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worty [1.4K]
2 years ago
11

What is the answer to this question 1/7・x = 1

Mathematics
1 answer:
elena55 [62]2 years ago
4 0

Answer:

x = 7

Step-by-step explanation:

We can find our answer by getting x alone.

1/7 * x = 1

Multiply 1/7 to x.

x/7 = 1

Multiply 7 to both sides to isolate x.

x = 7

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(fog) (x) = 8*(2x+1)=16x+8

Step-by-step explanation:

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A rectangular parking lot must have a perimeter of 440 feet and an area of at least 8000 square feet. Describe the possible leng
tangare [24]

Answer:

The possible parking lengths are 45.96 feet and 174.031 feet

Step-by-step explanation:

Let x be the length of rectangular plot and y be the breadth of rectangular plot

A rectangular parking lot must have a perimeter of 440 feet

Perimeter of rectangular plot =2(l+b)=2(x+y)=440

2(x+y)=440

x+y=220

y=220-x

We are also given that an area of at least 8000 square feet.

So, xy \leq 8000

So,x(220-x) \leq 8000

220x-x^2 \leq 8000

So,220x-x^2 = 8000\\-x^2+220x-8000=0

General quadratic equation : ax^2+bx+c=0

Formula : x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}

x=\frac{-220 \pm \sqrt{220^2-4(-1)(-8000)}}{2(-1)}\\x=\frac{-220 + \sqrt{220^2-4(-1)(-8000)}}{2(-1)} , \frac{-220 - \sqrt{220^2-4(-1)(-8000)}}{2(-1)}\\x=45.96,174.031

So, The possible parking lengths are 45.96 feet and 174.031 feet

3 0
3 years ago
Identify the cross section of the solid shown in the image.
jonny [76]

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Step-by-step explanation:

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What is the value of 2(x+y)² when X=3 and Y=4 ?
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98

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2 (x + y) ²

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= 2 x 7²

= 2 x 49

=  98

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3 years ago
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