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2 years ago

What is the arc length of the crust of half of a pizza that is 6 inches in diameter? show all work

1 answer:

6 0

First, you find the circumference of the full pizza.
C=d * pi
C=6pi
Then you divide it by two, because it is half of a pizza.
C=3pi

Therefore, the arc length of the crust of half a pizza is 3pi inches.

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Please help me!!!!!!!

miv72 [106K]

Answer:

Is A I think

Step-by-step explanation:

I hope this was helpful I did it on my book :)

7 0

3 years ago

What is the equation of the line that is perpendicular to y=2/3x-5 and passes through (6,-1)?

riadik2000 [5.3K]

Answer: 2y + 3x - 16 = 0

Step-by-step explanation:

Equation of the line is y = 2x/3 - 5

From the equation , the slope m₁ = 2/3. therefore recall, from condition for perpendicularity, m₁m₂ = -1

The product of their gradient must be (-1).

Now since m₁ = 2/3 and m₁m₂ =-1

2m₂/3 = -1

Therefore , m₂ = -3/2.

Since the equation passes through the coordinate of (6,-1)

we now substitute for x and y in the equation of a line to get the y intercept (c)

y = mx + c

-1 = -3x/2 +c

-1 = -3/2 x 6 + c

-1 = -9 + c

-1 + 9 = c

Therefore c = 8

Now to get the equation of line that is perpendicular to y = 2x/3 - 5

y = -3x/2 + 8

making it a linear equation,

2y = -3x + 16

2y +3x - 16 = 0

6 0

3 years ago

Use the ratio table to find the unit rate with specified units.

olasank [31]

It’s 10.5 I’m pretty sure

3 0

2 years ago

Read 2 more answers

b. Find a 99% confidence interval for mean age of ICU patients using the facts that, in the sample, the mean is 57.55 years and

rjkz [21]

Answer:

99% of confidence intervals for mean age of ICU patients

(53.8920 , 61.2079)

Step-by-step explanation:

Explanation:-

Given sample mean $x^{-} = 57.55$

Given standard error is determined by

S.E = $\frac{S.D}{\sqrt{n} }$

Given data standard error = 1.42

99% of confidence intervals for mean is determined by

$(x^{-} - Z_{0.01} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.01} \frac{S.D}{\sqrt{n} } )$

$Z_{\frac{\alpha }{2} } = Z_{\frac{0.01}{2} } = Z_{0.05} = 2.576$

$(x^{-} - 2.576 S.E , x^{-} + 2.576 S.E)$

$(57.55 - 2.576X 1.42 , 57.55+ 2.576 X1.42)$

(53.8920 , 61.2079)

Conclusion:-

99% of confidence intervals for mean is determined by

(53.8920 , 61.2079)

5 0

3 years ago

In the table, Pattern A uses the rule "add 16" and Pattern B uses the rule "add 4."

Elena-2011 [213]

Answer:

The answer is number 3

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers