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3 years ago

Find the missing angle measurement in each set of supplementary angles.

Mathematics

2 answers:

dexar [7]3 years ago

8 0

Supplementary angles form 180°. Let's take the missing angle as 'x'.

54° + x° = 180°

x = 180° - 54°

x = 126°

=》 Angle LJK = 126°

______

RainbowSalt2222 ☔

serious [3.7K]3 years ago

3 0

Answer:

126°

Step-by-step explanation:

180-54 = 126

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The mapping diagram shows a functional relationship

Gre4nikov [31]

Answer:

$f(4)=\frac{1}{2}$

f(x) = 4 when x is 8

Step-by-step explanation:

Domain is the set of x values that make the function defined. Allowed x values for the function (mapping).

The Range is the set of y values that make the function defined. Allowed y values for the function (mapping).

Whenever we need to find f(a), suppose, then we look for "a" in the domain and see its corresponding value mapping in the range.
Whenever we will be given a value for f(x) = a, suppose, and we have to find "x", we look at the value a in the range and find corresponding x value in the domain.

Firstly, we need f(4), so we look for "4" in domain and see which number it corresponds to in range.

That is $\frac{1}{2}$

Thus,

$f(4)=\frac{1}{2}$

Next,

We want "x" value that gives us a "y" value of 4. We look for "4" in the range and see which value it corresponds to. That is "8". So,

f(8) = 4

8 0

4 years ago

Cheryl has $56 and wants to buy as many notebooks as she can to donate to her school. If each notebook costs $1.60, which inequa

natka813 [3]

The answer is B because n is equal to the number of notebooks. you can not exceed the amount of money that you have to buy the notebooks

8 0

3 years ago

Read 2 more answers

Questions on a statistics exam are considered good questions provided the questions discriminate between students who have studi

avanturin [10]

Answer:

D. None of the these are correct.

Step-by-step explanation:

Hello!

The students of a statistic class were separated in two groups for an exam (those who studied - groups 1- and those who didn't study- group 2-) after the exam the proportions of students that passed in both groups were calculated and a 95% CI for the difference of proportions was obtained: (-0.005,0.125)

If the parameter estimated was p₁ - p₂

If the questions discriminated between the students that studied and the students that did not study, then the proportions of both groups should be different, then the hypotheses are:

H₀: p₁ - p₂=0

H₁: p₁ - p₂≠0

To use a CI to decide over a hypotheses pair several conditions should be met:

1) The hypothesis should be two.tailed.

2) Both the hypothesis and the interval should study the same parameter.

3) The confidence level and significance level should be complementary, meaning if the interval was constructed with 1 - α: 0.95 then the test should be made with a level of α: 0.05.

If the conditions are met, then you can decide using the following rule:

If the CI contains the value stated in the null hypothesis, the decision is to not reject the null hypothesis.

If the CI doesn't contain the value stated in the null hypothesis, then the decision is to reject the null hypothesis.

Since "zero" is contained by the given interval, the decision is to not reject the null hypothesis. The at 5% confidence level you can conclude that the questions didn't discriminate between the students that studied and the students that didn't study.

I hope it helps!

4 0

3 years ago

I need help solving this

Gemiola [76]

Since the graphic shows you that both angles across from both of the sides are equal we can tell that both sides are equal.
Now to solve for the variable all you need to do is make an equation where both of the sides are equal to each other.
So...8x - 12 = 12x - 18
Now to solve you need to get rid of the constants, or regular numbers. To do this, add 12 to both sides.
So...8x = 12x - 6
Next, you need to move the variable to one side, do this by subtracting 12x from both sides.
So... -6x = -6
Finally, divide both sides by -6 to get what the variable equals.
So...x = 1
Your final answer is both sides equal 1 in.

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3 years ago

If two lines are perpendicular and one has a slope of -, what is the slope of the other line?

prisoha [69]

A. 7 because the recipricle and 7 over 1 is just 7.

5 0

4 years ago

Read 2 more answers