All categories

2 years ago

Please help i need to write out my work to so please tell me how to show it

Mathematics

2 answers:

myrzilka [38]2 years ago

7 0

A) C=3.14 x radius x 2 or C= 3.14 x diameter
C= 3.14 x 7 ( because diameter is already given)
C = 21.98
B) 3.14 x 9 x 2 ( r is given )
C= 28.26 x 2
C= 56.52
C) 3.14 x 5 x 2 ( r is given )
C= 31.4

Anarel [89]2 years ago

3 0

For the first one write 9 divided by 2 gives your your radius an it’s 3.5. the formula is 2 x 3.14 x radius and that gives you 21.98.

the 2nd one is 2 x 3.14 x 9 = 56.52

the 3rd is 2 x 3.14 x 5= 31.4

formula is always 2 x 3.14 (or pie) x radius

to get your radius from your diameter you do your diameter divided by 2

You might be interested in

A six-sided number cube is rolled 600 times. The results are 246 even numbers and 354 odd numbers.

Kay [80]

Answer:

Relative frequency is defined as the number of "desired" results divided by the total number of possible results. Experimental probability is defined the same way. This means that the first choice is best, the experimental probability and relative frequency are the same.

The theoretical probability, on the other hand, would be 0.5, or 300/600, which is larger than the experimental probability.

Step-by-step explanation:

3 0

3 years ago

What is the Slope of the line containing points Q(-4,-1) and T(0, 9)?

goldfiish [28.3K]

Answer:

kisses -A

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

What algebraic expression must be added to the sum of

user100 [1]

Answer:

We need to add the expression: $4x^2-16$

Step-by-step explanation:

As the first step, add the first two polynomials listed in order to find what their sum is. Do such by combining like terms:

$3x^2+4x+8\,+ (2x^2-6x+3) =5x^2-2x+11$

now, you need to find another polynomial (let's call it P(x)) such that added to the one we just found above, will render $9x^2-2x-5$ as a result.

Putting this phrase in mathematical terms, we write:

$5x^2-2x+11\,+ P(x) = 9x^2-2x-5$

Now we solve for this unknown P(x) in this equation, by subtracting each of the terms that are accompanying it on the left side of the equation. We do one at a time for clarity:

$5x^2-2x+11\,+ P(x) = 9x^2-2x-5\\-2x+11+P(x)=9x^2-5x^2-2x-5\\-2x+11+P(x)=4x^2-2x-5\\11+P(x)=4x^2-2x+2x-5\\11+P(x)=4x^2-5\\P(x)=4x^2-5-11\\P(x)=4x^2-16$

Therefore, the expression we need to add is: $4x^2-16$

8 0

4 years ago

Seven years after paying $6288 for shares in a new company, you sell the shares for<br> $12,454.

alisha [4.7K]

That’s small bucks, to answer a small problem ⚖️

4 0

4 years ago

Tom mowed lawns for the summer. In June he deposited $120 the first week, $80 the second week, and $75 the following week. Then

melisa1 [442]

So, let's add up the total amount he made:
120 + 80 + 75 = 275
If he withdrew $30:
275 - 30 = 245
Tom will have $245 at the end of June

4 0

3 years ago