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3 years ago

Multiple Choice: Please select the best answer.

Mathematics

2 answers:

Vladimir [108]3 years ago

7 0

The answer is c

because when you increase x on the graph the line goes up

therefore the y value is increasing also

The line is a straight line so as the x decreases the y also decreases

kifflom [539]3 years ago

3 0

I'm not sure but I think its c

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The speed of light is approximately 299,000,000 meters per second.

jek_recluse [69]

Answer:

2.99 x 10⁸ meters per second

Step-by-step explanation:

Scientific notation (also called "Standard form") is written in the form of $a \times 10^n$ , where $1\leq a < 10$ and $n$ is any positive or negative whole number.

To <u>convert</u> a number into <u>scientific notation</u>, move the decimal point to the left or right until there is <u>one digit before the decimal point.</u>

The number of times you have moved the decimal point is the power of 10 ( $n$ ).

If the decimal point has moved to the <u>left</u>, the power is <u>positive</u>.

If the decimal point has moved to the <u>right</u>, the power is <u>negative</u>.

<u>To convert the given number to scientific notation</u>

The decimal point for the given number 299000000 is after the last zero:

⇒ 299000000.

Move the decimal point 8 places to the left:

⇒ 2.99000000

Get rid of the redundant zeros:

⇒ 2.99

Multiply by 10 to the power of the number of decimal places moved:

⇒ 2.99 x 10⁸

Therefore, the speed of light using scientific notation is:

2.99 x 10⁸ meters per second

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2 years ago

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tatyana61 [14]

40 students prefer vanilla. To get this answer you need to multiply 200 times 0.2 because you are trying to find 20%

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3 years ago

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Which expression has the same value as Negative 18 divided by (negative 9)?

Mandarinka [93]

Answer:

The answer is 36/18.

Hope this helps.

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4 years ago

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Solve for the variable.<br> The quotient of a number n divided by -4.5 equals 200.6.

jeyben [28]

Answer:

n = -902.7

Step-by-step explanation:

n/-4.5 = 200.6

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2 years ago

What is the division property of exponents?

zavuch27 [327]

<h3>Answer:</h3>

$\dfrac{a^b}{a^c}=a^{(b-c)}$

<h3>Step-by-step explanation:</h3>

An exponent represents repeated multiplication. For example, ...

... x^3 = x·x·x

... x^2 = x·x

If we divide these, the x's in the denominator cancel an equal number in the numerator:

... (x·x·x)/(x·x) = x

If we represent the repeated multiplication using exponents, we can represent the cancellation by subtraction:

... (x^3)/(x^2) = x^(3-2) = x^1 = x

Once we have this idea in mind that division can be done by subtracting denominator exponents, we can use it regardless of the magnitude or sign of the exponents involved.

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3 years ago