Those are the math questions I need the answers of ​

Those Are The Math Questions I Need The Answers Of

Answers

Answer 1

Answer:

1)

[tex]12\sqrt{18}-3\sqrt{50}+\sqrt{32}[/tex]

[tex]12\sqrt{9}\sqrt{2}-3\sqrt{25} \sqrt{2} +\sqrt{16} \sqrt{2}[/tex]

[tex]12\times3\sqrt{2} -3\times5\sqrt{2}+4\sqrt{2}[/tex]

[tex]36\sqrt{2}-15\sqrt{2}+4\sqrt{2}[/tex]

[tex]25\sqrt{2}[/tex]

2)

[tex]\frac{1}{5+2\sqrt{6}}[/tex]

Multiply [tex]5-2\sqrt{6}[/tex]:

[tex]\frac{1\times \left(5-2\sqrt{6}\right)}{\left(5+2\sqrt{6}\right)\left(5-2\sqrt{6}\right)}[/tex]

Apply Difference of Squares formula: [tex](a+b)(a-b)=a^2-b^2[/tex]

[tex]\frac{5-2\sqrt{6}}{5^2-\left(2\sqrt{6}\right)^2}[/tex]

[tex]\frac{5-2\sqrt{6}}{25-2^2\left(\sqrt{6}\right)^2}[/tex]

[tex]\frac{5-2\sqrt{6}}{25-4\times6}[/tex]

[tex]\frac{5-2\sqrt{6}}{1}[/tex]

[tex]{5-2\sqrt{6}}[/tex]

a = 5, b = -2


Related Questions

Is there a transformation that maps shape 1 into shape 5

Answers

Answer:

yes

Step-by-step explanation: if you reflect the shape over the x-axis it falls right onto #5

Hope this helps :)

Which number line represents all of the values of x for the equation x? = 647
-032-16
7
32
-10
-32-
32
12-16
32
40
-4032-N-16
-
16
3240

Answers

Answer:

the 2nd answer.

Step-by-step explanation:

8*8 = 64.

-8 * -8 = 64

Can someone please help me with this math problem I really need help and it’s due today. Please help

Answers

Answer: just divide and its prett easy from there

Step-by-step explanation:

I need help please help me

Answers

Answer:

22/3

Step-by-step explanation:

a ÷ (b/c) = (a*b) ÷ c

[tex]\frac{2}{\frac{3}{11} } = \frac{2*11}{3} = \frac{22}{3}[/tex]

Answer:

[tex]7\frac{1}{3}[/tex]

Step-by-step explanation:

[tex]\frac{2}{\frac{3}{11} } \\\\\mathrm{Apply\:the\:fraction\:rule}:\\\quad \frac{a}{\frac{b}{c}}=\frac{a\times\:c}{b}\\\\=\frac{2\times\:11}{3}\\\\\mathrm{Multiply\:the\:numbers:}\:2\times\:11=22\\=\frac{22}{3}\\\\22\div 3 =7\: remainder 1\\\\= 7\frac{1}{3}[/tex]

D
Question 4
True or False:4.65 is less than square root 32 is

True


False

Answers

That is true because the square root of 32 is about 5.66, so 4.65 IS less than it.

[50pts] In the image above, are lines s and r parallel? Explain.

Answers

Answer/Explanation:

Yes, lines s & r are parallel, because they do not meet at any point on the plane!

Please mark brainliest!!! =D

...Also, it says 25 points, not 50...

Answer:

yes! lines s and r are parallel meaning they will never touch.

Step-by-step explanation:

which is the solution to this system of equations?

2x+y=8
2x+y=4

Answers

Answer:

2x+y=8

x=3 y=2

2x+y=4

x=1.5 y=1

Step-by-step explanation:

I dont have a step by step answer but i hope this helps!

What is the solution of the following one-step equation?
10. X + 5 = 10
a. X = -15 c. X = 5 b. X = 15 d. x = -5

Answers

Answer:

x = 5

Step-by-step explanation:

Given

x + 5 = 10 ( isolate x by subtracting 5 from both sides )

x = 5

Find the value of x. (Hint: The sum of the angle measures of a quadrilateral is 360°.)
(5x+60)

Answers

pretty sure that the value of x is 60 since

5 times 60 = 300
300 + 60 = 360 :)

Which of the following is a zero-dimensional geometric object?
A. A ray
B. A point
C. A line
D. A plane

Answers

Answer:

a point

Step-by-step explanation:

Answer

A point.

Step-by-step explanation:

Which expressions have a sum of 12?

Answers

Answer:

First one.

Step-by-step explanation:

4+(-8) -10+22 =12

24+(-12) 0+ (-12) =-24

Please brainliest! Im on my way to another rank!

The expression 24 + (-12) has a sum of 12 after applying the arithmetic operation options (b) and (c) is correct.

What are arithmetic operations?

The study of numbers and their operations, which are relevant to all other fields of mathematics, is part of the discipline of arithmetic operations. Addition, subtraction, multiplication, and division are the basic operations that make up this system.

It is given that:

The expressions are shown in the picture.

After solving using Arithmetic operation:

Take the expression:

= 24 - 12

= 12

-10 + 22

= 12

Thus, options (b) and (c) are correct.

Learn more about the arithmetic operations here:

brainly.com/question/25834626

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Explain how you can write an equation for the given situation in standard form. One number is 5 more than a second number. The product of the two numbers is 891.

A) Let x be the smaller number, and then x+5 is the larger number. This means that x(x+5)=891, which can be rewritten as x^2+5x-891=0

B) Let x be the smaller number, and then x+5 is the larger number. This means that x+(x+5)=891, which can be rewritten as 2x-886=0

C) Let x be the smaller number, and then x+5 is the larger number. This means that x(x+5)=891, which can be rewritten as x^2+5x+891=0

D) Let x be the smaller number, and then x+5 is the larger number, This means that x+5/x=891, which can be rewritten as 890x-5=0

Answers

Answer:

you figure it out

Step-by-step explanation:

Number one is going to be N1

Number two is going to be N2

Product of the two numbers combined is going to be 891

N1= N2 +5

N1 + N2 = 891

(N2+5) + N2 = 891

N2 +5 +N2 =891

2N2 + 5 =891

im gonna let you figure the rest out

What is the slope of the line through(-4,2) and (3,-3)?

Answers

Answer: [tex]-\frac{5}{7}[/tex]

Step-by-step explanation:

To find the slope of the line, you want to use the formula [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex].

[tex]m=\frac{-3-2}{3-(-4)} =\frac{-5}{7}[/tex]

Now we know the slope is [tex]-\frac{5}{7}[/tex].

A surf instructor has an initial fee of $12 and charges $8 per hour for lessons,
explain how to determine what the y-intercept is and where it would be located on a graph.
Please help me, i'm stupid and i don't know where, or how to find this.

Answers

Answer:

I am stuck on that question tooo

Step-by-step explanation:

Step-by-step explanation:

First, let's write an equation.

h= numbers of hours, the instructor will charge $8 per hour.

s= amount of $

"12" is the initial fee.

From this information the equation will look like:

s=8h

However, on our graph, we will have to start on 12 since this was the initial fee. (so on the y, put a dot on 12.)

I think that (0, 12) is the y-intercept but I'm not entirely sure. In reality, your graph can't have any negative h(x) or y(s) values so the graph would be shaped like an "L".

Question 7
2 pts
Carlos is planning to buy a new video game. He checked the price for two
games that he would like to buy. The Super Mario game costs $56.48. The
Zelda game costs $38.99. Estimate how much money will Carlos save if he
buys the Zelda game. Explain how you rounded the numbers. Include an
equation to represent how you estimated.
Edit
Insert Format Tools Table
12pt
Paragraph
BI
U
T?
:

Answers

Answer:$15-$20

Step-by-step explanation:

56.48 is about 55 38.99 is about 40. 55-40 = 15

Help please picture attached

Answers

Answer:

-10

Step-by-step explanation:

3/5(b)=-6

Divide -6 by 3/5, you get -30/3.

what is 1 7/8 rounded to the nearest yards?

Answers

it would be 2...........

Find me midpoint of -9 and 6

Answers

The answer I believe is -2. Thank you come again

Answer:

-3/2 or -1.5

Step-by-step explanation:

1) Write out the numbers:

-9, -8, -7, -6, -5, -4, -3, [-2, -1] 0, 1 , 2, 3, 4, 5, 6

2)-2 and -1 are in the middle

3)Add the numbers in the middle and divide by 2

Add the 2 numbers: (-2)+(-1)=-3Divide by 2: -3/2 Answer: -1.5

                                     

Evaluate 8.5 +(-A) for A = -7.1

Answers

Answer:

15.6 = A

Step-by-step explanation:

8.5 + ( - (-7.1))

8.5 + 7.1

15.6

f(x) = 4x – 10
g(x) = -8x2 + 6x – 10
Find: f(x) · g(x)

Answers

Answer: f(x) · g(x)=-32x³+104x²-100x+100

Step-by-step explanation:

Since we are given f(x) and g(x), all we have to do is multiply them together.

f(x) · g(x)=(4x-10)(-8x²+6x-10)                              [distribute by FOIL]

f(x) · g(x)=-32x³+24x²-40x+80x²-60x+100         [combine like terms]

f(x) · g(x)=-32x³+104x²-100x+100

Now, we have multiplied them together, we have f(x) · g(x)=-32x³+104x²-100x+100.

(7x+2y)^2-25y^2 factorise this pls.
pls help me!! Any body there!!​

Answers

Answer:

(7x + 5y) (7x - 5y)

what will be number of zeros in the square of the number 100? pls answer fasttttttttttt

Answers

Answer:

4

Step-by-step explanation:

The square of 100 means that 100 is being multiplied by itself. So the square of 100 is 100x100 = 10,000

Whenever you multiply a number by a multiple of 10, you simply add the number of 0s onto the end of the original number, so 100 originally has 2 zeros, so multiplying by 100 will add on another 2 zeros.

So, the number 10,000 which is the square of 100 has 4 zeros.

Hope this helped!

4+(9x2)÷(4-1)-4 simplify by using order of operations

Answers

Hi . I hope this answer helps!

The answer is 6

4+ (9*2)/ (4-1)-4

4+ 18 /3 -4

PEMDAS Rules state that you have to do division first in this equation

4+6-4

PEMDAS states that you have to do addition then subtraction but it depends if subtraction is first in the equation. BUT in this equation you have to addition.

10-4

6

I hope this helps and I hope you have a great day

The required simplified value of the expression is 6.

Given that,
An expression is given 4+(9x2)÷(4-1)-4,
To simplify the given expression.

What is simplification?

The process in mathematics to operate and interpret the function to make the function simple or more understandable is called simplifying and the process is called simplification.

What is arithmetic?

In mathematics, it deals with numbers of operations according to the statements.

simplification
= 4+(9x2)÷(4-1)-4
Step 1 applies to the multiply and subtraction operation in the parenthesis.|
= 4 + (18) ÷ (3) - 4
Step 2 following the PEMDAS rule division of 18 by 3,
= 4 + 6 - 4
Step 3 association of termes,
= 6

Thus, the required simplified value of the expression is 6.

Learn more about simplification here:
https://brainly.com/question/12501526

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-7/2 x 1/6 (make it a fraction) (simplified)

Answers

Answer:

The answer would be -7/12

Step-by-step explanation:

What you would do is

a/b×c/d=ac/bd

this would be the formula

so what you would do is -7 (which is the numerator X the other numerator which equals -7 times 1= -7

then you would do 2 X6= which is 12 so the answer would be 7/12 because you can't simplify it anymore

A watch was brought
for a rs 4444. At what price
sold to gain
should it be
rs 444?​

Answers

Answer:

Hence, the watcg must be bought at rupees 4888

Step-by-step explanation:

Let the desired selling price of the watch be x

Cost Price of the watch = 4444

We know that if Cost Price < Selling Price,

Selling Price - Cost Price = gain

When we substitute we get,

x-4444=444

x= 4888

Point P is 3/4 of the way from A to B. What are the coordinates of
point P?
В
2
x
-2
O
-2
A
O (-6.5, -9.5)
O (-3.5, 1.25)
O (1.5, 5.25)
O (-4,-0.5)

Answers

Answer:

B. (-3.5, 1.25)

Julie and her family go to the movies. They buy 2 adult tickets and 3 child tickets. An adult ticket costs $3.50 more than a child ticket. Julie's family spends $35.75. What is the cost of the adult ticket?
HELP PLS

Answers

Answer:

$9.25

Step-by-step explanation:

let x = the cost of a child ticket

3(x)+2(x+3.50)=35.75

3x+2x+7=35.75

5x=28.75

x=5.75 cost of child ticket

5.75+3.50= 9.25

Answer:

$9.25

Step-by-step explanation:

Start by multiplying 2 by 3.5. This will give you 7. Then subtract 7 from 35.75, which gives you 28.75. This is the full amount for five child tickets. Then you want to divide 28.75 by 5, giving you 5.75. This is the amount for a single child ticket, and because we know that an adult ticket is 3.50 more than a child ticket, you add 3.50 and 5.75, which gives you your final answer of 9.25.

40. A pendulum in a museum swings through
an angle of 60° in 17.3 s. The linear velocity
of the pendulum is 1.32 ft/s. Determine the
length of the pendulum.

Answers

Answer:

  21.81 ft

Step-by-step explanation:

For an arc of measure α and radius r, the arc length is ...

  s = r·α . . . . . . where α is in radians

Then the linear speed is ...

  s' = r·α'

Here the rate of change of arc angle is (π/3)/(17.3) rad/s, so the radius can be found to be ...

  r = s'/α/ = (1.32 ft/s)/((π/3)/17.3 rad/s) = 1.32·3·17.3/π ft

  r ≈ 21.81 ft

The length of the pendulum is about 21.81 feet.

The daily high temperatures, in degrees Celsius, for two weeks were recorded. The first week had a mean high temperature of 8 degrees Celsius and a mean absolute deviation (MAD) of 1 degree Celsius. Here is a list of the high temperatures, in degrees Celsius, for the second week. A. What is the mean temperature for the second week? B. What is the mean absolute deviation for the second week? C. Which week had greater variability in high temperature? Explain your reasoning. (When necessary, round all answers to the nearest hundredths place. Type all answers below.

Answers

Answer:

(A) The mean temperature for the second week is 4.86 degrees Celsius.

(B) The mean absolute deviation for the second week is 4.86 degrees Celsius.

(C) The second week had greater variability in high temperature.

Step-by-step explanation:

We are given that the daily high temperatures, in degrees Celsius, for two weeks were recorded. The first week had a mean high temperature of 8 degrees Celsius and a mean absolute deviation (MAD) of 1 degree Celsius.

Here is a list of the high temperatures, in degrees Celsius, for the second week;

5, 9, 7, 0, 3, 5, 5

(A) The mean temperature for the second week is given by;

                  Mean = [tex]\frac{\text{Sum of all data values}}{\text{Total number of values}}[/tex]

                             = [tex]\frac{5+9+7+0+3+5+5}{7}[/tex]

                             = [tex]\frac{34}{7}[/tex] = 4.86 degrees Celsius

(B) Mean absolute deviation for the second week is calculated as;

Firstly, subtracting mean from each data value;

| 5 - 4.86 | = 0.14

| 9 - 4.86 | = 4.14

| 7 - 4.86 | = 2.14

| 0 - 4.86 | = 4.86

| 3 - 4.86 | = 1.86

| 5 - 4.86 | = 0.14

| 5 - 4.86 | = 0.14

Now, we will find the mean of these deviations;

Mean absolute deviation = [tex]\frac{0.14+4.14 + 2.14+4.86+1.86+0.14+0.14}{7}[/tex]

                                          = [tex]\frac{13.42}{7}[/tex] = 1.92 degrees Celsius

(C) The second week had greater variability in high temperature because it's mean absolute deviation is greater than that of first week. And also the mean absolute deviation tells us that on average how far the data values are from the mean.

a^2+b^2=c^2 for c
algebra 2

Answers

Answer:

D

Step-by-step explanation:

c = √(a² + b²)  is correct because to isolate c you need to square root everything while still keeping a^2+b^2 together.

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