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1 year ago

PLEASE HELP ME ASAP SOMEONE

Mathematics

1 answer:

Eduardwww [97]1 year ago

8 0

Answer:

E (3,-1) D (-2, -2) G (-1, 3) F (3, 2)

Step-by-step explanation:

90 degrees = (y, -x)

that means you take the ordered pair you want to rotate and plug the x and y into the new spots.

for example, point E is at (1,3) so the point rotated 90 degrees is (3,-1)

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Berry Boulevard is 4 4/5 Miles long.There are two traffic lights on Berry Boulevard every 2/5 mile after the street begins .Ther

Gwar [14]

Answer: There are 24 traffic lights on Berry Boulevard.

Step-by-step explanation:

Since we have given that

Total length of road = $4\dfrac{4}{5}=\dfrac{24}{5}\ miles$

Number of roads on every $\dfrac{2}{5}\ mile$ = 2

So, According to unitary method,

In every $\dfrac{2}{5}\ mile$ , number of roads = 2

In every 1 mile, number of roads = $\dfrac{5}{2}\times 2=5$

So, in every $\dfrac{24}{5}\ miles,$ the number of roads = $\dfrac{24}{5}\times 5=24$

Hence, there are 24 traffic lights on Berry Boulevard.

6 0

3 years ago

No explanation needed, just correct answer please.

RoseWind [281]

Answer:

the red one

Step-by-step explanation:

7 0

2 years ago

In an effort to improve scores on college-entrance exams, the principal at a large high school chooses 35 students

denpristay [2]

Using the t-distribution, it is found that the test statistic for the hypotheses test is given by:

$t = \frac{-1.75 - 0}{\frac{7.12}{\sqrt{35}}}$

<h3>What are the hypotheses tested?</h3>

At the null hypotheses, it i tested if the mean difference remains the same, that is:

$H_0: \mu = 0$

At the alternative hypotheses, it is tested if it has decreased, hence:

$H_a: \mu < 0$ .

<h3>What is the test statistic?</h3>

The test statistic is given by:

$t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}$

The parameters are:

$\overline{x}$ is the sample mean.

$\mu$ is the value tested at the null hypothesis.

s is the standard deviation of the sample.

n is the sample size.

The parameters are given as follows:

$\overline{x} = -1.75, s = 7.12, n = 35$ .

Hence the test statistic is given by:

$t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}$

$t = \frac{-1.75 - 0}{\frac{7.12}{\sqrt{35}}}$

More can be learned about the t-distribution at brainly.com/question/16162795

#SPJ1

5 0

1 year ago

What's the range of 37000 and 45000

Galina-37 [17]

Range: Subtract <span>37000 from 45000 and you'll have it.</span>

8 0

2 years ago

Y-1/3>1/8 Choose the correct solution and graph for the inequality?

lora16 [44]

The graph of y>11/24 is correct

5 0

3 years ago