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
sertanlavr [38]
2 years ago
8

Please someone help me solve this i dpnt know the answer​

Mathematics
1 answer:
kozerog [31]2 years ago
4 0
<h2><u>Answer With Explanation:</u></h2>

<u>Firstly, let's start with <XOZ: =55°</u>

We know that <ZOQ is 70° and angles on a line add up to 180° so we do 180-70=110 110 divided by 2 = 55 so the 2 angles (XOZ & XOP are 55)

<u>Secondly, <OMN, <MON & <ONM = All are 60°</u>

These 2 angles are joined to create an equilateral triangle which always adds up to 180°

So, there are 3 points to this triangle, therefore we divide 180 by 3 which is 60. The angles are 60°

<u>Thirdly, <QON: =55°</u>

This angle lies on the line XON which needs to add up to 180°

As we worked out before, <XOZ was 55°

So, <ZOQ was already given as 70°

We then do 55+70=125 then 180-125=55°

<QON is 55°

(I'm only in Grade 9 LOL)

You might be interested in
Write the sentence as an equation and solve.
Arturiano [62]

Answer:

22

Step-by-step explanation:

Basically X-14-8   so  8+14=X  X=22

5 0
3 years ago
of A squirrel’s hidden nuts, for every 5 that get found, there are 3 that do not get found. A squirrel hid 40 nuts all together.
den301095 [7]

Answer:

The answer is 15

Step-by-step explanation:

because so the squirrel hid 40

so

|||||   ||| 8

|||||   ||| 16

|||||   ||| 24

|||||   ||| 32

|||||    ||| 40

so if you count the all the group of 3 that will get your answer.  

let me know if this make sense.

8 0
3 years ago
A simple association forms between two events when ___________
qaws [65]

Answer:

The events occur together

Step-by-step explanation:

A simple association forms between two events when these events occur together dependently.One event will rely on another to happen first for it to take place.In this case, the occurrence of one event influences the probability of the other event happening.

7 0
3 years ago
Olve the system of equations.
stepladder [879]
The system:
y = 3 x - 7
15 x - 5 y = 14
---------------------
Using the substitution method:
15 x - 5 · ( 3 x - 7 ) = 14
15 x - 15 x + 35 = 14
0 · x = 14 - 35
0 · x = - 21
x , y ∈ ∅
Answer:
D ) There is no solution.
3 0
3 years ago
A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 340 babies were​ born, a
Bas_tet [7]

Answer:

The 99% confidence interval estimate of the percentage of girls born is (0.8, 0.9).

b)Yes, the proportion of girls is significantly different from 0.5.

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 interval 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}.

For this problem, we have that:

In the study 340 babies were​ born, and 289 of them were girls. This means that n = 340, \pi = \frac{289}{340} = 0.85

Use the sample data to construct a 99​% confidence interval estimate of the percentage of girls born.

So \alpha = 0.01, z is the value of Z that has a pvalue of 1 - \frac{0.01}{2} = 0.995, so z = 2.575.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{340}} = 0.85 - 2.575\sqrt{\frac{0.85*0.15}{400}} = 0.80

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{340}} = 0.85 + 2.575\sqrt{\frac{0.85*0.15}{400}} = 0.90

The 99% confidence interval estimate of the percentage of girls born is (0.8, 0.9).

Does the method appear to be ​effective?

b)Yes, the proportion of girls is significantly different from 0.5.

4 0
3 years ago
Other questions:
  • Is 2340 divisible by 90
    13·1 answer
  • What is the mean of the data set below? Round to the nearest tenth when necessary.19, 21, 41, 35, 43, 57
    6·1 answer
  • Solve for k.<br>10/3=k/9​
    5·2 answers
  • Write and solve an equation. Three sevenths of a children's choir are boys. If there are 12 boys in the choir, how many children
    6·1 answer
  • What is the solution set for |-x|=-x
    9·1 answer
  • Identify a central angle in the figure.<br> A)<br> ZBCD<br> ZBFC<br> ZFAE<br> ZFCO
    7·1 answer
  • 3. y = -2x - 4<br> Slope = -2<br> y-intercept = _
    6·1 answer
  • Is this correct? If it isn’t what’s the correct answer?
    13·2 answers
  • BRAINLIEST TO WHOEVER ANSWERS CORRECLTY
    9·2 answers
  • What is the volume of a football in cm³​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!