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3 years ago

Evaluate the expression. × , when =13 and =12

Mathematics

2 answers:

densk [106]3 years ago

7 0

Answer:

The answer you would be looking for is 156

Step-by-step explanation:

If M=13 and N=12 then it would just be 12x13 I hoped this helped

fredd [130]3 years ago

7 0

The answer is C! it’s 156

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What does 2miles=yards?

KiRa [710]

2 miles = 3520 yards.

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3 years ago

4x-y, when x=5 and y=6

Akimi4 [234]

4x-y
x= 5
y= 6

replace in the ecuation above:
4•5-6= 20-6= 14

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4 years ago

Read 2 more answers

The surface area of a sphere is 275.56 1 cm? What is the approximate volume of the sphere?

skad [1K]

Answer:

$V=430.19\ cm^3$ or $V=136.93\pi\ cm^3$

Step-by-step explanation:

The surface area of a sphere is:

$A_s=4\pi r^2$

Where r is the radius of the sphere

In this case we know that $A_s = 275.561\ cm^2$

$4\pi r^2=275.561$

We solve the equation for r

$4\pi r^2=275.561\\r^2 = \frac{275.561}{4\pi}\\\\r=\sqrt{ \frac{275.561}{4\pi}}\\\\r=4.683\ cm$

Now we know the radius of the sphere.

The volume of a sphere is:

$V=\frac{4}{3}\pi r^3$

We substitute the value of the radius in the formula

$V=\frac{4}{3}\pi (4.683)^3$

$V=430.19\ cm^3$

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4 years ago

A winery has a vat with two pipes leading to it. the inlet pipe can fill the vat in 44 ?hours, while the outlet pipe can empty i

lapo4ka [179]

Rate of fill-up = 1/44 = 1/44 * 77/77 = 77/3388

Rate of emptying = 1/77 = 1/77 * 44/44 =44/3388

Combined Rate of Fill-up = 77/3388 - 44/3388 = 33/3388 = 3/308

Time for combined fill-up = 308/3 = 102.6667 hours = 102 hours and 40 minutes

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3 years ago

Combine like terms<br> 1.5x + 3y + 5 + 4x + 3y + y + 8

Komok [63]

Answer:

9x+7y+13

Step-by-step explanation:

add all the x's, y's, and no exponents together

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3 years ago