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kvasek [131]
3 years ago
10

8(−9 − 5x) + 4b use x = 9 and b = −9

Mathematics
1 answer:
erma4kov [3.2K]3 years ago
7 0

Step-by-step explanation:

8(-9 - 5 × 9) + 4 × (-9)

= 8( -14 × 9) + (- 36)

= 8( -126) - 36

= -1008 - 36

= -1044

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The length of the floor is 32 m longed than it’s witdth and there is greater than 200 square meters. You will cover the floor co
Vilka [71]

Answer:

Step-by-step explanation:

The area of the floor A = Length * Width

Given

A = 200 square meters

If the length of the floor is 32 m longed than it’s width then;

L = 32+W

A = LW

200 = (32+W)W

200 = 32W + W²

W²+32W-200 = 0

W = -32±√32²+800/2

W = -32±42.71/2

W =  -32+42.71/2

W = 10.71/2

W = 5.35 m

L = 32+5.35

L = 37.35m

Hence the dimension is  5.35ft by 37.35m

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3 years ago
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Answer:

perfect positive association

6 0
2 years ago
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anygoal [31]
Hi there!

Since the triangle is equilateral, all of its sides are congruent. This means that to solve, we can set the two given equations equal to each other.

2(x - 8) = 1/2x + 8
2x - 16 = 1/2x + 8
1.5x - 16 = 8
1.5x = 24
x = 16

Now that we know what x is, we can plug that in for x in the equation for ZY.

2(16 - 8) = ZY
ZY = 2(8)
ZY = 16 units

And here is the work to show that XZ is also 16.

1/2(16) + 8 = XZ
XZ = 8 + 8
XZ = 16

Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
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kolezko [41]
C is the correct answer. It can’t be D because negative can’t be under radical.

Hope this helps!
5 0
3 years ago
Read 2 more answers
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