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3 years ago

Circumference of the circle as 15 pi inches find the diameter

1 answer:

4 0

The formula for the circumference of the circle is 2πr or πd with r being the radius and d being the diameter. These 2 gives the same result because d=2r

Now because we know that the circumference is 15pi, we just need to reverse to find the diameter.

π*diameter=15*π

We can divide π from both sides.

diameter=15

Hope this helped!

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Find the value of x such that the data set has the given mean.

sineoko [7]

Answer:

127

Step-by-step explanation:

112 × 6 = 672

100 + 121 + 105 + 111 + 108 = 545

672 - 545 = 127

6 0

3 years ago

Set up and solve a system of equations to solve the problem.

NeTakaya

Answer:

The boys club sold 52 bags of hardwood mulch and 84 bags of pine bark mulch

Step-by-step explanation:

Let

x ----> the number of bags of hardwood mulch sold

y ----> the number of bags of pine bark mulch sold

we know that

A local boys club sold 136 bags of mulch and made a total of $400

$x+y=136$ ----> equation A

$3.25x+2.75y=400$ ----> equation B

Solve the system by graphing

Remember that the solution is the intersection point both graphs

Using a graphing tool

The solution is the point (52,84)

see the attached figure

therefore

The boys club sold 52 bags of hardwood mulch and 84 bags of pine bark mulch

6 0

3 years ago

Sinx + cosx= 1 then find the value of x

Kobotan [32]

$1√2sinx+1√2cosx=1√2.

This can be written as

cos(x−π4)=cos(π4)

The general solution of this equation ls

x−.π4=2nπ±π4,n=0,±1,±2,...,

So, x=2nπandx=(4n+1)π2,n=0,±1,±2,±3....

 ANSWER: x=2nπandx=(4n+1)π2,n=0,±1,±2,±3....$

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4 0

3 years ago

What is the area of this figure? <br>

polet [3.4K]

First, calculate the area of the square, which is 25

next, find the area of one half of the triangle by multiplying 2.5 and 4 (10), then dividing that by 2 (5).

since the two half’s of the triangle are symmetrical, just add 5 and 5 to get 10.

add the area of the triangle (10) and the square (25) to get the total area.

the answer should be 35

hope this helps!

4 0

2 years ago

How many chords can be there in a circle

alina1380 [7]

There is an infinite number of chords in a circle

3 0

3 years ago

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