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3 years ago

-2x + 4 + 8x I need help

Mathematics

1 answer:

horrorfan [7]3 years ago

3 0

6x + 4

Hope this helped

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Help please & thank you

DiKsa [7]

$(72 \times 4)$

3 0

4 years ago

Brianna's teacher asks her which of these three expressions are equivalent to each other.

jekas [21]

Brianna's thinking is incorrect.
Expessions A, and C. are equivalent.
For C, you add 5x and x together (because they have the same variable) to get 6x - 4.
For A, you subtract 9x and 3x (because they have the same variable) to get 6x- 4.

7 0

4 years ago

Read 2 more answers

Problem Set:

Hoochie [10]

Answer:

Part a) $\frac{132}{89}$

Part b) 132:89 vs 132 to 89

Part c) $\frac{66}{7}$

Part d) 66:7 vs 66 to 7

Step-by-step explanation:

Let

x ----> the number of boys

y ----> the number girls

z ----> the number of adults

we have

x=132, y=89, z=14

Part a) Write the ratio of the number of boys to the number of girls.

To find the ratio of the number of boys to the number of girls, divide the number of boys by the number of girls

$\frac{x}{y}$

substitute

$\frac{132}{89}$

Part b) Write the same ratio using another form (A: B vs. A to B)

we have

$\frac{132}{89}$

The other form is

132:89 vs 132 to 89

Part c) Write the ratio of the number of boys to the number of adults

To find the ratio of the number of boys to the number of adults, divide the number of boys by the number of adults

$\frac{x}{z}$

substitute

$\frac{132}{14}$

Simplify

$\frac{66}{7}$

Part d) Write the same ratio using another form

The other form is

66:7 vs 66 to 7

7 0

3 years ago

Solve for the perimeter and keep it in pi

galben [10]

Answer:

24+6pi

Step-by-step explanation:

the sides on the left and right added up are

12+12=24.

the formula for perimeter of a circle is 2πr.

3 is the radius, making the equation

2π3 which is 6 pi.

for the top semicircle, the perimeter would be 6 pi divided by 2 because its a semicircle.

the bottom cut out half would also be 3 pi.

in total, we would have 24+3pi+3pi which would lead you to 24+6pi.

4 0

3 years ago

What is the domain of y=4[x+2] ?

Diano4ka-milaya [45]

The domain of <span>y=4[x+2] is (-infinity, infinity) (also known as "all real numbers") because there is no value that x cannot equal. In other words, there is no value that would make y = undefined</span>

8 0

3 years ago

Read 2 more answers