3 years ago

Help me please just say which one?

Mathematics

1 answer:

lesantik [10]3 years ago

7 0

C. i have only seen this method on checks

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Fill in the blanks 3 over 8 = 15 over something

Viktor [21]

$\frac{3}{8}= \frac{15}{x} \\ \frac{3}{8} \frac{*5}{*5}= \boxed{\frac{15}{40}}$

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4 years ago

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My ice chest is at -79 degrees Celsius. What would it convert into Fahrenheit

Ghella [55]

Answer:

it's cold as heck

Step-by-step explanation:

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3 years ago

What is the answer for this?

OLEGan [10]

Answer:

I'm not so sure but I know that you have to multiply all the numbers... so that should be 689.04

Step-by-step explanation:

I hope that helped

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3 years ago

X-4.88=-5.78 solve for x

lana [24]

Answer:

-0.9

Step-by-step explanation:

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3 years ago

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The sum of the base and height of a triangle is 14 cm. Which of the following equations could be used to find the maximum area o

Montano1993 [528]

Answer:

Step-by-step explanation:

Let the base of the triangle be b and the height be h.

The sum of the base and height is 14. Thus:

$b+h=14$

Recall that the area of a triangle is given by:

$\displaystyle A=\frac{1}{2}bh$

From the first equation, solve for either variable:

$h=14-b$

Substitute:

$\displaystyle A=\frac{1}{2}b(14-b)$

Distribute:

$\displaystyle A=\frac{1}{2}(14b-b^2)$

Distribute:

$\displaystyle A=-0.5b^2+7b$

Let b = x. Hence:

$A=-0.5x^2+7x$

Therefore, our answer is B.

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3 years ago