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2 years ago

Solve the following equation. Then place the correct number in the box provided. x/9 = 1

Mathematics

2 answers:

Alchen [17]2 years ago

6 0

$\frac{x}{9} = 1 \\ \\ 1. \: x = 1 \times 9 \\ \\ 2. \: x = 9$

BARSIC [14]2 years ago

3 0

First, we need to isolate the variable x.

To isolate x, we simply need to multiply both sides by 9, which would result in x = 9

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13. Distributive Property 3(x - 1) = 3x - ?

goblinko [34]

Answer:

$\huge\boxed{3x-3}$

Step-by-step explanation:

$3(x-1)=\\\\\text{Distribute: }\left \{ {{3*x=3x} \atop {3*-1=-3}} \right.\\\\3(x-1)=\boxed{3x-3}$

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3 years ago

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Two factors of 18 add up to 12. What are they?

stepladder [879]

Answer:

3 and 9

Step-by-step explanation:

The factors of 18 can be listed as

1, 2, 3, 6, 9, 18

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2 years ago

Solve: 5x2 + 25x = 0

sammy [17]

Answer:

x = -0.4

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3 years ago

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Can someone please explain?

geniusboy [140]

This is an isosceles triangle. The angles at the base are congruent (they have the same measures).

Look at the picture.

We know: The sum of the measures of angles in a triangle is equal 180°.

Therefore we have the equation:

$2x-10+2x-10+3x+25=180$ combine like terms

$(2x+2x+3x)+(-10-10+25)=180$

$7x+5=180$ subtract 5 from both sides

$7x=175$ divide both sides by 7

$x=25$

$m\angle A=2x-10\to m\angle A=2(25)-10=50-10=40\\\\m\angle C=m\angle A=40\\\\m\angle B=3x+25\to m\angle B=3(25)+25=75+25=100^o$

<h3>Answer: D. m∠C = 40</h3>

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2 years ago

How do you this?? Scientific notation

Airida [17]

So Scientific Notation is a "simplified version" of a number. For example, is your number is 2,345, the scientific notation would be 2.345 * 10³.

If it was 0.023, then the scientific notation would be 2.3 * 10^-2.

Scientific notation is found by moving the decimal place to the left or right, until only one digit is left to the left of the decimal; it has to be greater than 1, but less than ten. If you move the decimal place to the right, it's a negative power of 10. If you move it to the left, it is a positive power of 10.

Hope this helps!

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3 years ago