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4 years ago

Simplify each expression. 3+-7 -2 4-16 -2(2)

2 answers:

5 0

Hey kiddo!

So when we simplify the first one we get: -6

When the second one is simplified we get: -16

Have a nice evening and happy learning!
~Brooke

ioda4 years ago

4 0

"+-" should always be changed to "-".

You have 3 - 7 - 2. You may evaluate this from left to right, obtaining -4 -2, or -6.

4 - 16 -2(2) involves multiplication, which must be carried out before addition or subtraction. Thus, 4 - 16 - 4. Working from left to right, we get -12 - 4 = -16

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NeX [460]

Answer:

c = 50

Step-by-step explanation:

Using the Pythagorean Theorem:

Plug in the values of a = 14, and b = 48

$a^{2} +b^{2} =c^{2}\\14^{2} +48^{2} =c^{2} \\c^{2} = 2500\\c = \sqrt{2500} \\c = 50$

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3 years ago

Find the inequality represented by the graph

Naya [18.7K]

The answer is 2 and over it is 3

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3 years ago

Quadrilateral abcd is inscribed in a circle with m∠a = (x)degrees, m∠b = (2x - 10)degrees, and m∠c = (3x)degree. what is m∠d?

Lynna [10]

Hello,

When you have a polygon inscribed in a circle, the opposite angles are supplementary.

So we can start by saying that A + C = 180. Or x + 3x = 180. This gives us a value of 45 for x.

If we input that in for angle B, we get: 2(25) - 10 = 80.

If angle B = 80, then angle D must be 100, because the angles are supplementary.

Good luck,
MrEQ

6 0

3 years ago

With one method of a procedure called acceptance sampling, a sample of items is randomly selected without replacement and the e

Veseljchak [2.6K]

Answer: Probability that the entire batch will be accepted is 0.658.

Yes, this suggests entire batch of good CDs as it is the only condition to get accepted.

Step-by-step explanation:

Since we have given that

Number of CDs = 507

Number of defective = 65

Since the entire batch will be accepted.

So, the probability of success is p = $\dfrac{507-65}{507}=\dfrac{442}{507}=0.87$

and the probability of failure is q = $\dfrac{65}{507}=0.128$

Number of CDs selected = 3

So, Probability that the entire batch will be accepted is given by

$P(X=3)=^3C_3(0.87)^3\\\\P(X=3)=0.658$

Hence, Probability that the entire batch will be accepted is 0.658.

Yes, this suggests entire batch of good CDs as it is the only condition to get accepted.

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3 years ago

Find 15% of 2.8 kg<br><img src="https://tex.z-dn.net/?f=15%5C%25%20%20%5C%3A%20of%20%5C%3A%202.8kg" id="TexFormula1" title="15\%

Artemon [7]

Answer:

0.42

Step-by-step explanation:

15%=0.15

0.15 x 2.8 = 0.42

4 0

3 years ago