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2 years ago

How you find the radius of a circle

Mathematics

2 answers:

babymother [125]2 years ago

8 0

If know Diameter; Radius = Diameter ÷ 2
or
If know Circumference; Radius = C ÷ 2<span>π
</span>

Inessa05 [86]2 years ago

4 0

You find the radius by dividing the diameter by 2

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If measure of angle X = 34° and measure of angle Z = 26°, what is the measure of angle Y

AlladinOne [14]

Answer:

120

Step-by-step explanation:

180-34=146

146-26=120

6 0

3 years ago

Paul needs 3 7/8 yards of fabric to make a tablecloth. How many tableclothes can he make from 38 3/4 yard of fabric

Leviafan [203]

First turn them into improper fractions to make things easier: 31/8 and 155/4.
You would then do 155/4 divided by 31/8, and with the same-change-flip, do 155/4 times 8/31, which is 10

7 0

3 years ago

Go math chapter 3 review answerd

TEA [102]

And the question is......................

8 0

2 years ago

A population of mice is increasing exponentially. On Monday there were 120 most. One month later there were 132 most. Ready func

djyliett [7]

Answer:

$y=120 * 1.1^x$ --- function

The monthly rate is 10%

Step-by-step explanation:

Given

Let

$x \to months$

$y \to mice$

So, we have:

$(x_1,y_1) = (0,120)$ --- Monday

$(x_2,y_2) = (1,132)$ --- One month later

Required

The function

The function is represented as:

$y=ab^x$

In $(x_1,y_1) = (0,120)$ , we have:

$120 = a * b^0$

$120 = a * 1$

$120 = a$

$a=120$

In $(x_2,y_2) = (1,132)$ , we have:

$132 = a * b^1$

$132 = a * b$

Substitute: $a=120$

$132 = 120 * b$

Solve for b

$b = \frac{132}{120}$

$b = 1.1$

So, the function is:

$y=ab^x$

$y=120 * 1.1^x$

To calculate the monthly rate (r), we have:

$y =a(1 + r)^x$

Compare to: $y =ab^x$

$1 + r = b$

Make r the subject

$r = b-1$

Substitute $b = 1.1$

$r = 1.1-1$

$r = 0.1$

Express as percentage

$r = 0.1*100\%$

$r = 10\%$

5 0

2 years ago

Elena went to a store where you can scoop your own popcorn and buy as

anygoal [31]

Answers:

c=0.25p

p=4c

c=.25p

c=1/4p

Hope I' not too late -w-'

8 0

2 years ago