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3 years ago

ANSWER ASAP!! URGENT

Mathematics

1 answer:

sineoko [7]3 years ago

8 0

Answer:

The vertex of the right angle in each triangle are on points (-1, 1) and (4, -2), as can be seen in the figure

Step-by-step explanation:

thank me later

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A news agency publishes results of a recent poll. It reports that candidate A leads candidate B by 10% because 45% of the poll p

natali 33 [55]

We need to use the formula to find Margin of Error but through the sample proportion, that is

$E=z*\sqrt{\frac{\hat{p}(1-\hat{p})}{n}}$

We will use a 95% confidence interval, that is a z value of 1.96 (Search in a Normal distribution table)

A) For A our $\hat{p}$ (proportion) is equal to 0.45. So applying the formula,

$E=1.96*\sqrt{\frac{0.45(1-0.45)}{900}}$

$E=3.25\%$

B) We make the same of point A, but change our proportion to 0.35

$E=1.96*\sqrt{\frac{0.35(1-0.35)}{900}}$

$E=3.116\%$

c) We need to calculate the SE through proportion for 0.1, that is

$SE = \sqrt{(\frac{\hat{p_1}(1-\hat{p_1})}{n})+(\frac{\hat{p_2}(1-\hat{p_2})}{n})}$

Then our Error is given by,

$E=z*SE$

$E=1.96*\sqrt(0.45*\frac{0.55}{900}+0.35\frac{0.65}{900}$

$E=0.045$

7 0

3 years ago

Simplify the expression: 6 + 2(7x + 3),

My name is Ann [436]

Answer:

14x+12

Step-by-step explanation:

6 + 2(7x + 3)

= 6+14x+6

= 14x+12

4 0

3 years ago

When Margo makes cheese ravioli, she uses both ricotta and mozzarella cheeses to make the filling. She often varies the proporti

Natalka [10]

Answer:

what is cheese ravioli tell Martha to go to the grocery store and get some chef Boyardee ravioli

6 0

3 years ago

Answer please Fast Fast

solong [7]

Answer:

A. 228.5

B. 10

Step-by-step explanation:

A. Since x represents the number of months, replace x with 6 in the equation. Then multiply 29x6, which equals 174. Then add 174+54.5, which equals 228.5.

B. You need to solve for x by switching the signs in the equation. Set the original equation (29x+54.5) equal to 344.50. To solve for x, first subtract 344.50-54.5, which equals 290 (you subtract because it's the opposite of adding). Then divide 290÷29, which equals 10. You can check your work by replacing x in the original equation with 10, and if you get 344.5, your answer is correct.

Good luck :)

6 0

2 years ago

1. Which equation is true when m = 12?

kobusy [5.1K]

Answer:

are there any more details? cant solve anything from what you have provided

Step-by-step explanation:

7 0

2 years ago