What is the value of a + 4b / a + b if a = -4, b = 3

Answers

Answer 1
Answer:

Answer:- 8

Step-by-step explanation:

-4 + 4(3)/ -4+3

-4 +12 / -1

8/-1


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Please help with the last question & explain it to me. Thank you.

Answers

Answer:

No because he only won 3/4 not more than 3/4

Step-by-step explanation:

So the part where it says I have won more than 75% of all the games I have played, it is saying he has won more than 75% or 3/4? Which he only won 3/4 not more. 75% is equal to 3/4.

Which relation is not a function?

Answers

It would be 3 beacuse w=3

An airplane makes a 2,748-mile flight in 6 hours. What is the airplane's average rate of speed in miles per hour?

Answers

Answer:

speed=16,480 miles per hour or 16,480/hour.

Step-by-step explanation:

Distance=speed ×time

Tony worked 9 hours Monday, 9.5 hours Tuesday, 8.75 hours Wednesday,9.25 hours Thursday 8 hours Friday and 6 hours Sunday. How many hours
did he work?

Answers

The answer is 50.5 hours

all you have to do is add all the hours up to get the grand total.

Hope this helps

have a great day!

Please help me! Determine the area

Answers

9514 1404 393

Answer:

  31.41 ft²

Step-by-step explanation:

Heron's formula is useful when you have the three side lengths.

  A = √(s(s -a)(s -b)(s -c)) . . . . sides are a, b, c and s = (a+b+c)/2

Using the given side lengths, we have ...

  s = (8 +8.4 +13.5)/2 = 29.9/2 = 14.95

  A = √(14.95(14.95 -8)(14.95 -8.4)(14.95 -13.5)) = √(14.95×6.95×6.55×1.45)

  A = √986.81399375 ≈ 31.41 . . . . square feet

A national survey of 1516 respondents reached on land lines and cell phones found that the percentage of adults who favor legalized abortion has dropped from 55% a year ago to 45%. The study claimed that the erroratributable to sampling is 4 percentage points. Would you claim that a majority of people are not in favor of legalized abortion?

Answers

Answer:

The upper bound of the interval is below 0.5, which means that it can be claimed that a majority of people are not in favor of legalized abortion

Step-by-step explanation:

Confidence interval:

Sample proportion plus/minus margin of error.

In this question:

Sample proportion of 0.45, margin of error of 0.04. So

0.45 - 0.04 = 0.41

0.45 + 0.04 = 0.49

The confidence interval is of (0.41,0.49). The upper bound of the interval is below 0.5, which means that it can be claimed that a majority of people are not in favor of legalized abortion

Final answer:

Given the margin of error of 4 percentage points, we cannot definitively state that a majority are against legalized abortion, even though the survey shows a 45% favor rate. The true proportion could be anywhere from 41% to 49%.

Explanation:

The question relates to the interpretation of survey results and margin of error. The study indicates that 45% of the surveyed adults favor legalized abortion, down from 55%. However, the study also reveals a margin of error of 4 percentage points.

This implies that the true proportion of adults favoring legalized abortion could be anywhere from 41% (45% - 4%) to 49% (45% + 4%). So, we cannot definitively say that a majority of adults are opposed to legalized abortion, as the result could still be close to 50%, given the margin of error.

Learn more about Survey Results and Margin of Error here:

brainly.com/question/32816116

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