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3 years ago

HELPP ASAP I’ll MARK YOu AS brainlister:(!!!

Mathematics

1 answer:

Lorico [155]3 years ago

7 0

Answer:

Step-by-step

edp445

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The probability that Brian wins a raffle is given by the expression n n + 2 . Write down an expression, in the form of a combine

LUCKY_DIMON [66]

Answer:

$\frac{2}{n+2}$

Step-by-step explanation:

Given

Let the total probability be 1

Probability that Brian wins a raffle = n/n+2

Probability that Brian does not win a raffle = 1 - Probability that Brian wins a raffle

Probability that Brian does not win a raffle = 1 - (n/n+2)

Probability that Brian does not win a raffle = $\frac{n+2-n}{n+2}$

Probability that Brian does not win a raffle = $\frac{2}{n+2}$

Hence required fraction is $\frac{2}{n+2}$

7 0

3 years ago

Solve for x 4x+14 help me please

pochemuha

Factor 2 out of 4x+14
2(2x+7)
Hope this helps!

4 0

3 years ago

What are the dimensions of a rectangle with an area of 45 square inches and a perimeter of 28 inches? A) 8 in. x 6 in.B) 9 in. x

grigory [225]

Length be x
Breadth be y

$\\ \rm\Rrightarrow 2x+2y=28$

$\\ \rm\Rrightarrow x+y=14$ --(1)

And

xy=45

$\\ \rm\Rrightarrow (x-y)^2=(x+y)^2-4xy$

$\\ \rm\Rrightarrow (x-y)^2=14^2-4(45)=196-180$

$\\ \rm\Rrightarrow (x-y)^2=16$

$\\ \rm\Rrightarrow x-y=4$ --(2)

Adding (1) and (2)

2x=18
x=9

And

9+y=14=>y=5

7 0

3 years ago

Read 2 more answers

What is the answer to number 11 and why

aleksley [76]

B. Because the line is negative so it is rise over run meaning down one over two. Then the plus two is the b or y intercept in the equation y= my+b so you would go up two from the (0,0) to start the do the rise over run

6 0

3 years ago

Im confused on how to solve this

andre [41]

Answer:

x=7

Step-by-step explanation:

7x-7=4x+14

3x=21

x=7

8 0

4 years ago

Read 2 more answers