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3 years ago

15

Can someone pls help

2 answers:

Ilia_Sergeevich [38]3 years ago

7 0

I’m pretty positive it’s C: commutative property

Irina-Kira [14]3 years ago

5 0

Answer:

C

Step-by-step explanation:

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PLEASE HELP TIMED

Lerok [7]

Answer: C) (9x^4-x^3-x)/5

7 0

3 years ago

What is the measure of angle x ?

Arada [10]

Answer:

It should either be 69 or 70

Step-by-step explanation:

8 0

3 years ago

The side lengths of the following right triangle 15,20 and 25, as shown below. The altitude from the right angle splits the hypo

kompoz [17]

Answer:

$h = 12$

$x = 9$

$y= 16$

Step-by-step explanation:

Given

The attached triangle

Required

Find h, x and y

Let the base of the triangle be 15.

So, the area is:

$A = \frac{1}{2} * 15 * 20$

$i.e\ height = 20$

$A = \frac{1}{2} * 300$

$A = 150$

Let the base of the triangle be 25.

So, the area is:

$A = \frac{1}{2} * 25 * h$

$i.e\ height = h$

$A = \frac{1}{2} * 25h$

Substitute $A = 150$

$\frac{1}{2}*25h = 150$

Solve for h

$h = \frac{150 *2}{25}$

$h = 6 *2$

$h = 12$

Considering the smallest triangle

$Hypotenuse = 15$

So:

$15^2 = h^2 + x^2$

$15^2 = 12^2 + x^2$

This gives:

$15^2 - 12^2 = x^2$

$81 = x^2$

Take square roots

$9 =x$

$x = 9$

Solving for y

$x + y = 25$

$y= 25 - x$

$y= 25 - 9$

$y= 16$

7 0

3 years ago

-2+12-2^3 divided by 2^0 times 3

nikklg [1K]

Answer:

The correct answer is <u>-14</u>

Step-by-step explanation:

6 0

2 years ago

Pls help with this!! no wrong answers pls

Juliette [100K]

Answer:

x = 40

Step-by-step explanation:

180 = 100 + x +x

180-100= 2x

80 = 2x

x = 40

4 0

3 years ago