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3 years ago

What is the following sum?

Mathematics

2 answers:

Alex17521 [72]3 years ago

8 0

Answer:

Step-by-step explanation:

On Edge 2020

meriva3 years ago

3 0

Answer:

12b^2 (^3 square root 2a)

Step-by-step explanation:

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Solve the following system of equations by the substitution method.

ch4aika [34]

Answer:

The y-coordinate is $y=-\frac{8}{13}$

Step-by-step explanation:

Given equations are

$5x=y+6\hfill (1)$

$2x-3y=4\hfill (2)$

To solve the given equations by substitution method

From Equation (1) we can write $x=\frac{y+6}{5}$

Substitute the value $x=\frac{y+6}{5}$ in equation (2) we get

$2\times (\frac{y+6}{5})-3y=4$

$\frac{2}{5}(y+6)-3y=4$

$\frac{2y+12}{5}-3y=4$

$\frac{2y+12-15y}{5}=4$

$-13y+12=20$

$-13y=20-12$

Therefore $y=-\frac{8}{13}$

Substitute the value of $y=-\frac{8}{13}$ in equation (1) we get

$5x=-\frac{8}{13}+6$

$x=-\frac{8-78}{-65}$

$=\frac{70}{65}$

Therefore $x=\frac{14}{13}$

Therefore the y-coordinate is $y=-\frac{8}{13}$

5 0

3 years ago

The area of the parallelogram is 315 square units. What is the height of the parallelogram?

Sveta_85 [38]

Answer:

h = 15 units

Step-by-step explanation:

A = bh

315 = 21h

h = 315/21

h = 15

5 0

2 years ago

Alguien me podría ayudar

BaLLatris [955]

Answer:

yessir

Step-by-step explanation:

7 0

3 years ago

I need help on this question pls

Ivanshal [37]

Answer:

t = 17.5 f = 12

Step-by-step explanation:

If <em>MNOP </em>is a square, you know that each angle is going to be 90°. To solve, let's first set each equation equal to 90°:

$90 = 4t + 20$

and

$90 = 7f + 6$

Then solve both equations:

$90 = 4t + 20 \\ 70 = 4t \\ 17.5 = t$

and

$90 = 7f + 6 \\ 84 = 7f \\ 12 = f$

I hope that helps!

7 0

2 years ago

What is the awnser for 15+12x-5x+44-7

Allushta [10]

The answer is 52+7x I hope this helps

3 0

3 years ago