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inn [45]
3 years ago
6

Help me please!! Find the value of x

Mathematics
1 answer:
frez [133]3 years ago
5 0

Answer: D

Step-by-step explanation:

Sum of adjacent angles on a straight line is 180°

x+56°=180°...

x=180°-56°

x=124°

PLEASE MARK BRAINLIEST.

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For the above right triangle, find the side length x
stira [4]

Answer:

I think that the answer to this question is the third one . I mean 29 .

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Two students are interested in whether or not there is variation in their test scores for math class. There are 15 total math te
professor190 [17]

Answer:

H_0=\sigma_1 =\sigma_2

H_a=\sigma_1 >\sigma_2

Step-by-step explanation:

From the question we are told that

Number of math tests n=15

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Generally given the two tailed test the null hypothesis is given as

H_0=\sigma_1 =\sigma_2

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4 0
3 years ago
(1.2)Consider the diagram below. Identify a point.
Fynjy0 [20]

Option B is correct. <em>Point F</em><em> is the </em><em>only point </em><em>according to the option given</em>

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From the diagram shown, we have points, plane, and line segments.

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The points are C, D, E, and F. Hence the correct option is B.<em> Point F</em><em> is the </em><em>only point </em><em>according to the option given</em>

Learn more here: brainly.com/question/13099718

6 0
3 years ago
1. Which of these transformations are isometries? The diagrams are not drawn to scale.
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(I) In here, as we can see the distances 10 and 5 and the angle 43 degrees has been preserved. So, <u>this is an isometry.</u>

(II) In here, distances have been halved, so this is<u> not an isometry</u>, even though the angles have been preserved.

(III) In here, the corresponding distances and the angles have been preserved. So, <u>this is an isometry.</u>

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3 years ago
F(X)=2x^2 +1 find and simplify:: if f(a) =19 find a.<br> Isn't a just 19??
liberstina [14]
2a^2+1=19\\&#10;2a^2=18\\&#10;a^2=9\\&#10;a=-3 \vee a=3
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