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3 years ago

What is the area of the given circle?

Mathematics

1 answer:

zhenek [66]3 years ago

5 0

Answer:

50.26 is the area.

Hope it helps!!!

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Choose the equation of the vertical line passing through the point (−4, 2).

Degger [83]

Vertical line has no slope. so only look at the x value. x=-4.

8 0

3 years ago

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Suppose that in a random selection of 100 colored candies, 26% of them are blue. The candy company claims that the percentage

quester [9]

Answer: a) -0.2252, b) 0.8219

Step-by-step explanation:

Since we have given that

Sample size n = 100

Probability that candies are blue = p= 0.26

Probability that company claims that it is blue candy = P = 0.27

So, Q = 1-P= 1-0.27 = 0.73

So, Null hypothesis : $H_0:p=P$

Alternate hypothesis : $H_1:p\neq P$

So, the test statistic would be

$z=\dfrac{p-P}{\sqrt{\dfrac{P.Q}{n}}}\\\\z=\dfrac{0.26-0.27}{\sqrt{\dfrac{0.27\times 0.73}{100}}}\\\\z=-0.2252$

Since α = 0.05

So, critical value of z = 1.96

p-value = P(Z>Z(calculated)

Using the excel function , we get that

$P(z>0.2252)\\\\=2\times 0.410.911845\\\\=0.8219$

Hence, a) -0.2252, b) 0.8219

6 0

3 years ago

It takes a 15-year-old tree to produce 700 grocery bags. How many 15-year-old trees would it take to produce 17,500 grocery bags

vfiekz [6]

17,500 / 700 = 25 15 year old trees you will need

Hope this helped

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3 years ago

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A realtor uses a lock box to store the keys to a house that is for sale. The access code for the lock box consists of five digit

ankoles [38]

Answer:

45,000 codes

Step-by-step explanation:

We can define that "digits" are defined to symbols 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9. There are a total of ten digits.

The problem indicates that the first digit cannot be zero, this means that there are 9 options in the first digit of the code.

For the second, third and fourth digits of the code there is no restriction, so there are 10 options for each.

For the fifth digit of the code, we can choose any even digit, so we have 5 options.

This means that there is a total of

9 * 10 * 10 * 10 * 5 = 45,000

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3 years ago

I have a math problem and it’s a word problem can someone help me

S_A_V [24]

He spent 20 minutes

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3 years ago