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2 years ago

Expressions is equal to 2(40 - p)?

Mathematics

1 answer:

Bumek [7]2 years ago

8 0

80 - 2p
You use the distributive property

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The problem is in the picture :)

frozen [14]

Answer:

Last option: 4

Step-by-step explanation:

The quadratic equation simplified: $x^2-4x=-\frac{7}{2}$ has the form:

$ax^2+bx=c$

In this case, you can identify that "a", "b" and "c" are:

$a=1\\b=-4\\c=-\frac{7}{2}$

To solve this quadratic equation by completing the square, Carlos should add $(\frac{b}{2})^2$ to both sides of the equation. This is:

$(\frac{-4}{2})^2=(-2)^2=4$

Then:

$x^2-4x+4=-\frac{7}{2}+4$

Therefore you can observe that the number he should add to both sides of the equation is: 4

8 0

3 years ago

2x + 3y = 26 3x + 5y = 40 find x and y I will give brainliest

Yuki888 [10]

Answer:

x = 10 and y = 2

Step-by-step explanation:

multiply first equation by 5 and 2nd equation by 3 then subtract equation 1 and 2, we get,

10x+15y= 130

9x+15y=120

( -) (-) (-)

x= 10

substituting the value of x in equation 1 we get

2x + 3y = 26

2*10 + 3y = 26

3y = 26-20

y =6/3

y= 2.i hope this helps

7 0

3 years ago

The two triangles shown in the figure are similar. Find the distance, d, across Coyote Ravine.

Masteriza [31]

Answer:

d = 157.5 m

Step-by-step explanation:

from similar triangle:

350/400 = d/180

d = 350/400 * 180

d= 157.5 m

4 0

3 years ago

If you know this please help

Anuta_ua [19.1K]

Answer:

its c hope this helps:)

Step-by-step explanation:

4 0

3 years ago

Can someone help me with this?

Gekata [30.6K]

Step-by-step explanation:

5 0

2 years ago