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2 years ago

Find the slope of a line parallel to each given line. 5)2x+3y=-3

Mathematics

1 answer:

Volgvan2 years ago

7 0

Answer:

-2/3

Step-by-step explanation:

2x + 3y = - 3 re-arrange to y = mx+b form: slope of this line will be 'm'

y = -2/3 x -1 slope = -2/3 parallel slope is the same

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Which expression can be used to find the sum of the polynomials? (9 – 3x2) + (–8x2 + 4x + 5)

Brums [2.3K]

Answer:

- 11x² + 4x + 14

Step-by-step explanation:

Given

(9 - 3x²) + (- 8x² + 4x + 5) ← distribute both parenthesis by 1

= 9 - 3x² - 8x² + 4x + 5 ← collect like terms

= - 11x² + 4x + 14 ← sum of the polynomials

6 0

4 years ago

Suppose that E and F are two events and that N(E and F)=300 and N(E)=730. What is P(F|E)?

marin [14]

Answer:

$\displaystyle\frac{30}{73}$

Step-by-step explanation:

The formula of conditional probability is:

$\displaystyle P(F|E)=\frac{P(E \cap F)}{P(E)}$

And if we called N(U) the total number of possible outcomes, then remember by definition of probability:

$\displaystyle P(E \cap F)=\frac{N(E \cap F)}{N(U)}\\\displaystyle P(E)=\frac{N(E)}{N(U)}$

Then plugging them into the formula of conditional probability we get:

$\displaystyle P(F|E)=\frac{\frac{N(E \cap F)}{N(U)}}{\frac{N(E)}{N(U)}}$

Then we simplify and we get:

$\displaystyle P(F|E)=\frac{N(E \cap F)}{N(E)}$

We just plug the given info and we get:

$\displaystyle P(F|E)=\frac{300}{730}=\frac{30}{70}$

3 0

4 years ago

HELPPP!! DUE NOWWWW!

Colt1911 [192]

Answer: C

Step-by-step explanation: x represents the number of classes, not the cost of classes.

7 0

2 years ago

A paperweight in the shape of a rectangular prism is shown:

mr Goodwill [35]

Answer:

it's Rectangle

Step-by-step explanation:

I did the test and got this right.

3 0

3 years ago

Read 2 more answers

A swordfish, one of the fastest swimming of all fish, can swim 4 times as fast as a

Reika [66]

Answer:

Step-by-step explanation:

The swordfish swims at 68 miles per hour because 4•17=68

5 0

3 years ago