All categories

2 years ago

The angle measures of a triangle are shown in the

Mathematics

2 answers:

Zepler [3.9K]2 years ago

7 0

Answer:

C. 30

Step-by-step explanation:

2x = 60

x = 30

Also because the right angle of a triangle which is the angle where (2x) is at is equal to 90 degrees always, so since one of the angles is 60 the other will be 30 because the three angles of a triangle add up to 180 degrees:

90 + 60 = 150

180 - 150 = 30

Alenkasestr [34]2 years ago

6 0

b is the correct answer u got it

You might be interested in

Name one addition piece of information that is sufficient to prove that the triangles are similar. Please explain!

Sophie [7]

Answer:

the given triangles are right triangles which is enough to prove them 'similar'

but not congruent.

8 0

3 years ago

There are 12 marbles in a box. 8 are purple, and 4 are green. What is the probability of picking a purple marble and then a gree

Bad White [126]

Answer: 8/33

Step-by-step explanation:

So the probability of picking a purple marble is 8/12, after that there are 11 marbles left in the box

Now the probability of picking a green marble without placing the first marble back is 4/11

So the probability of doing both is 8/12 x 4/11 = 8/33

8 0

1 year ago

In order to estimate the average time spent on the computer terminals per student at a local university, data were collected fro

VladimirAG [237]

Answer:

Margin of error for a 95% of confidence intervals is 0.261

Step-by-step explanation:

Step1:-

Sample n = 81 business students over a one-week period.

Given the population standard deviation is 1.2 hours

Confidence level of significance = 0.95

Zₐ = 1.96

Margin of error (M.E) = $\frac{Z_{\alpha }S.D }{\sqrt{n} }$

Given n=81 , σ =1.2 and Zₐ = 1.96

Step2:-

 $Margin of error (M.E) = \frac{Z_{\alpha }S.D }{\sqrt{n} }$ 

 $Margin of error (M.E) = \frac{1.96(1.2) }{\sqrt{81} }$ 

On calculating , we get

Margin of error = 0.261

Conclusion:-

Margin of error for a 95% of confidence intervals is 0.261

4 0

3 years ago

7/10x4/5 in its simplest form

Fantom [35]

Answer:

14/25

Step-by-step explanation:

7/10 x 4/5

28/50

14/25

8 0

3 years ago

All numbers less than or equal to 22

alekssr [168]

Answer:

x ≤ 22

Step-by-step explanation:

≤ means less than or equal to

≥ means greater than or equal to

4 0

2 years ago

Read 2 more answers