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Reil [10]
3 years ago
5

PLEASE HELP I NEED THE ANSWER FOR NUMBER 2 AND NUMBER 3

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
8 0

Answer:

Hello!

answer: number 2 is a supplementary angle

answer: number 3 is complementary angle

Hope that helps!

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This is what I meant on my last question. sorry​
Zigmanuir [339]

Answer:

its C

Step-by-step explanation:

4 0
3 years ago
HELP HOW DID JEB FOUND 22 AS X? NEED EXPLANATION RIGHT NOW!!!
malfutka [58]
He assumes that 60-x and 2x-6 are vertical angles, so he equated these two expressions.
60-x=2x-6
60+6=2x+x
66=3x
x=22
6 0
2 years ago
The law of cosines is used to find the measure of Z.
Shtirlitz [24]

Answer:

C. Z=51^{\circ}

Step-by-step explanation:

We have been given a triangle. We are asked to find the measure of angle Z using Law of cosines.

Law of cosines: c^2=a^2+b^2-2ab\cdot \text{cos}(C), where, a, b and c are sides opposite to angles A, B and C respectively.

Upon substituting our given values in law of cosines, we will get:

16^2=19^2+18^2-2(19)(18)\cdot \text{cos}(Z)

256=361+324-684\cdot \text{cos}(Z)

256=685-684\cdot \text{cos}(Z)

256-685=685-685-684\cdot \text{cos}(Z)

-429=-684\cdot \text{cos}(Z)

\frac{-429}{-684}=\frac{-684\cdot \text{cos}(Z)}{-684}

0.627192982456=\text{cos}(Z)

\text{cos}(Z)=0.627192982456

Now, we will use inverse cosine or arc-cos to solve for angle Z as:

Z=\text{cos}^{-1}(0.627192982456)

Z=51.1566718^{\circ}

Z\approx 51^{\circ}

Therefore, the measure of angle Z is approximately 51 degrees.

6 0
3 years ago
Read 2 more answers
6.5 cups equals how many fluid ounces
Diano4ka-milaya [45]
It would equal 52 fluid ounces
5 0
3 years ago
Which phase of inferential statistics is sometimes considered to be the most crucial because errors in this phase are the most d
Alex_Xolod [135]

The phase of inferential statistics which is sometimes considered to be the most crucial because errors in this phase are the most difficult to correct is "data gathering".

<h3>What is inferential statistics?</h3>

Inferential statistics are frequently employed to compare treatment group differences.

Some characteristics of inferential statistics are-

  • Inferential statistics compare treatments groups and make conclusions about the greater population of participants using measures from the experiment's sample of subjects.
  • Inferential statistics aids in the development of explanations for a condition or phenomenon.
  • It enables you to draw conclusions on extrapolations, which distinguishes it from descriptive statistics, which simply summarize the information that has been measured.
  • There are numerous varieties of inferential statistics, each with its own set of research design & sample characteristics.
  • To select the correct statistical test of their experiment, researchers should reference the numerous texts about experimental design and statistics.

To know more about the inferential statistics, here

brainly.com/question/4774586

#SPJ4

7 0
2 years ago
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