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3 years ago

Simplify fully 9(x+7)(x+7)/3(x-1)(x+7)

Mathematics

1 answer:

Marizza181 [45]3 years ago

3 0

Answer:

60x

Step-by-step explanation:

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What is the radius of a circle with a sector area of 7pi sq. ft. and an arc whose measure is 70Â°? 6 feet 10 feet 18 feet

Svetlanka [38]

Here we have to use the formula of area of sector, which is

$A = (\frac{\Theta}{360})*\pi r^2$

Theta = 70 degree, and radius is unknown here. It is given that area = 7 pi .

Substituting the given values in the formula, we will get

$7 \pi = (\frac{70}{360})*\pi r^2$

$\frac{7 \pi * 360}{70 \pi}=r^2$

$36 = r^2=>r=6ft$

Therefore the correct option is the first option .

5 0

3 years ago

Pls help me the question is on the picture

Ivanshal [37]

Answer:

x =149

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Eden bought a new phone. The phone’s retail price is $199. In addition, she paid sales tax of 8% of the retail price. A few days

Artyom0805 [142]

Answer:

The price paid for the phone after tax and the mail-in rebate is $265 (an approximate value of $264.92).

Step-by-step explanation:

Given:

Retail price of the phone $199, sales tax 8% of the retail price and rebate $50.

So, for getting the price paid for phone add the retail price, sales tax and rebate.

Now, the amount of sales tax :

8% of $199

⇒ $\frac{8}{100}\times199$

⇒ $0.08\times199$

⇒ $15.92$ .

Sales tax is $15.92.

According to question:

$199+15.92+50$

$=264.92$ .

Therefore, the price paid for the phone after tax and the mail-in rebate is $265 (an approximate value of $264.92).

6 0

3 years ago

Pete is a very good student . The probability that he studies for his test and then passes it is 7/10 If the probability that Pe

antiseptic1488 [7]

Answer:

The probability that Pete passes his test given that he studied = (8/10) = (4/5) = 0.80

Step-by-step explanation:

Let the event that Pete studies be S.

Let the event that Pete passes the test be P.

The probability that he studies for his test and then passes it is P(S n P) = 7/10

The probability that Pete studies is P(S) = 7/8

The probability that Pete passes his test given that he studied = P(P|S)

The conditional probability, P(A|B) is given mathematically as

P(A|B) = P(A n B) ÷ P(B)

So, the required probability, P(P|S) will be

P(P|S) = P(P n S) ÷ P(S)

P(P n S) = P(S n P) = (7/10)

P(S) = (7/8)

P(P|S) = P(P n S) ÷ P(S)

= (7/10) ÷ (7/8)

= (7/10) × (8/7)

= (8/10) = (4/5) = 0.80

The probability that Pete passes his test given that he studied = (8/10) = (4/5) = 0.80

Hope this Helps!!!

3 0

3 years ago

How many different vacation combinations do you have to choose from?

olga_2 [115]

Answer:

12 different vacation caombinations

Step-by-step explanation:

has 3 options of Theme Park and 4 options of length of trip

$C=(3)(4)=12$

Hope this helps

3 0

2 years ago