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kumpel [21]
3 years ago
9

Pls I really need help with this

Mathematics
1 answer:
Sphinxa [80]3 years ago
8 0

B is the answer.............

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Find the circumference
notsponge [240]

Answer:

31.42 \: cm

Step-by-step explanation:

C=\pi d

C=2\pi r

C=2\pi \times 5

C=10\pi

C=31.41592...

5 0
3 years ago
Read 2 more answers
-5+(-3).I know the answer is -8 but how because a negative plus a negative is a positive.
ira [324]

Answer:

“two negatives = positive” rule works for multiplication and division.

Step-by-step explanation:

-5 + (-3) example

imagine a number line with 0 in the center. From (0) You move left 5 places to (-5) on the number line. Now you move another 3 more to the left (-3) and land on (-8).

You are combining the negatives. I hope this helps.

8 0
2 years ago
H(t)=480t-16t^2<br><br> solve for t <br><br> PLEASE SHOW WORK
Andru [333]

Answer:

x = √30 or -√30

Step-by-step explanation:

480 - 16x^2 = 0

divide both sides by 16

30 - x^2 = 0

-x^2 + 30 = 0

-x^2 = -30

X^2 = 30

x = ± √30

x = √30 or -√30

7 0
3 years ago
HDTV screens usually have a width-to-heigh ratio of 16:9. Which screen dimensions are in the same proportion?
Lana71 [14]

Answer:

4: 3

Step-by-step explanation:

In this case, we have that there is a relationship between width and height, which is 16: 9, which means that any screen that has the same ratio would be an identical screen.

How would we do this? it must either be raised to a power or rationalized on both sides of the ratio.

If we raise to a power, it would give very large dimensions for an HDTV, therefore, it is best to remove the square root on both sides, since it has more common values for a TV.

\sqrt{16} :\sqrt{9}

4: 3

Therefore, a 4: 3 screen is a good choice for an HDTV with the same ratio.

5 0
3 years ago
A truck has a total of b pounds of fruit in n identical boxes. How many
inysia [295]
The answer would be about
4 0
3 years ago
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