4 years ago

What is the measure of a base angle of an isosceles triangle if the vertex angle measures 38?

Mathematics

1 answer:

sergey [27]4 years ago

8 0

Answer: x=71

Step-by-step explanation:

38 + x + x = 180

2x = 180 - 38

2x = 142

x = 142/2

x = 71

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Sophia uses 18 beads to make a necklace. Three sixths of the beads are purple. How many beads are purple?

tatuchka [14]

Answer:

9 beads are purple

Step-by-step explanation:

we know that

To find out how many beads are purple, multiply the total beads by the fraction of the beads that are purple

$18(\frac{3}{6})=9\ beads$

therefore

9 beads are purple

Another way to solve the problem is convert the fraction in percentage

we have

$\frac{3}{6}=\frac{1}{2}=0.50*100=50\%$

If the total are 18 beads

50% is 9 beads

therefore

9 beads are purple

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notka56 [123]

Here,
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4 years ago

A Statistics class has a test average of 87 with a standard deviation of 2.1. Find the z-score that corresponds to Kate's test s

Leto [7]

Answer:

2.86

Step-by-step explanation:

So I'm pretty sure we don't want the probability, just the zscore

to find the zsore subtract the mean and divide by the standard deviation

(93-87)/2.1= 2.86

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3 years ago

PLEASEEEE HELP ME ITS FOR AN IMPORTANT TEST AND I WAS NOT PAYING ATTENTION LOL

hichkok12 [17]

Answer: 3^2 * 3^8

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2 years ago

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Finding missing angles

Zolol [24]

Answer:

Step-by-step explanation:

$x \degree = 95 \degree \\(vertical \: angles) \\ \\ x = 95$

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3 years ago