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3 years ago

HELP PLEASE FAST I WILL MARK BRAINLIEST RANDOM ANSWERS WILL BE REPORTED

Mathematics

1 answer:

ElenaW [278]3 years ago

3 0

Answer:

(-2,-4)

Step-by-step explanation:

Turning the point 180 degrees causes the point to be reversed, or upside down, therefore the numbers will become negative.

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Need help ASAP!! Thanks

iren2701 [21]

The correct answer to this question will be the yellow box which is <5 less than five

5 0

2 years ago

At maximum speed, an airplane tracked 1720 miles against the wind in 5 hours. Flying with the wind, the plane can travel the sam

nataly862011 [7]

Recall your d = rt, distance = rate * time.

as the plane goes against the wind, the plane is not really flying at "x" mph, but is really going slower, at " x - y ", because the wind is subtracting speed from it.

likewise, when the plane is going with the wind, is not really going at "x" mph, but at " x + y ", is going faster due to the wind, thus

$\bf \begin{array}{lccclll}
&\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{time}\\
&------&------&------\\
\textit{against the wind}&1720&x-y&5\\
\textit{with the wind}&1720&x+y&4
\end{array}
\\\\\\
\begin{cases}
1720=(x-y)5\implies \frac{1720}{5}=x-y\\\\
344=x-y\implies \boxed{y}=x-344\\
---------------\\
1720=(x+y)4\implies \frac{1720}{4}=x+y\\\\
430=x+y\implies 430=x+\left( \boxed{x-344} \right)
\end{cases}
\\\\\\
430=2x-344\implies 774=2x\implies \cfrac{774}{2}=x\implies 387=x$

6 0

3 years ago

A researcher was interested in comparing the salaries of female and male employees of a particular company. independent random s

Aneli [31]

Answer:

Based on given data, we can say with 95% confidence that the female employees at this company average between $110 less and $10 less per week than the male employees.

Step-by-step explanation:

Sample 1 for female

Sample 2 for male

Confidence = 90%

Difference in mean weekly salary of all female employees and the mean weekly salary of all male employees = µ₁- µ₂

So based on above given data, we can say with 95% confidence that the female employees at this company average between $110 less and $10 less per week than the male employees.

5 0

3 years ago

Please help! Correct answers only please!

Marrrta [24]

Answer:

D. is your answer

Step-by-step explanation:

$V=whl=7*6.5*7=318.5unit^3$

3 0

3 years ago

The equation v/2 -21=-15 is solved in several steps below.

Arada [10]

Answer:

V/2 - 21 = -15

V/2 - 21 + 21 = -15 + 21

V/2 + 0 = 6

V/2 * 2 = 6 * 2

V = 12

8 0

3 years ago