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3 years ago

(x^2+5)(8x-3) multiply

Mathematics

1 answer:

klio [65]3 years ago

5 0

X^2 x 8x -3x^2 +5 x 8x -5 x 3

8x^3 -3x^2 +40x -15

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HELP HURRYYY!!! I DONT KNOW

Anettt [7]

Answer:

it would be A. it would be A because on the x coordinate would be placed like (x, y) 4 is negative and 6 is positive, hence (-4, 6)

Step-by-step explanation:

<em>can i have brainliest?</em>

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3 years ago

A bag contains x blue chips and y red chips. If the probability of selecting a red chip at random is 3/7, then x/y = ________.A.

LUCKY_DIMON [66]

Answer:

D. $\frac{4}{3}$

Step-by-step explanation:

We have been given that a bag contains x blue chips and y red chips. The probability of selecting a red chip at random is 3/7. We are asked to find the $\frac{x}{y}$ .

$\text{Probability}=\frac{\text{Number of favorable outcomes}}{\text{Total number of possible outcomes}}$

$P(\text{Red})=\frac{\text{Number of red chips}}{\text{Total number of chips}}$

$P(\text{Red})=\frac{y}{x+y}$

Since we are told that probability of selecting a red chip at random is 3/7, so red balls are 3 and total balls are 7:

$P(\text{Red})=\frac{3}{x+3}$

Since total balls are 7, so we will get:

$x+3=7\\x=4$

Upon substituting $x=4\text{ and } y=3$ in expression $\frac{x}{y}$ , we will get:

$\frac{4}{3}$

Therefore, the value of $\frac{x}{y}$ is $\frac{4}{3}$ and option D is the correct choice.

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3 years ago

Please answer it I have a timer

grigory [225]

The answer to this question is 5

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3 years ago

What is this I have this as homework and im so confused can someone please help me.

Assoli18 [71]

answer: x<-8

Step-by-step explanation:

x-3-1<-12 add like terms

x-4<-12 add 4 to both sides

x<-8

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4 years ago

The Roy's safety-first ratio is actually a standard normal variable that measures the distance to the right of the mean.A. TrueB

Gwar [14]

Answer:

false................

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3 years ago