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3 years ago

With similar triangles, the ratios of all three pairs of corresponding sides are equal. True or false?

Mathematics

2 answers:

blondinia [14]3 years ago

6 0

Answer:

True

Step-by-step explanation:

I hope this helps.

iragen [17]3 years ago

4 0

This is true. It allows you to solve for missing sides or to prove that two angles are congruent if they give you all the side lengths. Just another fun thing about triangles!

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The cost of 5 pounds of apples is $6.45. Which statements can be used to solve for a, the cost of each pound of apples? Check al

Fudgin [204]

Cost of each pound of apples is $1.29

7 0

3 years ago

Read 2 more answers

Help me pleasee , timed

solong [7]

Answer:

The second alternative is correct

Step-by-step explanation:

We have been given the expression;

$(x^{27}y)^{\frac{1}{3}}$

The above expression can be re-written as;

$(x^{27})^{\frac{1}{3}}*y^{\frac{1}{3}}\\\\(x^{27})^{\frac{1}{3}}=x^{27*\frac{1}{3}}=x^{9}$

On the other hand;

$y^{\frac{1}{3}}=\sqrt[3]{y}$

Therefore, we have;

$x^{9}\sqrt[3]{y}$

6 0

3 years ago

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Ruiz needs to buy a countertop for a kitchen. He calculated the area to be 16 square feet. The actual area is 15.4 square feet.

igomit [66]

Percentage error $=\frac{error}{actual measurement} \times 100$
Here error = 16 - 15.4 = 0.6
Therefore, percentage error $=\frac{0.6}{15.4} \times 100=0.039 \times 100$
=3.9%

3 0

3 years ago

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Reports on a student's ACT, SAT, or MCAT usually give the percentile as well as the actual score. The percentile is just the cum

Nimfa-mama [501]

Answer:

The percentile for William is 76.97.

Step-by-step explanation:

1) Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Let X the random variable that represent the scors of a population, and for this case we know the distribution for X is given by:

$X \sim N(25.2,6.5)$

Where $\mu=25.2$ and $\sigma=6.5$

2) Solution to the problem

We are interested in find the percentile for the score of 30 obtained by William. The best way to solve this problem is using the z score formula given by:

$z=\frac{X-\mu}{\sigma}$