2 years ago

Find the product -a 2b 2c 2(a + b - c)

Mathematics

1 answer:

IceJOKER [234]2 years ago

4 0

i think it' =-8abc(a+b-c)

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Will mark brainliest please help Debbie notices that the amount owed on her monthly heating bill varies inversely with the avera

Alekssandra [29.7K]

Answer:

The bill is $1837.5

Step-by-step explanation:

Given

$B = Bills$

$T = Temperature$

$B\ \alpha\ \frac{1}{T}$ --- The variation

T = 35; when B = 210

Required

Find B when T = 40

$B\ \alpha\ \frac{1}{T}$

Express as an equation

$B = \frac{k}{T}$

Make k the subject

$k = BT$

$k = 35 * 210$

$k = 7350$

When T = 40, we have:

$k = BT$

$7350 = B * 40$

Make B the subject

$B = \frac{7350}{4}$

$B = 1837.5$

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2 years ago

mrs peters bought 7 1/2 yards of fabric she needs another 4 7/8 yards how many yards of fabric does she need altogether

Nataliya [291]

7 1/2 = 15/2 = 60/8
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3 years ago

The difference of the squares of two positive consecutive even integers is 84. Find the integers.

ziro4ka [17]

Answer:

The two integers are 20 and 22.

Step-by-step explanation:

Let x be the first integer.

$(x+2)^{2}-x^{2} = 84\\x^{2} +4x+4-x^{2} = 84\\4x = 80\\x = 20$

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2 years ago

Solve the equation for x.

elena55 [62]

Answer:

the answer is x=6 for this question

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2 years ago

What is the quotient of....

Phantasy [73]

The answer is x-2 plz give brainliest and good luck!

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