Given

∠BCA ≅ ∠DCA       Definition of angle bisector

DC ⊥ AD                 Given

∠ADC = 90°            Definition of perpendicular

BC ⊥ AB                  Given

∠ABC = 90°             Definition of perpendicular

∠ADC ≅ ∠ABC       Right angles are ≅

AC ≅ AC                 Reflexive property of congruence

ΔABC ≅ ΔACD       AAS postulate

BC = DC                  Corresponding parts of congruent triangles are congruent

Lewis Hamilton completed the first lap at the Monaco Grand-Prix with an average speed of 125 mi/h. His goal is to complete the first two laps with an average speed of 250 mi/h. How fast (in terms of average speed) should his second lap be?

Answers

Answer:

  infinitely fast

Step-by-step explanation:

To have double the average speed, he must complete the two laps in the same amount of time that he spent completing the first lap. That is, he must complete the second lap in zero time.

Hamilton's average speed for the second lap should be infinite. (He needs to finish it in zero time.)

_____

  speed = distance/time

Multiplying by 2, we get ...

  2×speed = 2×distance/time . . . . . the time hasn't changed

With 98% confidence interval and n = 25. Find left critical value for Zinterval.
0 -2.492
0 -2.05
0 -2.797
-2.326

Answers

Answer:

[tex]\alpha=1-0.98 =0.02[/tex]

And [tex]\alpha/2 0.01[/tex], the degrees of freedom are given by:

[tex] df= n-1= 25-1=14[/tex]

Then the critical value using the t distribution with 24 degrees of freedom is:

[tex] t_{\alpha/2}= \pm 2.492[/tex]

And the best solution would be:

0 -2.492

Step-by-step explanation:

For this problem we know that the sample size is n = 25. The confidence level is 98% or 0.98 then the significance would be:

[tex]\alpha=1-0.98 =0.02[/tex]

And [tex]\alpha/2 0.01[/tex], the degrees of freedom are given by:

[tex] df= n-1= 25-1=14[/tex]

Then the critical value using the t distribution with 24 degrees of freedom is:

[tex] t_{\alpha/2}= \pm 2.492[/tex]

And the best solution would be:

0 -2.492

PLEASE HELP ME!!! ASAPPPPP!!!!!!


expand and simplify​

Answers

Answer:

8x+11

Step-by-step explanation:

This problem can be solved by using distributive property.

if there is expression  a(b + c).

then by distributive property.

a(b + c). = ab + ac

given problem

3(2x+1) + 2(x+4)

by using distributive property.

=>3*2x + 3*1 + 2*x + 2*4

=> 6x + 3 + 2x + 8

adding term containing x together and constant term together

=> 8x + 11

Thus, solution is 8x+11

Naomi fish is 40 millimeters a humid pig is 25 centimeters long how much longer is the humid pig

Answers

Answer:

The humid pig is 210 millimeters longer.

Step-by-step explanation:

Naomi fish= 40 millimeters

Humid pig = 25 centimeters

1 centimeter is equal to 10 millimeters.

Naomi fish - 40 millimeters

Humid pig- 250 millimeters

To find how much lobger the humid pig is subtract 40 from 250.

250-20 = 210

210 millimeters longer.

Answer:

Step-by-step explanation:

we know that

Answers in cm

we know that

Naomi's fish is 40 millimeters long

convert to centimeters

and

her guinea pig is 25 centimeters long

Find the difference

so

The guinea pig  is  much longer than her fish

Answers in mm

we know that

Naomi's fish is 40 millimeters long

and

her guinea pig is 25 centimeters long

convert to millimeters

Find the difference

so

The guinea pig  is  much longer than her fish

URGENT !!! f(x) = x^2. what is g(x)?

Answers

Answer:

C

Step-by-step explanation:

Hello

The point (2,1) is on he graph of g

which means that g(2)=1

for A g(2)=2*4=8

for B g(2)=1/(2*2)

for C g(2)=1

for D g(2) =4/2=2

for the correct answer is C

Hope this helps

the points plotted below are on the graph of a polynomial. How many roots of the polynomial lie between x=-4 and x=3​

Answers

Answer:

1 zero:  Answer C

Step-by-step explanation:

Keep in mind that the polynomial value is zero at any root.  Therefore each point that is a root must lie precisely on the x-axis (where y = 0).  In the graph given there is only one such point  (Answer C)

1. What wavelengths are associated with the light color observed in each metal’s flame test?
2. What are the most probable atoms in your unknown solid based on the observed light emissions?
3. Sodium light is easy to filter because it only emits light at a specific wavelength. Would any of the other metals you tested also be easy to filter? Why or why not?
4. If a fireworks engineer was planning a Christmas show and wanted to create a red explosion followed by a green one. Based on the flames observed, which metal salts should they use?

The metal salts I used to test were Potassium Chloride, Lithium Chloride, Copper Chloride, Sodium Chloride, and an Unknown Salt.

Answers

Answer:

Here's what I get

Step-by-step explanation:

1. Wavelengths

[tex]\begin{array}{lcc}\textbf{Salt} & \textbf{Flame Colour} & \mathbf{\lambda} \textbf{/nm}\\\text{KCl} & \text{violet} & 423\\\text{LiCl} & \text{red} & 701\\\text{CuCl}_{2} & \text{blue-green} & 492\\\text{NaCl} & \text{ orange-yellow} & 590\\\end{array}[/tex]

2. Identity of unknown

Don't know. You haven't told us its flame colour.

3. Light filters

You could probably filter lithium light. It is almost pure red.

The other elements emit light of mixed colours. It would be difficult to filter them with filters of a single wavelength.

4. Fireworks chemicals

For a red explosion followed by a green one, the engineer should use LiCl and CuCl₂.

7.5+k=10 7.5+k-7.5=10-7.5 step 1 k=2.5 step 2

find her mistake
a: step 1
b: step 2
c: no mistake

Answers

Answer:

C

Step-by-step explanation:

ERROR

mean median and mode of 50 2 36 12 40 10 14 27 13 3 36 10 9 34 42 1 24 154 4 21 31 7 4 12 3 31 8 3 24 66 3 22 52 2 25 5 14 29 48 4

Answers

Answer:

The mean is the average of a set of numbers. To calculate mean, you would add up all the numbers, then divide by how many numbers there are.

50 + 2 + 36 + 12 + 40 + 10 + 14 + 27 + 13 + 3 + 36 + 10 + 9 + 34 + 42 + 1 + 24 + 154 + 4 + 21 + 31 + 7 + 4 + 12 + 3 + 31 + 8 + 3 + 24 + 66 + 3 + 22 + 52 + 2 + 25 + 5 + 14 + 29 + 48 + 4 = 935

There are 40 numbers in the set, so you would divide by 40.

935 ÷ 40 = 23 15/40 = 23.375

So, the mean is 23.375.

The median is basically the "middle" of a sorted list of numbers. To find the median, place the numbers in value order and find the middle number.

1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 5, 7, 8, 9, 10, 10, 12, 12, 13, 14, 14, 21, 22, 24, 24, 25, 27, 29, 31, 31, 34, 36, 36, 40, 42, 48, 50, 52, 66, 154

So, the median is 14.

The mode is the number that appears the most often in a set of numbers.

3 appears 4 times in this set of numbers.

So, the mode is 3.

Answer:

Mean: 23.82

Add these numbers together 1, 2, 3, 3, 3, 3, 4, 4, 4, 5, 7, 8, 9, 10, 10, 12, 12, 13, 14, 14, 21, 22, 24, 24, 25, 27, 29, 31, 31, 34, 36, 36, 40, 42, 48, 50, 52, 66, 150

=929

Then divide by the amount of numbers : 39

929/39 = 23.820512

Median: 14

Arrange the numbers is least to greatest.

Find the number in the middle of the set.

Mode: 3

Find what number occurred the most in the set.

The expression 14s(s - 1) can be used to find
the total number of cards created by the ninth
grade students. Based on the given information,
which of the following statements must be true?
Select all that apply.

Answers

Answer:

B. The variable s represents the number of students in each class.

C. The coefficient 14 represents the number of classes in the 9th grade.

Step-by-step explanation:

The total number can be found by multiplying the number of the things with the number of people producing it. For example if 5 boys make 5  colored ropes the total number of ropes will be 5*5= 25.

In this question the combinations rule is used for variuos number of classes which are 14. Now we have to find the number of students which are s (s-1). Suppose s= 6 so the number of students would be 6(6-1) = 6(5) = 30

We will multiply the number of classes 14 with the number of students s(s-1) to get the total number of cards produced.

If y varies jointly with x and y =3 when x=2 and z=4 find y when x=8 and z=12

Answers

Answer:

y=10

Step-by-step explanation:

As you can see, the order when x=2 and z=4, is y=x+1, z=y+1, therefore y was 3.

Then, you can find y when x=8 and z=12 by:

12-8=4 (the difference between z and x)

and then divide 4 by 2 (the number of intervals between x, y, and z)

then get 2 (as the difference between x and y.

The answer is 8+2=10.

Hope this helps!

Other Questions
free brainly to the correct answer Question 1 of 102 PointsWhat is the SI unit for gravitational potential energy?A. NewtonB. JouleC. MeterD. Watt Mason Company's schedule of cost of goods manufactured is as follows: Costs incurred: Direct labor cost $70,000 Purchases of raw materials $118,000Manufacturing overhead $80,000Advertising expense $90,000Sales salaries $50,000 Depreciation, office equipment $3,000 Beginning of year End of the yearInventories: Raw materials $7,000 $15,000Work in process $10,000 $5,000Finished goods $20,000 $35,000Required: a. Prepare a schedule of cost of goods manufactured. b. Prepare the cost of goods sold section of Mason Company's income statement for the year. Which of the following describes a major outcome of American support for the bay of pigs invasion Compute the volume percent of graphite, VGr, in a 3.1 wt% C cast iron, assuming that all the carbon exists as the graphite phase. Assume densities of 7.9 and 2.3 g/cm3 for ferrite and graphite, respectively. ___________________ and _______________ allowed German citizens to sidestep moral qualms about mass murder. the arts are only discussed in the arts and entertainment section of the paper:-true -false Read The Four Clever Brothers, and then identify the storys main elements by filling in the table. Elements. The Four Clever Brothers setting. plot.characters.conflict.theme.point of view. Write the state symbol for chlorine at room temperature.Cl2 (___) You made two deposits to your bank account this month. One deposit was $24.61 and the second deposit was $16.49. Your balance at the end of the month is $73.31 and you made no withdraws. Write and evaluate an expressions for your balance at the beginning of the month subject:(subtracting rational numbers) Use the following information about the current year's operations of a company to calculate the cash paid for merchandise. Cost of goods sold $ 243,000 Merchandise inventory, January 1 71,800 Merchandise inventory, December 31 72,700 Accounts payable, January 1 69,700 Accounts payable, December 31 76,800 Multiple Choice $235,000. $236,800. $251,000. $249,200. $243,000. PLEASE HELP, I WILL MARK YOU THE BRAINIEST 1)Each letter of the word MATHEMATICS is written on a separate slip of paper and placed in a hat. A letter is chosen at random from the hat. a. What is the probability of choosing M on your first try? 2) Suppose you choose an M on your first try. You keep the slip of paper (do not replace it in the hat) and go for another letter. What is the probability of getting another M? Find the missing length indicated. Cellular respiration may occur by either aerobic or anaerobic means. Identify the type of respiration that matches each item. One description will match both types of respiration. What is the exact circumference of a circle with a diameter of 40 feet? Graph each of the following lines without using a table of values a. y = 23x - 5 b. 6x - 2y + 5 = 0 my dad is designing a new garden. he has 21 feet of fencing to go around the garden. he wants the length of the garden to be 1 1/2 feet longer than the width. how wide should he make the garden? if a current of 0.01 A is flowing through a circuit with two resistors in a series what is the voltage? mac didnt want to let her down. He reached into his wallet and found a twenty-dollar bill. He had just placed it on the counter when he heard a sound behind him. Mac froze. He wasnt alone in the store. What evidence supports the statement that Mac "wasn't alone in the store"? Under which conditions, according to the Porter five-forces model, can a supplier group gain power?a. When there is low differentiation by the supplierb. When there is a lack of importance of the buyer to the supplier groupc. When there is not a dominance by a few suppliersd. When the supplier group does not pose a threat of forward integration