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Lubov Fominskaja [6]
3 years ago
7

Please help asap!!! I need to know the answer to this. which measurement could not represent a right triangle?

Mathematics
1 answer:
Ad libitum [116K]3 years ago
5 0

Answer:

D

Step-by-step explanation:

Use Pythagorean Theorem

(a^2+b^2=c^2)

A: 36+64=100 Yes

B: 25+144=169 yes

C: 169+7056=7225 Yes

D: 400+441=784 No Because:841≠784

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A Rasmussen Reports survey of 1,000 US adults found that 42% believe raising the minimum wage will help the economy. Construct a
vitfil [10]

Answer:

(0.3798, 0.4602)

Step-by-step explanation:

Let p be the true proportion of US adults who believe raising the minimum wage will help the economy. A point estimate for p is \hat{p}=0.42 and a good aproximation (because we have a large sample) for the standard deviation of \hat{p} is \sqrt{\hat{p}(1-\hat{p})/n}=\sqrt{0.42(0.58)/1000}=0.0156. Therefore, a 99% confidence interval for p is given by \hat{p}\pm z_{\alpha/2}\sqrt{\frac{\hat{p}(1-\hat{p})}{n}} where \alpha=0.01 and z_{\alpha/2} is the \alpha/2th quantile of the standard normal distribution, so we have, 0.42\pm z_{0.005}0.0156, i.e., 0.42\pm(-2.5758)(0.0156) or equivalently (0.3798, 0.4602).

6 0
3 years ago
 m∠A = 42 and m∠C = 57. Find m∠B.<br>A. 81<br><br> B. 99<br><br> C. 132<br><br> D. 147
faltersainse [42]
A.
because the total distance of every triangle 180. Add the two other angles so 42+ 57 =99. Then you have to subtract those two combined angles to find the missing one from the total distance, which is 180. 180-99=81. the answer is A. 81
5 0
3 years ago
The function. In the graph is f(x) =
Tanya [424]

Answer:

x^3-2x^2-5x+6

Step-by-step explanation:

We have been given a graph of the function f(x).

Now we need to use that graph to find the equation of the graph and match with the correct choice from the give choices:

x^4-2x^2+5x+6

x^3-2x^2-5x+6

x^3-2x^2+5x+6

-x^4-2x^2+5x+6

We see that graph has end points in opposite direction then the degree of polynomial must be ODD.

Available degrees are 3 and 4. Degree 3 is odd so it is choice B or C.

Only x^3-2x^2-5x+6 satisfies the given points from graph.

Hence correct choice is x^3-2x^2-5x+6.

4 0
3 years ago
Which is the graph of y = [x] – 2?
omeli [17]

Answer:

Step-by-step explanation:

3 0
3 years ago
Ella has $115. She wants to purchase a cell phone for $53 and spend the rest on music. Each music download cost $9. Write and so
Mumz [18]

Answer: 6.89


Step-by-step explanation:

9x+53>= 115

Subtract 53 from both sides

9x+(53-53) >115-53

9x>62

Divide both sides by 9.

9x÷9>62÷9 = 6.889


3 0
3 years ago
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