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3 years ago

This graph shows temperature versus time for some chemical substance as heat is added at a constant rate.

Mathematics

1 answer:

Ann [662]3 years ago

7 0

The graph shows temperature versus time for some chemical substance as heat is added at a constant rate.

As a whole the temperature of the chemical substance increases with time. But at the interval x to y the temperature did not change or it remains constant.

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Find the circumference of a circle with an area of 676pi

saveliy_v [14]

Answer:

The circumference of the circle is 52π

Step-by-step explanation:

To solve this exercise we first have to calculate the radius of the circle, for this we will use the formula of area of a circle and we will clear the radius

a = area = 676π

r = radius

a = π * r²

we clear r

r = √(a/π)

now we replace the known values

r = √(676π/π)

r = √(676)

r = 26

now we use the formula to calculate the circumference of a circle

c = π * 2r

c = π * 2 * 26

c = 52π

The circumference of the circle is 52π

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3 years ago

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Anna11 [10]

Answer:

I think number 2 is the answer, but 4 could be the answer.

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2 years ago

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After 3/4 of a minute a sloth has moved just 3/8 of a foot. what is the sloth's speed in feet per minute

Delicious77 [7]

Hello!

So 4/4 - 3/4 = 1/4 (a quarter). So we have to find a quarter of 3/8 and add it to 3/8. First of all, we have to convert 1/4 to a percentage. The answer is 25%. 3/8 as a decimal is 0.375. 25% of 0.375 = (0.25 x 0.375 =) 0.09375.
0.09375 + 0.375 = 0.46875.
Now, we have to convert 0.46875 back into a fraction.

So the answer is 5/64.

Have a great day! :)

3 0

3 years ago

I really need help asap please

gizmo_the_mogwai [7]

We can use the substitution method to solve this problem.

The second equation is $\sf y=2x$ , so we can plug in 2x for 'y' in the first equation:

$\sf 5x-2y=3$

$\sf 5x-2(2x)=3$

Multiply:

$\sf 5x-4x=3$

Combine like terms:

$\sf x=3$

This is the x-value of our solution, we can plug this into any of the two equations to find the y-value:

$\sf y=2x$

$\sf y=2(3)$

Multiply:

$\sf y=6$

This is the y-value of our solution. So our entire solution is (3, 6).

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Carmen has already taken 2 pictures at home , and she expects to take 4 pictures during every day of vacation . After 3 days of

lora16 [44]

She will take 14 pictures

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3 years ago