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3 years ago

For each situation, decide whether you would need to find the circumference or area and explain why.

Mathematics

1 answer:

kenny6666 [7]3 years ago

7 0

Answer:

i need pionts bbut it is b

Step-by-step explanation:

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Will

Jet001 [13]

Answer:

b=3.1cm

Step-by-step explanation:

2a+b=15.7

a=6.3

2*6.3+b=15.7

12.6+b=15.7

b=3.1cm

3 0

4 years ago

In the continental United States the ratio of states that border an ocean to strays that don't border an ocean is 7:9. How many

lidiya [134]

21 states

so there are 48 states in the continental US and 7+9=16 which is a third of 48, so you have to multiply the numbers by 3

6 0

3 years ago

A birdhouse and the pole that it is on cast a shadow 15 feet long. If a person standing nearby casts a shadow 5 feet long, and t

Viefleur [7K]

Answer:
12
Step-by-step explanation:
15 feet total amount combined by pole and
birdhouse
4 foot tall person makes 5 feet long
shadow
5×3=15
4x3=12 so the birdhouse and pole are 12
feet
THANKS!

6 0

3 years ago

How many dollars will it cost to buy 24 nails

Sergio [31]

The answer is B. 2m/5

60 nails cost m dollars
60nails = m dollars
so 1 nail = m / 60
so for 24 (m/60) * 24 = 2m/5

5 0

3 years ago

Read 2 more answers

Hershel is designing a square pyramid that needs to have a lateral surface of 440 in². The area of the base is 121 in². Find the

Snowcat [4.5K]

Answer:

The length of the slant height of the square pyramid is 20 in.

Step-by-step explanation:

The lateral surface area of a regular pyramid is the sum of the areas of its lateral faces.

The general formula for the lateral surface area of a regular pyramid is

$A=\frac{1}{2}pl$

where $p$ represents the perimeter of the base and $l$ the slant height.

From the information given we know that:

The lateral surface area of a square pyramid is 440 in².
The area of the base is 121 in².

And we want to find the the slant height of the pyramid.

For this, we also need to know that the area of a square is given by $A=s^2$ , where <em>s</em> is the length of any side and the perimeter of a square is given by $p=4s$ .

Applying the formula for the area of a square we can find the length of the side

$121=s^2\\s^2=121\\s=\sqrt{121}=11$

The perimeter of the base is

$p=4\cdot(11)=44$

Next, we can apply the formula for the lateral surface area and solve for $l$ the slant height.

$440=\frac{1}{2}44l\\\\\frac{1}{2}\cdot \:44l=440\\\\22l=440\\\\l=20$

The length of the slant height of the square pyramid is 20 in.

4 0

4 years ago