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3 years ago

A jet's engine takes in 20 kilograms of air per second. The air is compressed, heated, and

Mathematics

1 answer:

Vladimir79 [104]3 years ago

7 0

Answer:

anwser -10000 n

Step-by-step explanation:

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What is the value of the expression? 1 1/3 x 2/7

natka813 [3]

Answer:

$\frac{2}{21}$

Step-by-step explanation:

First, apply the fraction rule.

$\frac{1}{3}\cdot \frac{2}{7}=\frac{1\cdot \:2}{3\cdot \:7}$

$=\frac{1\cdot \:2}{3\cdot \:7}\\$

Then, I multiplied the numbers on top.

$=\frac{2}{3\cdot \:7}$

Finally, I multipiled the numbers on the bottom.

$=\frac{2}{21}$

Hope this helps, and have a blessed day!

3 0

3 years ago

Jose has a board that is 44 inches long. He wishes to cut it into two pieces so that one piece would be 6 inches longer than the

WARRIOR [948]

The shorter piece should be 19 inches.

3 0

3 years ago

Write a quadratic equation whose solutions are 7i and -7i

mrs_skeptik [129]

$x = \pm 7i \\ \\ x^2 = -49 \\ \\ x^2 +49 = 0$

4 0

4 years ago

The industrial process that is used to convert a fuel to gasoline is carried out at a temperature range of 660 degrees°F to 790

NARA [144]

Answer:

$|F-725|$

With F represent the variable of interest:

$-65< F-725< 65$

$-65+725< F< 65+725$

$660 < F< 790$

Step-by-step explanation:

For this case we have a normal limits for the temperature Range. The minimum is 660 F and the maximum 790 F.

We can find the midpoint of this interval like this:

$Midpoint= \frac{660+790}{2}= 725$

And the difference between the midpoint and the limits are:

$|790-725|= 65$

$|680-725|= 65$

So then we can create the following inequality:

$|F-725|$

With F represent the variable of interest.:

$-65< F-725< 65$

$-65+725< F< 65+725$

$660 < F< 790$

5 0

3 years ago

Mrs . Porcelli’s classroom bulletin board is 2/1/4 feet long. Ms .Smith bulletin board is 3 times as long Mrs . Porcelli’s.How l

snow_lady [41]

Answer:

$6\frac{3}{4}\ ft$

Step-by-step explanation:

we know that

To find out how long is Ms.Smith’s bulletin board, multiply Mrs . Porcelli’s bulletin board by 3

$2\frac{1}{4}(3)$

but first convert mixed number to an improper fraction

$2\frac{1}{4}\ ft=2+\frac{1}{4}=\frac{9}{4}\ ft$

substitute

$\frac{9}{4}(3)=\frac{27}{4}\ ft$

convert to mixed number

$\frac{27}{4}\ ft=\frac{24}{4}+\frac{3}{4}=6\frac{3}{4}\ ft$

3 0

3 years ago