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3 years ago

What does 4.5 miles equal in yards

Mathematics

1 answer:

IgorLugansk [536]3 years ago

8 0

4.5 miles is equal to 7920 yards

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Look at the graph: What is the slope?

Arisa [49]

Answer:

The slope is 2/3

Step-by-step explanation:

The line crosses through the blue grid lines leaving gaps on each. Find two points which cross at an intersection such as (0,30) and (30,50). Find the slope by substituting these points into the slope formula:

$m = \frac{y_2-y_1}{x_2-x_1} = \frac{50-30}{30-0} =\frac{20}{30} =\frac{2}{3}$

5 0

3 years ago

Pls help me with this question thank you

NARA [144]

Answer: It's D (56/3)

8 0

3 years ago

Please Help!

Alexxx [7]

Using the midpoint formula:
2-(-6)=8
8/2=4
X=4

7-(-3)=10
10/2=5
Y=5

The coordinates of the midpoint are (4,5)

6 0

3 years ago

4) Adjoa’s gross salary for last month was Ghc4,687.24. If Ghc421.78 was deducted from Adjoa’s salary pay, how much take-home pa

xeze [42]

Answer:

Ghc4265.46

Step-by-step explanation:

we'll subtract the amount she need to pay from her total salary amount.

6 0

3 years ago

A simple random sample of 144 items resulted in a sample mean of 1250.25 and a standard deviation of 480. Which of the following

Lerok [7]

Answer:

Correct formula for a 99% confidence interval for the population mean = $[xbar - 2.61138*\frac{480}{\sqrt{144} } , xbar + 2.61138*\frac{480}{\sqrt{144} }]$

Step-by-step explanation:

We are provided a simple random sample of 144 items of which sample mean, xbar = 1250.25 and Standard Deviation, s = 480.

We know that $\frac{xbar - \mu}{\frac{s}{\sqrt{n} } }$ follows $t_n_-_1$ i.e.;

$\frac{1250.25 - \mu}{\frac{480}{\sqrt{144} } }$ follows $t_1_4_3$

So, 99% confidence interval is given by ;

P(-2.61138 < $t_1_4_3$ < 2.61138) = 0.99 {because at 143 degree of freedom t table

gives critical value of 2.61138 at 0.5% level}

Now, after further solving this we get,

99% confidence interval for the population mean =

$[xbar - 2.61138*\frac{480}{\sqrt{144} } , xbar + 2.61138*\frac{480}{\sqrt{144} }]$

Since, in the question options are not given so this must be the correct formula for calculating 99% confidence interval for the population mean.

6 0

4 years ago