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3 years ago

Help me please if you can

Mathematics

1 answer:

Ilya [14]3 years ago

5 0

30 miles in 40 minutes

since we need to know how many miles in 1 minute, divide both by 40 so that it goes down to 1 minute.

30/40=.75 miles/min or 3/4 miles/min

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Factor of −21x^2+2x+8

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-(7x + 4)(3x - 2)

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How many ways can you arange the letters in the word cube

Margarita [4]

You could four times because there are four letters in the word cube, so there are only four possible ways you could spell it.

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3 years ago

The coordinates of the endpoints of AB are A(−2, −2) and B(1, 3). Which measurement is closest to the length of AB in units?

nydimaria [60]

Answer:

Step-by-step explanation:

this person got it wrong, if your on USATESTPREP its 5,8 your welcome$$$

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8 numbers have a sum of 90. Whats the average number?

ehidna [41]

Answer:

$\huge\boxed{11.25}$

Step-by-step explanation:

When finding the average of a set of numbers, we

A) Add up all the numbers
B) Divide that sum by the total number of numbers in the data set

Let's represent this with a formula, s being the sum of all numbers, n being the total number of numbers.

$\frac{s}{n}$

Since we already know the sum and we know how many numbers there are (8), we can substitute inside our expression $\frac{s}{n}$ to find the average.

$\frac{90}{8}$
$11.25$

Therefore, the average of all these numbers is 11.25.

Hope this helped!

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3 years ago