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nikklg [1K]
2 years ago
7

Does 30, 40, 45 make a right triangle?

Mathematics
2 answers:
madreJ [45]2 years ago
6 0
No… a right triangle must have a 90 degree angle
mr Goodwill [35]2 years ago
4 0

Answer:

no these degrees do not make a right triangle

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Please Help, 35 Points.
Andrei [34K]

To answer this question, we have the start-up costs of $ 52,000

A monthly inflation of $ 0 is assumed

Operating costs  are $680

The daily gain  is $960

For the Part A.

The inequality that this situation represents

 960d-680d>52000

So:

d(960-680)>52000

Where d represents the number of days.

For the Part B.

To start earning, you must replace all the initial investment and cover the expenses per day. The time that must pass for this to happen is obtained by clearing "d" from the inequality.


 d>\frac{52000}{960-680}

d> 185.71 days

Then, the sum of the net profits will be greater than the initial investment after 186 days of starting the business.

4 0
3 years ago
The sample consisted of 50 night students, with a sample mean GPA of 3.02 and a standard deviation of 0.08, and 25 day students,
bulgar [2K]

Answer: The test statistic is t= -0.90.

Step-by-step explanation:

Since we have given that

n₁ = 50

n₂ = 25

\bar{x_1}=3.02\\\\\bar{x_2}=3.04\\\\\sigma_1=0.08\\\\\sigma_2=0.06

So, s would be

s=\sqrt{\dfrac{n_1\sigma_1^2+n_2\sigma_2^2}{n_1+n_2-2}}\\\\s=\sqrt{\dfrac{50\times 0.08^2+25\times 0.06^2}{50+25-2}}\\\\s=0.075

So, the value of test statistic would be

t=\dfrac{\bar{x_1}-\bar{x_2}}{s(\dfrac{1}{n_1}+\dfrac{1}{n_2})}\\t=\dfrac{3.02-3.04}{0.074(\dfrac{1}{50}+\dfrac{1}{25})}\\\\t=\dfrac{-0.04}{0.074(0.02+0.04)}\\\\t=\dfrac{-0.04}{0.044}\\\\t=-0.90

Hence, the test statistic is t= -0.90.

7 0
3 years ago
Look at the graph of the equation y = 5x. Which statement is true?
Ugo [173]

Answer:

B).  As x increases by 1,  y increases by 5.

Step-by-step explanation:

When x = 1, y = 5

when x = 2, y = 10

when x = 3, y = 15.

So it is B

As x increases by 1,  y increases by 5.

8 0
3 years ago
How could you use coordinate geometry to prove that segment BD and segment AC bisect one another?
miss Akunina [59]

Answer:

i just know its not B or C im sorry thats all i know

Step-by-step explanation:

i did take the test more than two times thats how i know

3 0
4 years ago
Solve this question and how to do it
satela [25.4K]

Answer:

Step-by-step explanation:

7/15 + 3/5

I'd multiply 3/5 by 3 so that both of the denominators (bottom number) are the same.

Now all we have to do is add the Numerators tog

7/15 + 9/15ether (the top number)

7/15 +9/15 = 16/15 or 1 1/15

6 0
3 years ago
Read 2 more answers
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