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3 years ago

If you know the diameter of a circle, which statement describes how to find the area?

2 answers:

7 0

Well to find the area of a circle Pie times r^2. But If you already have the diameter, you could either split the diameter in half, and do the regulaur formula, OR you could ude this formula ----> Pie times The diameter

Vikki [24]3 years ago

6 0

Correct... A=pi*d or R squared.

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Carlos used 6 boards to build 2/3 of a front porch. How many boards will Carlos use to build the whole porch? Express your answe

antiseptic1488 [7]

Answer:

9 boards

Step-by-step explanation:

2/3 of the porch= 6 boards

so to figure out how much one third of the porch needs you find half of what it takes to fill in 2/3 of the porch and you get 3.

so 3=1/3 of the porch

then you simply do 3times 3 or 3+3+3 and you get 9

so it takes 9 boards to fill the whole porch

8 0

3 years ago

Help me please ASAP ......

Dvinal [7]

4. 3(y + 4y) this is distributive property! Hope it helps. Btw can you please check out a question on my page? thanks!! <span />

5 0

3 years ago

Please help me! The answer choices are included in the picture.

Murljashka [212]

Answer:

Step-by-step explanation:

Let's just look at the point G(3) = 3

this point only occurs through one equation which is

g(x) = (1/3)x^2

4 0

3 years ago

Read 2 more answers

Kayla got 3 out of the 60 questions in her review packet incorrect. What percent of the questions did she get incorrect?

Akimi4 [234]

Answer:

5 %

Step-by-step explanation:

3/60 x 100% = 5 %

7 0

3 years ago

Read 2 more answers

A job candidate at a large job fair can be classified as unacceptable, provisional, or acceptable. Based on past experience, a h

svp [43]

Answer:

chisquare = 31.667

degree of freedom = 2

Step-by-step explanation:

Formula for chisquare test = (O-E)²/E

total number observations= 60 + 25 + 15 = 100

Estimated E,

80% x 100 = 80

15%x100 = 15

5% x 100 = 5

chisquare =

$\frac{(60-80)^{2} }{80} +\frac{(25-15)^{2} }{15}+\frac{(15-5)^{2} }{5}\\$

= 5 + 6.67 + 20

= 31.667

from the calculation above the value of the chisquare statistic = 31.67

the degree of freedom is the number of samples in the test n - 1

= 3-1

= 2

I have solve this question also in a tabular form to aid understanding in the file i uploaded.

thank you and good luck!

4 0

3 years ago