1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Free_Kalibri [48]
2 years ago
15

Need help on the question 6

Mathematics
1 answer:
netineya [11]2 years ago
5 0

Answer:

d. 42 degrees

Step-by-step explanation:

y and 92 are supplemetary angles, which means they both add up to 180 since they are on the straight line.

Hence,

y+92 = 180

y = 180-92

y=88

And now we also know that all the angles of a traingle add up to 180,

so, we can simply find the x by:

88+x+50 =180

138 + x =180

x = 180-138

x = 42

Hope this helps!

Please mark brainliest if you think I helped! Would really appreciate!

You might be interested in
Evaluate f(4) if f(x) =
abruzzese [7]

Answer:

f(4) = 4

Step-by-step explanation:

We have x = 4 so we use the middle line of the piecewise function since 0≤x≤4

f(x) = x

f(4) = 4

4 0
3 years ago
Read 2 more answers
Can 5.09 be an absolute value???
Anna11 [10]
Of course.  Any positive number can be an absolute value.

5.09  is the absolute value of  +5.09  and also of  -5.09 .
8 0
3 years ago
The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the e
Korolek [52]

Answer:

A sample of 499 is needed.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is given by:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

In this question, we have that:

\pi = 0.21

90% confidence level

So \alpha = 0.1, z is the value of Z that has a pvalue of 1 - \frac{0.1}{2} = 0.95, so Z = 1.645.

How large a sample would be required in order to estimate the fraction of tenth graders reading at or below the eighth grade level at the 90% confidence level with an error of at most 0.03

We need a sample of n, which is found when M = 0.03. So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.03 = 1.645\sqrt{\frac{0.21*0.79}{n}}

0.03\sqrt{n} = 1.645\sqrt{0.21*0.79}

\sqrt{n} = \frac{1.645\sqrt{0.21*0.79}}{0.03}

(\sqrt{n})^2 = (\frac{1.645\sqrt{0.21*0.79}}{0.03})^2

n = 498.81

Rounding up

A sample of 499 is needed.

8 0
2 years ago
Could someone help me pleaseee
Savatey [412]

Answer:

a) We are given the length of both legs. We need to find the hypotenuse.

b) 40^2 + 71.5^2 = X^2

c) 40^2 + 71.5^2 =

   1600 + 5,112.25 = 6,712.25 in.

d) 6,712 inches

Step-by-step explanation:

8 0
3 years ago
Simplify the giving expression<br>(18/12 t-8)2<br>​
bekas [8.4K]

Answer:

3t - 16

Step-by-step explanation:

(18/12 t-8)*2

First simplify inside the parentheses

(3/2 t -8)*2

Then multiply

3/2t *2 -8*2

3t - 16

5 0
3 years ago
Read 2 more answers
Other questions:
  • PLEAAASE HELP! TON OF POINTS, ALL FREE FOR BRAINLIEST RIGHT ANSWER! GEOMETRY GUYSS
    11·2 answers
  • The product of a number and 4 increased by 7 is 5. What is the number?
    13·1 answer
  • Multiplying 3/sqrt 17 - sqrt 2 by which fraction will produce an equivalent fraction with a rational denominator
    11·2 answers
  • Alaska,Hawaii,Washington have active volcanoes. Alaska has 43,Hawaii has 5,and Washington has v. If hey have 52 active volcanoes
    9·1 answer
  • A sporting goods store manager was selling a ski set for a certain price. The manager offered the markdowns shown below, making
    6·1 answer
  • Average of -3,0,7,-2
    11·2 answers
  • 13x-126=162+5x what is the answer to this equation
    13·2 answers
  • Write 6x10 to the power of 2 in standard notation.
    15·1 answer
  • .
    15·2 answers
  • A machine produces 80 boxes per
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!