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3 years ago

−8y+9x=−5 8y+7x=−75 x= y=

1 answer:

5 0

-8y + 9x = -5
8y + 7x = -75 +
--------------------------
/ 16x = -80

x = -80/16
x = -5

8y + 7x = -75
8y - 35 = -75
8y = -75 + 35
8y = -40
y = -40/8
y = -5

Answer : x = y = -5

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Rewrite each expression without using absolute value notation |7m-56| if m<8

dusya [7]

Considering the definition of the absolute value function, the expression is written as -7m + 56.

<h3>What is the definition of the absolute value function?</h3>

The absolute value function is defined as follows:

$|x| = x, x \geq 0$ .

$|x| = -x, x < 0$

That is, where the expression is negative, it is multiplied by -1, while where it is not negative the expression is kept.

In this problem, the expression is:

|7m - 56|

For m < 8, we have that one example is m = 0:

7(0) - 56 = -56.

The expression is negative, hence the signal is changed, that is:

|7m - 56| = -(7m - 56) = -7m + 56.

More can be learned about the absolute value function at brainly.com/question/24734454

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7 0

1 year ago

the base of the pyramid in the diagram is a regular hexagon. The length of each side of the hexagon is 6 ft and the height of th

miss Akunina [59]

Answer:

The volume of the pyramid is $V=187\ ft^{3}$

Step-by-step explanation:

we know that

The volume of the pyramid is equal to

$V=\frac{1}{3}BH$

where

B is the area of the base of the pyramid

H is the height of the pyramid

we have

$B=93.5\ ft^{2}$

$H=6\ ft$

substitute

$V=\frac{1}{3}(93.5)(6)=187\ ft^{3}$

5 0

3 years ago

Read 2 more answers

Bella saw that 7 out of 11 people brought an umbrella to the beach. There 99 people there. How many of them did not have a beach

Alinara [238K]

Hello!

7 out of 11 people brought an umbrella to the beach

this is a fraction of 7/11

We multiply this by 99 to get how many people brought an umbrella out of 99

7/11 * 99 = 63

You subtract this from 99 to see how many did not have an umbrella

99 - 63 = 36

The answer is 36 people

Hope this helps!

7 0

3 years ago

Simplify. 8r(4 - p) 32r -p 32r - 8rp 32 - rp 4 - 8rp

gizmo_the_mogwai [7]

So the right answer is of option B.

Look at the attached picture

hope it will be helpful to you...