help please the picture is here when you click here

Help Please The Picture Is Here When You Click Here
Help Please The Picture Is Here When You Click Here

Answers

Answer 1

a. By the distributive property, 3x + 7x = (3+7)x = 10x, so this is always true.

b. By the distributive property, 5x-10x = (5-10)x = -5x, which is not necessarily equal to 5x (if you let x equal any value other than zero, you will see that this does not hold).

c. 4(1 + 2x) - 3x is equal to (4 + 8x) - 3x (by the distributive property), which is equal to 4 + 5x. This is equal to 5x + 4 since addition is commutative.

d. 5 - 3(2 - 4x) = 5 - (6 - 12x) = -1 + 12x, so this does hold for all values of x.


Related Questions

Which number has a 3 with a value that is 100 times greater than the value of 3 in 20.342 ?
1) 307.18
2) 423.06
3) 108.173
4) 36.25

Answers

Answer:

108.173

Step-by-step explanation:

108.173 has a 3 with a value that is 100 times greater than the value of 3 in 20.342

There are 140 cars in a parking lot.Bob looks at 15 cars and finds out that 2 cars are gray-colored. Approximately how many cars in the parking lot are gray-colored?

Answers

Answer:

about 18.7

Step-by-step explanation:

I need all the help I can

Answers

^^ they’re right so hope it helps

Answer quickly!!!!!!!!

Answers

Answer:

c: 8   i'm sure

Step-by-step explanation:

Because we count where the line stops is 8 squares which means it's 8

Answer: b = sqrt(61)

Explanation:

x^2 = 6^2 + 5^2
x^2 = 36 + 25
x^2 = 61
x = sqrt(61)

What is the diameter of a hemisphere with a volume of 863 in', to the nearest tenth
of an inch?

Answers

Answe 33.2

Step-by-step explanation:

863÷3.14=274.8407643312 find the square root then multiply by 2

The diameter of the hemisphere is twice the radius,

d = 2r ≈ 16.6 inches

What is volume?

Volume is the measure of the amount of space occupied by a three-dimensional object. It is usually expressed in cubic units, such as cubic meters, cubic feet, or cubic centimetres.

The volume of a hemisphere is given by V = (2/3)πr³, where r is the radius of the hemisphere.

We can solve for the radius as follows:

V = (2/3)πr³

863 = (2/3)πr³

r³ = (863 x  3) / (2π)

r³ ≈ 650.35

r ≈ 8.3 inches

The diameter of the hemisphere is twice the radius, so:

d = 2r ≈ 16.6 inches

To know more about volume follow

https://brainly.com/question/31613095

#SPJ2

Find the work done when a crane lifts a ​-pound boulder through a vertical distance of feet. Round to the nearest​ foot-pound.

Answers

Answer:

72000ft-1b

hope it helps

please mark brainliest

x+3x=40 what is x please

Answers

Answer:

x=10

Step-by-step explanation:

1. Combine like terms

4x=40

2. Divide 4 both sides to x alone

4x/4=40/4

x=10

Answer:

10

Step-by-step explanation:

x+3x=40

4x=40

x=40/4=10

Find the value of r.

Answers

Answer:

r = 10.5

Step-by-step explanation:

using the Pythagorean theorem:

(7 + r)² = 14² + r²

49 + 14r + r² = 196 + r²

subtract r² from both sides of the equation:

14r + 49 = 196

subtract 49 from both sides:

14r  = 147

divide both sides by 14:

r = 10.5

The circumference of a circle is 9π m. What is the area, in square meters? Express your answer in terms of π

Answers

Answer:

[tex]20.25\pi\:\mathrm{m^2}[/tex]

Step-by-step explanation:

Formulas to know:

Area of a circle: [tex]A=r^2\pi[/tex]Circumference of a circle: [tex]C=2r\pi[/tex]

Since we know the circumference, we can use formula for the circumference of a circle to find the circle's radius:

[tex]9\pi=2r\pi,\\9=2r,\\r=4.5[/tex]

Now we can plug in [tex]r=4.5[/tex] into the formula for an area of a circle:

[tex]A=4.5^2\pi=\boxed{20.25\pi\:\mathrm{m^2}}[/tex]

Answer:

20.25 pi

Step-by-step explanation:

The circumference of a circle is given by

C = 2 * pi *r

9 pi = 2 * pi *r

Divide each side by 2pi

9pi / 2 pi = 2 pi r / 2 pi

4.5 = r

Now we can find area

A = pi r^2

   = pi ( 4.5)^2

     20.25 pi

Which equation can be used to solve for the value of x?

Answers

option : c. 2x + 15 = 145

cuz, the angles are vertical opposite angles

Answer:

2x + 15 = 145

Step-by-step explanation:

vertical angles are congruent

=> (2x + 15)° = 145°

please help me
( will give brainliest )

any links or websites commented will be reported !

Answers

1.I can’t see all exsercie help


Circle A has a diameter of approximately 20 inches and an area of approximately 300 in2. Circle B has a diameter of
approximately 60 inches.
Which of these could be the area of Circle B?

Answers

Answer:

2700 in^2

Step-by-step explanation:

30x30x3(which is how they are rounding π) = 2700 in ^2

Please help ASAP I’ll mark you as brainlister please

Answers

Answer:

2 x 2=4 on each side so 4 x 2=8

5 x 2=10

10 x 4=40

Step-by-step explanation:

At the beginning of spring, Austin planted a small sunflower in his backyard.
When it was first planted, the sunflower was 25 inches tall. The sunflower
then began to grow at a rate of 3 inches per week. How tall would the
sunflower be after 6 weeks? How tall would the sunflower be after w weeks?

Answers

Answer:

After 6 weeks the sunflower would be 43 inches tall. After w weeks, the sunflower would be 25 + 3w tall.

Use the Law of Cosines to find a. Round answer to the nearest tenth

Answers

Answer:

Step-by-step explanation:

The box-and-whisker plot summarizes student scores on a physical fitness test. Students receive an award for scores at or above the upper quartile. What is the lowest score a student can get to receive an award?

Answers

Answer:

74

Step-by-step explanation:

To receive an award, student must obtain a score at or above the upper quartile, from.tye boxplot, the upper quartile is depicted by the endpoint of the box. Hence, the upper quartile of the distribution is 74. Hence only stude Ts who score 74 and above will receive an award Hence, the minimum score required is 74.

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Answers

Answer:

12-27+9Y=5+6=90X5=800

Step-by-step explanation:

What value of x makes the 2 triangles congruent by HL? Find the length of CB

Answers

Step-by-step explanation:

here's your solution

==> Both traingle are congruent

==> BC = BD. [ c.p.c.t ]

==> x + 8 = 3x - 14

==> x - 3x = - 14 - 8

==> - 2x = - 22

==> x = 22/2

==> x = 11

now CB = x + 8 = 11 + 8

CB = 19

hope it helps

ANSWER ASAP , NO LINKS

Answers

……………………………………the answer is 1/6.

Juan went to the store to buy a plant for his mother, but forgot to ask which kind to get. Out of 30 plants, eighteen of them are a kind that his mother would want. If Juan chooses one randomly, what is the probability that he will choose a kind that his mother would want?

Answers

Answer:

Probability [Randomly choose plant Juan's mother want] = 3 / 5

Step-by-step explanation:

Given:

Total number of plant in store = 30 plants

Number of plant kind Juan's mother want = 18

Find:

Probability [Randomly choose plant Juan's mother want]

Computation:

Probability of an event = Number of favorable outcome / Total number of outcomes

Probability [Randomly choose plant Juan's mother want] = Number of plant kind Juan's mother want / Total number of plant in store

Probability [Randomly choose plant Juan's mother want] = 18 / 30

Probability [Randomly choose plant Juan's mother want] = 3 / 5

21/24 x 16/24, guys plz help..

Answers

Answer:

g00gle

Step-by-step explanation:

click new tab and type in 21/24 x 16/24

What is the value of x????

Answers

Answer:

x = 28

Step-by-step explanation:

The 2 radii of the circle form an isosceles triangle with base angles congruent, both 59°

The angle at the vertex O is then

180° - (59 + 59)° = 180° - 118° = 62°

The angle between the tangent and the radius is 90°

Then

x = 180 - (90 + 62) ← sum of angles in a triangle

x = 180 - 152 = 28

Francesca is 4 years older than Winnie. If the
product of their ages is 45, how old is Winnie?

Answers

Answer:

41

Step-by-step explanation:

Our equation is: Francesca-Winnie

In other words: 45-4

Hope this helps and have a great day!

Answer:

5 is the answer

Step-by-step explanation: francesca is 9 and winnie is 5 and 9x5 is 45

you're welcome

I really need help this is hard

Answers

Answer:

y = 3x + 3

Step-by-step explanation:

Y intercept is 3 so that's at the end of the equation. Input the points and that equation fits.

A school purchases boxes of candy bars. Each box contains 50 candy bars. Each box costs $30. How much does the school have to charge for each candy bar to make a profit of $10 per box?
A $0.40
B $0.50
С $0.80
D $1.25​

Answers

Answer:

C

Step-by-step explanation:

30/50 = each bar costs 0.60 dollars

10/50 = 0.20 dollars

0.60 + 0.20 = 0.80

C. Because If each individual box is $30 and there is 50 in each, divide 30/50. Then you know how much they are profiting off that amount. Then calculate for $10 per box

Find the value of x for the pair of acute angles that corresponds to the solution of the equation: sin(3x + 2) = cos(7x + 8).

a
x = 10
b
x = 8
c
x = 4
d
x = -1.5

Answers

Answer:

x = 8

Step-by-step explanation:

3x + 2 + 7x + 8 = 90

10x + 10 = 90

10x = 80

x = 8

Check:  3x + 2 = 3(8) + 2 = 26°

7x + 8 = 7(8) + 8 = 56 + 8 = 64°

sin 26 = cos 64

The equation of a parabola is y=x^2–4x+13. Write the equation in vertex form.

Simplify any fractions.

Answers

Answer:

y = (x - 2)² + 9

Step-by-step explanation:

To obtain the equation in vertex form use the method of completing the square.

Add/ subtract ( half the coefficient of the x- term)² to x² - 4x

y = x² + 2(- 2)x + 4 - 4 + 13

  = (x - 2)² + 9 ← in vertex form

Answer:

vertex form : y=(x-2)^2+9

Step-by-step explanation:

To convert a parabola from standard form y=x^2-4x+13 to vertex form, we complete the square.

first, complete the square using the x-terms, use the constant term to adjust and make a perfect square.

y=  x^2-4x+4   +  9

Factor the first three terms on the right-hand side.

y=(x-2)^2 + 9

the resulting express is then the vertex form, which means that

the vertex is at (x-2) = 0, x=2, and at y=9.  

Need help !

Is it linear , quadratic, exponential

Answers

Answer:

Exponential

Step-by-step explanation:

So lets look at the table.

When x = 1, y = 3

When x = 2, y = 9.

Hmmm, this doenst seem like x+number=y. It doesnt seem like a quadratic, where the values go up, then down, then up again. Or vise versa.

So this rules out linear and quadratic, for the x doesnt change by a constant, or change the direction of y.

This leaves exponential or none of the above.

When x = 3, y = 27

When x = 4, y = 81

This seems like a exponent, since:

3 to the first power is 3

3 to the second power is 9

3 to the third power is 27

and 3 to the fourth power is 81

Answer:

exponential function

Hope this helps! ;)

HELP!!! PRECALC Continuity problem, will give brain liest, thank you!!!

Answers

Answer:

Go to algebraic calculator

Step-by-step explanation:

Then go to Microsoft calculator it has everything

brainliest?

Please help me!! I have no clue how to start this

Answers

Answer:

hypotenuse= AB

Adjacent=AC

Opposite= CB

AB=?

Sol# use Pythagoras theorem {hint}

CA=?

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