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10 months ago

I will Award Brainlist !! please Help its geometry ! :D

Mathematics

1 answer:

madreJ [45]10 months ago

7 0

To prove the congruence between triangles ABC and XYZ, we need to prove that the line segment AX is congruent to the line segment ZC. (Correct choice: B)

<h3>What additional condition must be fulfilled to conclude that two triangles are congruent by Side-Angle-Side Theorem?</h3>

In accordance with Euclidean theorem, there are three forms of proving congruence between two triangles:

Two pairs of adjacent sides and two pairs of angles between these sides (Side - Angle - Side).
Two pairs of adjacent angles and a pair of sides between these angles (Angle - Side - Angle).
Three of pairs of sides (Side - Side - Side).

Then, we find a picture with a geometrical system formed by two triangles, of which we know a pair of congruent lines and a pair of congruent angles. By Side-Angle-Side Theorem, we need to prove that that line segments are AX and ZC are congruent.

To learn more congruence of triangles: brainly.com/question/20521780

#SPJ1

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The amount of time (in hours) that Sam studied for an exam on each of the last five days is given below. 1.7 7.7 8.3 1.6 5.1 Fin

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Answer:

The mean is 4.88 hours / day

Step-by-step explanation:

To calculate the mean we just add the values and divide by the number of items (in this case we add the hours and divide by the number of days)

so the equation would be

$\frac{1.7+7.7+8.3+1.6+5.1}{5}=4.88$

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2 years ago

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aksik [14]

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3 years ago

What is 12 divided by 1230 in long division

Bess [88]

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2 years ago

Read 2 more answers

A phone manufacturer wants to compete in the touch screen phone market. He understands that the lead product has a battery life

alisha [4.7K]

Answer:

The null hypothesis is $H_0: \mu \leq 10$

The alternative hypothesis is $H_1: \mu > 10$

b-1) The value of the test statistic is t = 1.86.

b-2) The p-value is of 0.0348.

Step-by-step explanation:

Question a:

Test if the battery life is more than twice of 5 hours:

Twice of 5 hours = 5*2 = 10 hours.

At the null hypothesis, we test if the battery life is of 10 hours or less, than is:

$H_0: \mu \leq 10$

At the alternative hypothesis, we test if the battery life is of more than 10 hours, that is:

$H_1: \mu > 10$

b-1. Calculate the value of the test statistic.

The test statistic is:

We have the standard deviation for the sample, so the t-distribution is used to solve this question

$t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis, s is the standard deviation and n is the size of the sample.

10 is tested at the null hypothesis:

This means that $\mu = 10$

In order to test the claim, a researcher samples 45 units of the new phone and finds that the sample battery life averages 10.5 hours with a sample standard deviation of 1.8 hours.

This means that $n = 45, X = 10.5, s = 1.8$

Then

$t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}$

$t = \frac{10.5 - 10}{\frac{1.8}{\sqrt{45}}}$

$t = 1.86$

The value of the test statistic is t = 1.86.

b-2. Find the p-value.

Testing if the mean is more than a value, so a right-tailed test.

Sample of 45, so 45 - 1 = 44 degrees of freedom.

Test statistic t = 1.86.

Using a t-distribution calculator, the p-value is of 0.0348.

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2 years ago

Marcus rode his bike 60 miles in 4 hours. Marcus thinks that in order to find the unit rate, he should determine how far he rode

ELEN [110]

Answer:

No, he is not correct

Step-by-step explanation:

To find the unit rate you need to .60 by 4. you will get 2.4, which is the

unit rate. he rides his bike 2.4 mph.

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1 year ago