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Digiron [165]
3 years ago
15

Two angles are given M angle g = (2x-90) M angle h=(180-2x) Which statements are true about angle G and angle H it's both angles

are greater than zero?Select all that apply.
Mathematics
1 answer:
shtirl [24]3 years ago
8 0

Answer:

angle g and h are complementary angles.

Step-by-step explanation:

Given the angles

g = (2x-90

h = 180 - 2x

Taking the sum of the angles

g + h = 2x- 90 + 180 - 2x

g + h = 2x - 2x - 90 + 180

g = h = -90+ 180

g + h = 90degrees

Since complementary angles are angles that their sum id 90degrees, hence  angle g and h are complementary angles.

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A survey of 1 comma 558 randomly selected adults showed that 522 of them have heard of a new electronic reader. The accompanying
sineoko [7]

Answer with explanation:

Let  p be the proportion of adults have heard of the new electronic reader.

Given claim : The accompanying technology display results from a test of the claim that 38​% of adults have heard of the new electronic reader.

i.e. p=0.38

Then , the set of hypothesis will be :-

H_0: p=0.38\\\\H_a:p\neq0.38

Since, the alternative hypothesis is two tailed , so the test is two-tailed test.

Also, it is given that the sample size : n=1558

Number of adults showed that they have heard of a new electronic reader=522

So the sample proportion for adults have heard of the new electronic reader : \hat{p}=\dfrac{522}{1558}\approx0.34



The test statistic for proportion is given by :-

z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}\\\\\\\Rightarrow\ z=\dfrac{0.34-0.38}{\sqrt{\dfrac{0.38(1-0.38)}{1558}}}\\\\\\\Rightarrow\ z=-3.25279036541\approx-3.25

By using standard normal distribution table , the P-value for two tailed test corresponds to the obtained z-value ==0.0011541

6 0
3 years ago
Find the answer <br><br> A.<br><br> B.<br><br> C.
KATRIN_1 [288]
B. 68
I use the formula A= bh/2 it’s the same thing
8x17 = 136
136/2 = 68
6 0
3 years ago
Please help me with this
natali 33 [55]
Your answer would be 5


8 0
3 years ago
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How many sides does a regular (equal sides and equal angles) polygon have if each exterior angle measures 24°? # of sides =?
lubasha [3.4K]
If the measure of each exterior angle is 24, the measure of each interior angle is then 180-24=156
the sum of the interior angles of a polygon is (n-2)*180, n is the number of sides
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Please help correct answer gets brainliest​
umka2103 [35]

can you send the question on here or put the camera closer because i cant see that and i would like to help.

4 0
3 years ago
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