3 years ago

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Mathematics

1 answer:

guapka [62]3 years ago

4 0

Answer:

What dose this mean

Step-by-step explanation:

Thx for the free points

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X decreased by 61% I need the right answer

nataly862011 [7]

Answer:

X-61=100

X=100-61

X=39%

Step-by-step explanation:

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2 years ago

Consider the diagram.<br> What is the length of segment AB?

Vlad [161]

The answer would be B

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Mrs. Miller claims that 10% of the marbles in the jar are purple. Do the students have statistically significant evidence that t

Keith_Richards [23]

Answer: C: Yes

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3 years ago

Simplify the product using distributive property (2x-5)(x+3) show work

coldgirl [10]

Use the FOIL method
First, Outside, Inside, Last
(2x -5)(x + 3)

2x(x) = 2x²
2x(3) = 6x
-5(x) = -5x
-5(3) = -15

2x² + 6x - 5x - 15

simplify

2x² + 6x - 5x - 15

2x² + x - 15

2x² + x - 15 is your answer

hope this helps

4 0

3 years ago

Read 2 more answers

Anybody know the answer?

Tcecarenko [31]

Method 1.

Use the formula of a distance between two points:

$A(x_A;\ y_A),\ B(x_B;\ y_B)\\\\d=\sqrt{(x_B-x_A)^2+(y_B-y_A)^2}$

We have

$A(-4,\ 5)\to x_A=-4,\ y_A=5\\B(2,\ -3)\to x_B=2,\ y_B=-3$

substitute

$|AB|=\sqrt{(-3-5)^2+(2-(-4))^2}=\sqrt{(-8)^2+6^2}=\sqrt{64+36}=\sqrt{100}=10$

Answer: 10

Method 2

Look at the picture.

Use the Pythagorean theorem:

$x^2=6^2+8^2\\\\x^2=36+64\\\\x^2=100\to x=\sqrt{100}\\\\x=10$

Answer: 10

6 0

3 years ago