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3 years ago

Which triangle is similar to pqr

Mathematics

2 answers:

kodGreya [7K]3 years ago

5 0

Hmm if it’s skekdnrbrhens a siss

Gelneren [198K]3 years ago

3 0

Answer:

STQ

Step-by-step explanation:

Triangle STQ is the correct option

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HELPPPP Write the equation of a line in slope intercept form with a slope of -3/4 and a y-intercept of -9.

Vanyuwa [196]

Answer:

y=-3/4x-9

Step-by-step explanation:

plz give brainliest!! hope this helps!

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3 years ago

Given: Parallelogram ABCD,

andreyandreev [35.5K]

Answer:

a. m DCB =<DAB=120 opposite angle of the parallelogram are equal

again

BP=PD diagonal bisect it

3x+7=-x+17

3x+x=17-7

4x=10

x=10/4=5/2

b. BD =3x+7-x+17=3×5/2+7-5/2+17=2×5/2+24=5+24=29

4 0

2 years ago

A school has 3400 students. They conduct a random sample of 124 students and find that 38 of them hate the school.

Contact [7]

Answer:

a) We need a sample size of at least 2401.

b) We need a sample size of at least 1936.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.

In which

z is the zscore that has a pvalue of .

The margin of error is:

95% confidence level

So , z is the value of Z that has a pvalue of , so .

(a) you are unwilling to predict the proportion value at your school and

We use , which is when we are going to need the largest sample size.

So we need to find We need a sample size of at least 2401.

(b) you use the results from the surveyed school as a guideline.

Now the same calculation, just with . So

We need a sample size of at least 1936.

5 0

2 years ago

Slope of a line that passes through points (1,7) and (3,3)

Nadusha1986 [10]

-2 is the answer because you do the change of y over the change of x.

3 0

3 years ago

Can some explain how to do this.

KatRina [158]

We can simplify the expression by using exponent properties, and we will see that the correct option is the fourth option.

<h3>How to simplify the expression?</h3>

Remember the exponent property:

$\frac{a^n}{a^m} = a^{n - m}$

Here we have the expression:

$\frac{83.9*10^{12}*2.87*10^{-3}}{3.76*10^2}$

We can reorder this to get:

$\frac{83.9*10^{12}*2.87*10^{-3}}{3.76*10^2} = \frac{83.9*2.87}{3.76}*\frac{10^{12}*10^{-3}}{10^2}$

The right side can be simplified to:

$\frac{83.9*2.87}{3.76}*\frac{10^{12}*10^{-3}}{10^2} = 64.04*10{12 - 3 - 2} = 64.04*10^{7}$

Now, we can move the decimal point one time to the left and increase the exponent by one, so we get:

$6.404*10^8$

Then we conclude that the correct option is the last one (where I rounded the expression to only 3 values after the decimal point).

If you want to learn more about scientific notation:

brainly.com/question/5756316

#SPJ1

3 0

1 year ago