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myrzilka [38]
3 years ago
10

Can someone help me with all this...

Mathematics
1 answer:
professor190 [17]3 years ago
4 0

Answer:

Option D -Parallelogram  and rhombus is the correct answer.

Step-by-step explanation:

<u>Option A -Square.</u>

In square all sides are equal and all angles are equal and each angle is equal to 90°

<u>Option B - Parallelogram </u>

In Parallelogram  opposites sides are equal and parallel. there is no right angles.

<u>Option C -Rectangle</u>

In rectangle opposites sides are equal and parallel. All angles are equal to  90°

<u>Option D -Parallelogram  and rhombus</u>

In Parallelogram  opposites sides are equal and parallel. there is no right angles.

In rhombus all sides are equal and parallel. there is no right angles.

Therefore correct answer is option D


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A triangle has sides of lengths 8, 15, and 17. Is it a right triangle? Explain.
natta225 [31]

Answer:

Step-by-step explanation:

8^2 + 15^2 = ?

64 + 225 = 17^2

289 = 289

\sqrt{289} = \sqrt{289\\} \\ 17 = 17

4 0
2 years ago
The standard IQ test has a mean of 102 and a standard deviation of 13. We want to be 98% certain that that we are within 5 IQ po
aleksklad [387]

Answer:

37

Step-by-step explanation:

Margin of error = critical value × standard error

For 98% confidence, CV = 2.326 (from t table).

Standard error is σ / √n, where σ is the population standard deviation, and n is the sample size.

Plugging in:

5 = 2.326 × 13 / √n

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Rounding up, n = 37.

5 0
3 years ago
Pls help???????? need to have an explanation also
Ratling [72]

Answer:

I would say the answer is 40 cookies

Step-by-step explanation:

The reason I say this is because if you write out the amount of cookies she can make with 6 cups of flour, you would get 30/6. 30 and 6 are both divisible by 6, so if you divided both by 6 you will get 5/1. 1 times 8 is 8, so if you multiply 5 by 8 you will get 40 cookies.

Hope this helped!

7 0
3 years ago
65 Divided by 3459 what is it?
telo118 [61]

Answer: 53.2

Step-by-step explanation:

8 0
3 years ago
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I need help rlly bad I have no idea what’s the answer plsss help me!!!
lyudmila [28]

Answer:

n = 6\sqrt{3}

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin30° = \frac{\sqrt{3} }{2} , then

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3 0
2 years ago
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