3 years ago

Helppp me please I need to graduate

Mathematics

1 answer:

Elenna [48]3 years ago

7 0

(5x³-7)(2x²+1)

OPTION D is the correct answer

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2 divided by 4/5 pls

Anna35 [415]

Answer:

5/2

Step-by-step explanation:

5/2 as a decimal is 2.5

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2 years ago

The sum of 3 times a number and 1 is 17 decreased by the number

DanielleElmas [232]

Answer:

-9

Step-by-step explanation:

3x + 1 = x -17

3x-x=-17-1

x = -9

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2 years ago

A function has y-intercept of -2 and a slope of -3/5. Which equation below describes the function?

alexandr402 [8]

D.y = -3/5x - 2

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2 years ago

Its really bad how im not educated in math but atleast this is my final worksheet xd.

Alex73 [517]

Answer:

For the first question the answer is 7/8 and for the second 1 the answer is 10/10 or 1/10

Step-by-step explanation:

you subtract 1/2 from 1 3/4 and get 7/8 same for the bottom question subtracted 1/4 from 2 1/2 for you answer.

4 0

1 year ago

A screening test for a disease shows a positive result in 91% of all cases when the disease is actually present and in 7% of all

Jobisdone [24]

Answer:

0.0713 = 7.13% probability that the result is positive.

Step-by-step explanation:

Probability of a positive test:

91% of 1/650(has the disease).

7% of 1 - 1/650 = 649/650(does not have the disease). So

$p = 0.91\frac{1}{650} + 0.07\frac{649}{650} = \frac{0.91 + 0.07*649}{650} = 0.0713$

0.0713 = 7.13% probability that the result is positive.

4 0

2 years ago