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3 years ago

Help urgent I need this done quick

Mathematics

1 answer:

balu736 [363]3 years ago

6 0

Answer:

It is supplementary.

Step-by-step explanation:

Supplementary angles are angles that have two angles adding up to 180°. You can tell by just finding the straight line that equals 180° then seeing a line that separates the whole measurement into two angles, but together making a 180° angle still. Hope this helps! :D

Meanings of the other Options:

Alternate Interior Angles - Angles formed when two parallel or non-parallel lines are intersected by a transversal. The angles are positioned at the inner corners of the intersections and lie on opposite sides of the transversal.

Corresponding Angles - Angles that are in the same relative position at an intersection of a transversal and at least two lines. If the two lines are parallel, then the corresponding angles are congruent.

Alternate Exterior Angles - Angles are the pair of angles that lie on the outer side of the two parallel lines but on either side of the transversal line. Exterior angles lie on opposite sides of the transversal but outside the two parallel lines.

Parallel Lines - Two lines that never intersect. Like an equal sign for example (=).

Transversal - A line the cuts through a parallel line. Like a non-equal sign for example (≠).

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-20 = -4x – 68 please solve it

Jet001 [13]

Answer:

x= -12

Step-by-step explanation:

move variable to left and change its sign

= 4x - 20 = -68

move constant to the right and change its sign

= 4x = -68 + 20

calucate the sum

= 4x = -48

divide both sides of the equation by 4

x= -12

7 0

4 years ago

In a certain school district, it was observed that 32% of the students in the element schools were classified as only children (

kipiarov [429]

Answer:

We conclude that the proportion of only children in the special program is significantly different from the proportion for the school district.

Step-by-step explanation:

We are given that in a certain school district, it was observed that 32% of the students in the element schools were classified as only children (no siblings).

However, in the special program for talented and gifted children, 135 out of 347 students are only children.

Let p = population proportion of only children in the special program.

So, Null Hypothesis, $H_0$ : p = 32% {means that the proportion of only children in the special program is equal to the proportion for the school district}

Alternate Hypothesis, $H_A$ : p $\neq$ 32% {means that the proportion of only children in the special program is significantly different from the proportion for the school district}

The test statistics that would be used here One-sample z proportion statistics;

T.S. = $\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ~ N(0,1)

where, $\hat p$ = sample proportion of only children in the special program = $\frac{135}{347}$ = 0.39

n = sample of students = 347

So, test statistics = $\frac{0.39-0.32}{\sqrt{\frac{0.39(1-0.39)}{347} } }$

= 2.673

The value of z test statistics is 2.673.

Now, at 0.02 significance level the z table gives critical value of -2.3263 and 2.3263 for two-tailed test. Since our test statistics does not lie within the range of critical values of z, so we have sufficient evidence to reject our null hypothesis as it will in the rejection region due to which we reject our null hypothesis.

Therefore, we conclude that the proportion of only children in the special program is significantly different from the proportion for the school district.

4 0

3 years ago

5/8 divided by 1 1/3? In fraction form

Rom4ik [11]

Answer:

15/32

Step-by-step explanation:

3 0

3 years ago

This is the question Sin24=450/x

masya89 [10]

X = 25/4 hope this answer helps. Have a good day :)