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3 years ago

Is 14.1 a rational number

Mathematics

1 answer:

Hatshy [7]3 years ago

5 0

Yes, it is a rational number

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Kristen was asked to write each of the numbers in the expression 80,000 x 25 using exponents. Her response was (8 x 10 to the po

Gnom [1K]

Kriste respone is wrong

Solution:

Given that,

Kristen was asked to write each of the numbers in the expression 80,000 x 25 using exponents

Her response was (8 x 10 to the power of 3) x 5 to the power of 2

No, the response of Kristen is wrong

Let us first understand about exponents

An exponent refers to the number of times a number is multiplied by itself

Given expression is:

$80000 \times 25$

Here, 80000 has 4 zeros

Therefore, it can be raised as 10 power 4

$80000 = 8 \times 10^4$

Thus the expression becomes:

$80000 \times 25 = 8 \times 10^4 \times 25$

Also, 25 can be written as 5 power 2

$80000 \times 25 = 8 \times 10^4 \times 5^2$

Thus given expression is written as (8 x 10 to the power 4) x 5 power to the power 2

Thus Kristen respone is wrong, because he has raised 10 to power 3

6 0

3 years ago

Solve |y - 2|<10 {y|-8 < y < 12} {y|-12 < y < 8} {y|-8 < y < 8}

lukranit [14]

The answer is -8 < y < 12

3 0

3 years ago

Please help i don't understand

alexira [117]

Answer:

Step-by-step explanation:

The diagonals of a parallelogram bisect each other. Hence, the two shorter sides created on diagonal RT ("6x-7" and "x+28" ) are equal.

We can set them equal and solve for x:

$6x-7=x+28\\6x-x=28+7\\5x=35\\x=\frac{35}{5}\\x=7$

So the side length of 6x -7 is:

6(7)-7 = 35

and the side length of x + 28 is:

7 + 28 = 35

THus, the diagonal RT = 35 + 35 = 70 units

Answer choice A is right.

3 0

3 years ago

Silas took 17 bags of glass to the recycling center. He still has 8 bags of plastic to take to the recycling center. Which equat

Masja [62]

I think it’s C. X+17 = 8

4 0

3 years ago

What is x? 5x+4-367x2=45 Dont forget to use MDAS

muminat

I'm pretty sure it is 155

8 0

3 years ago