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Gre4nikov [31]
2 years ago
9

Please help me figure this out :"D​

Mathematics
1 answer:
PSYCHO15rus [73]2 years ago
4 0

Hello! In order to solve the first problem, you need to know the properties of a rhombus.

Some basic rules that apply to the problem you should know are:

  • All sides of a rhombus are equal, however, a rhombus consists of two angles.
  • Opposite angles are congruent.
  • Adjacent angles are supplementary.
  • Diagonals intersect each other at 90 degrees.
  • Diagonals bisect the opposite interior angles.
  • All angles of a rhombus will always add up to 360 degrees.

To be congruent, line segments must be equal in length. The same rule applies to angles, they must be of equal measure.

This being said,

1. HT is congruent to MA

2. ST is congruent to MS

3. AMH is congruent to ATH

4. If angle MHT is 80 degrees, than angle MAT is 80 degrees as they are vertical (opposite) angles. This means they are always congruent.

5. If line MH = 9, then due to congruency AT must equal 9.

A square is 360 degrees. Every line is equal, every angle is equal.

There are four right angles in a square. A right angle equals 90 degrees.

Since every line has the same length, they are all congruent.

1. True

There are no angles less or more than 90 degrees in a perfect square.

2. False

KD and IN are not perpendicular since they do not intercept. They are parallel.

3. False

Every angle in a perfect square is 90 degrees.

4. True

You can draw out lines to get a better perception of KN and ID. They are congruent due to properties of a square.

5. True

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For the equation -4y = 8x , what is the constant of variation?
Inga [223]
-4y = 8x

Divide both sides by -4

y = -2x

This is in the form of y = kx, where k is the constant of variation.
y = kx is the direct 

That means, k = -2. 

The constant of variation is B. -2.
7 0
3 years ago
Read 2 more answers
Adecco Workplace Insights Survey sampled men and women workers and asked if they expected to get a raise or promotion this year
fgiga [73]

Answer:

(a) <u>Null Hypothesis,</u> H_0 : p_1-p_2 \leq 0  or  p_1 \leq p_2  

    <u>Alternate Hypothesis</u>, H_a : p_1-p_2 > 0  or  p_1 > p_2

(b)  \hat p_1 = sample proportion of men = \frac{104}{200} = 0.52

     \hat p_2 = sample proportion of women = \frac{74}{200} = 0.37

(c) P-value is 0.0011.

Step-by-step explanation:

We are given that Adecco Workplace Insights Survey sampled men and women workers and asked if they expected to get a raise or promotion this year (USA Today, February 16, 2012).

Suppose the survey sampled 200 men and 200 women. If 104 of the men replied yes and 74 of the women replied yes.

Let p_1 = population proportion of men who replied yes

     p_2 = population proportion of women who replied yes

(a) <u>Null Hypothesis,</u> H_0 : p_1-p_2 \leq 0  or  p_1 \leq p_2   {means that the population proportion of men is less than or equal to the population proportion of women}

<u>Alternate Hypothesis</u>, H_a : p_1-p_2 > 0  or  p_1 > p_2   {means that the population proportion of men is more than the population proportion of women}

(b)  \hat p_1 = sample proportion of men = \frac{104}{200} = 0.52

     \hat p_2 = sample proportion of women = \frac{74}{200} = 0.37

The test statistics that will be used here is <u>Two-sample z proportion statistics</u>;

               T.S.  =  \frac{(\hat p_1-\hat p_2)-(p_1-p_2)}{\sqrt{\frac{\hat p_1(1-\hat p_1)}{n_1} +\frac{\hat p_2(1-\hat p_2)}{n_2} } }  ~ N(0,1)

where, \hat p_1 = sample proportion of men who replied yes = 0.52

            \hat p_2 = sample proportion of women who replied yes = 0.37

            n_1 = sample of men = 200

            n_2 = sample of women = 200

So, <u><em>test statistics</em></u>  =  \frac{(0.52-0.37)-(0)}{\sqrt{\frac{0.52(1-0.52)}{200} +\frac{0.37(1-0.37)}{200} } }

                               =  3.05

Now at 0.01 significance level, the z table gives critical value of 2.3263 for right-tailed test. Since our test statistics is more than the critical value of z so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region.

Therefore, we conclude that the population proportion of men is greater than the population proportion of women.

<u>P-value is given by the following formula</u>;

     P(Z > 3.05) = 1 - P(Z \leq 3.05)

                        = 1 - 0.99886 = 0.0011

Hence, the p-value is 0.0011.

8 0
3 years ago
Fourteen increased by 6 times a number is 32?
Sliva [168]
14 times 6 is 84, sorry if I didn’t understand your question
8 0
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Which of the choices best describes the transformations that are represented by the footprints? A reflection across a line follo
Feliz [49]

Answer:

Line XY and line MP are co-planar. Which statement shows that the lines are parallel?

A. Line XY and line MP never intersect.

B.Line XY and line MP share the same endpoint.

C.Line XY and line MP intersect at a 90° angle.

D.Line XY and line MP meet at a right angle.

so its a

Step-by-step explanation:

7 0
3 years ago
Halibut is $29 a pound .one portion is 6oz. How much does it cost to make one portion
natima [27]
It would be 10.87 because there is 16oz in a pound so 29/16= 1.8125 so 1.8125= 10.875

Hope this helps

Have a great day/night
8 0
2 years ago
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