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joja [24]
2 years ago
14

Find the circumference of circle with r=28cm​

Mathematics
1 answer:
motikmotik2 years ago
4 0
ANSWER

C≈175.93cm
r Radius 28

let me know if this helps if it didn’t don’t give me any points
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The centroid of a triangle is found by constructing the _____.
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Let log P/N=8 and log M/N=5<br><br> What is the relationship between P and M?
Radda [10]
Want to use some of the algebra rules of log's:

log(a)-log(b)= log(a/b),

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If log here means basis 10, decimal logarithm, then P/M = 10^3 = 1000.
8 0
3 years ago
A dog trainer has 104 ft of fencing that will be use to create a rectangular work area for dogs. If the trainer wants to enclose
Andrews [41]

Answer:

The dimensions of the work area are 16 ft by 36 ft

Step-by-step explanation:

Let

x ----> the length of the work area in feet

y-----> the width of the work area in feet

we know that

The perimeter of the work area is equal to

104=2(x+y)

simplify

52=(x+y)

y=52-x ----> equation A

The area of the work area is equal to

576=xy ---> equation B

substitute equation A in equation B

576=x(52-x)

576=52x-x^2

x^2-52x+576=0

solve the quadratic equation by graphing

using a graphing tool

The solutions are

x=16 ft, y=36 ft

or

x=36 ft, y=16 ft

see the attached figure

therefore

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6 0
3 years ago
Twice the sum of a number and 3 times a second number is 4. The difference of ten times the seco
34kurt

Two numbers that gives twice the sum of a number and 3 times a second number is 4. The difference of ten times the second number and five times the first is 90 are -10  and 4

Given :

Twice the sum of a number and 3 times a second number is 4. The difference of ten times the second number and five times the first is 90.

Let a  and b be the two  unknown numbers

Lets frame equation using the given statements

Twice the sum of a number and 3 times a second number is 4.

2(a+3b)=4\\a+3b=2

the difference of ten times the second number and five times the first is 90

10b -5a=90\\Divide \; by \;5 \\2b-a=18

Now use these two equations to solve a  and b

a+3b=2\\-a+2b=18

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a+3b=2\\-a+2b=18\\--------------------------\\5b=20\\b=4

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Learn more :  brainly.com/question/13856304

4 0
2 years ago
What percent of 287.5 is 46
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46/287.5 = .16
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