2 years ago

Please help!! Will mark and star!!

Mathematics

1 answer:

Kamila [148]2 years ago

3 0

The answer is B. please mark me as brainlyest.

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MULTIPLE CHOICE A triangle has an angle that measures 41° and an angle

m_a_m_a [10]

Answer:

117

Step-by-step explanation:

Sum of all the angles of a triangle is 180

Let the third angle be 'x'

41 + 22 + x = 180

63 + x = 180

x = 180 - 63

x = 117

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2 years ago

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Graph these equations:<br> x + 3y = 6<br> x + 3y = 9

Evgen [1.6K]

I don’t know if you can see this but I hope it does if u don’t understand let me know so I can explain!

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2 years ago

At a school fair, students were challenged to hit one of the small congruent circles on the large rectangular board with a ball.

shtirl [24]

Answer:

~4.7%

Step-by-step explanation:

Area of the rectangle: 35*52=1820

Area of 1 small circle: A=πr2=π·32≈28.27433

28.27433*3=84.82299

84.82299/1820=0.04660603846

Therefore, about 4.7%

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2 years ago

Use the diagram to solve. What is 260% of 6

Serga [27]

Answer:

15.6

Step-by-step explanation:

because 6×2.60

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3 years ago

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Catherine Chao, Director of Marketing Research, is evaluating consumer acceptance of a new toothpaste package. She plans to use

Allisa [31]

Answer: 323

Step-by-step explanation:

The formula to calculate the sample size for proportion is given by :_

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2$

Given : Significance level : $\alpha: 1-0.95=0.095$

Critical value : $z_{\alpha/2}=1.96$

Margin of error : $E=0.05$

The proportion of successes : $p=0.70$

Now, the required sample size will be :-

$n=0.70(0.30)(\dfrac{(1.96)}{0.05})^2=322.6944\approx323$

Hence, the minimum required sample size = 323

8 0

3 years ago