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2 years ago

I need help please. Second box= feet or square feet

Mathematics

2 answers:

aalyn [17]2 years ago

8 0

To find four circumference we have to do πd as this is the law and in this scenario we are given the actual diameter which is 10 and 10π is 31.4 to 1dp.

The approximate would be 3.14 times by 10 which would make 31.4 and both my exact and approximates are close.

So the exact answer is 31.4

And approximate is 31.4

asambeis [7]2 years ago

6 0

Answer: 2.) 31.41 feet 1.)

Step-by-step explanation:

1.) Divide the diameter in half, to get the radius.

10 / 2 = 5

2.) Use the circumference of a circle equation, 2 $\pi$ r.

2 $\pi$ (5) ≈ 31.41 feet

3.) Remember that circumference is not in square feet, as it is the length of the perimeter of the circle, not an area.

4.) To get the exact circumference, convert 31.41 to radians.

31.41( $\pi$ / 180) = 0.548207918

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Adrian jogs 3\4 mile each morning.How many days will it take him to jog 3 miles? Plz help

zubka84 [21]

It would take Adrian 4 days, if you add 3/4 four times all together you will end up with 12/4. Then you have to simplify it, getting the answer 3. Hope this helped! :)

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3 years ago

Please hurry simplify the expression (15^1/5)^5

Lelu [443]

Answer:

Step-by-step explanation:

using the rule of exponents

$(a^m)^{n}$ = $a^{mn}$

$(15^{\frac{1}{5)} } ^{5}$ = $15^{(1/5(5))}$ = $15^{1}$ = 15

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2 years ago

The height of a wooden pole, h, is equal to 15 feet. Ataut wire is stretched from a point on the ground to the top of the pole.

Taya2010 [7]

The question is incomplete. Here is the complete question:

The height of a wooden pole, h, is equal to 15 feet. A taut wire is stretched from a point on the ground to the top of the pole. The distance from the base of the pole to this point on the ground, b. is equal to 8 feet. What is the length of the wire?

Answer:

Length of wire = 17 feet

Step-by-step explanation:

Given:

The height of the wooden pole is, $h=15\ ft$

The distance from the base of the pole to this point on the ground is, $b=8\ ft$

Let the length of the wire be 'l'.

Now, consider the triangle formed by the pole, the base, and the wire. The length of the wire is the slant length and hence the hypotenuse of the triangle.

Using Pythagorean theorem, we can find the hypotenuse.

$(Hypotenuse)^2=(height)^2+(base)^2\\l^2=h^2+b^2$

Plug in the given values and solve for 'l'. This gives,

$l^2=15^2+8^2\\\\l^2=225+64\\\\l^2=289\\\\l=\sqrt{289}\\\\l=\pm17$

As length can never be negative, we ignore the negative result.

Therefore, the length of the wire is 17 feet.

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3 years ago

What is the volume of the prism below?

Tju [1.3M]

B. 75

First you find the area of the triangle:

(base x height)/2
(3 x 5)/2
15/2
7.5

Then you multiply by the length of the prism (10):

7.5 x 10 = 75

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3 years ago

Express the calculation “four times as large as 124+645”

Effectus [21]

The calculation of the expression “four times as large as 124+645” end up in 1141.

Step-by-step explanation:

The question is asked to Express the calculation “four times as large as 124+645”.
The given statement can be written in the expression form to perform the calculations.

Here, the phrase 'four times' represents the multiplication of 4.

⇒ “four times as large as 124+645” = 4(124) + 645

So, the first step is to multiply 4 with 124.

⇒ 4 × 124

⇒ 496

The expression is now modified as “496+645"

We know that, the final result is the addition of the two numbers 496 and 645 which is calculated as

⇒ 496+645

⇒ 1141

Therefore, the calculation of the expression “four times as large as 124+645” end up in 1141.

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3 years ago