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3 years ago

14

Triangle ABC maps to triangle A′B′C′ by a 90∘ rotation counterclockwise about the origin.

1 answer:

Tresset [83]3 years ago

7 0

The answer is 90 units hope this helps

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Which statement is true:

Soloha48 [4]

B. Not Similar triangles.

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2 years ago

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Select all equations for which the point (2,3) is on the graph of the equation.

Inga [223]

I think the answer is F

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3 years ago

How to change a decimal into a hole number

marissa [1.9K]

Answer:

Step 1: Write down the decimal divided by 1, like this: decimal 1. Step 2: Multiply both top and bottom by 10 for every number after the decimal point. (For example, if there are two numbers after the decimal point, then use 100, if there are three then use 1000, etc.) Step 3: Simplify (or reduce) the fraction.

Step-by-step explanation:

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3 years ago

Five numbers has a mean of 12. When one (1) number is removed the mean is 11. What is the value of the number removed?

bonufazy [111]

Answer:

16

Step-by-step explanation:

The mean of a group of values is calculated as

mean = $\frac{sum}{count}$

Given 5 numbers with a mean of 12, then

$\frac{sum}{5}$ = 12 ( multiply both sides by 5 )

sum = 60

let the number removed be x , then

$\frac{60-x}{4}$ = 11 ( multiply both sides by 4 )

60 - x = 44 ( subtract 60 from both sides )

- x = - 16 ( multiply both sides by - 1 )

x = 16

The number removed was 16

6 0

3 years ago

Solve the following equations <br> 5^2x-2(5^x)-15=0

castortr0y [4]

Answer:

x = 1

Step-by-step explanation:

${5}^{2x} - 2( {5}^{x} ) - 15 = 0$

$( {5}^{x} {)}^{2} - 2 \times {5}^{x} - 15 = 0$

${t}^{2} - 2t - 15 = 0$

${5}^{x} t = - 3 \: \: .5$

${5}^{x} = 5$

$x = 1$

5 0

3 years ago