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3 years ago

What can be an equation of the line with a slope of −7 that passes through the point (−3,12).

Mathematics

1 answer:

laiz [17]3 years ago

8 0

Answer:

y=-7x-9

Step-by-step explanation:

y=mx+b(where m is slope and b is y intercept)

y=-7x+b

plugging the number in we get

12=-7(-3)+b

12=21+b

b=-9

so y= -7x-9

if you find my answer helpful please mark as brainliest.

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A candy company claims that 20% of the candies in its bags are colored green. Steve buys 30 bags of 30 candies, randomly selects

Allisa [31]

Answer:

The probability of Steve agreeing with the company’s claim is 0.50502.

Step-by-step explanation:

Let X denote the number of green candies.

The probability of green candies is, p = 0.20.

Steve buys 30 bags of 30 candies, randomly selects one candy from each, and counts the number of green candies.

So, n = 30 candies are randomly selected.

All the candies are independent of each other.

The random variable X follows a binomial distribution with parameter n = 30 and p = 0.20.

It is provided that if there are 5, 6, or 7 green candies, Steve will conclude that the company’s claim is correct.

Compute the probability of 5, 6 and 7 green candies as follows:

$P(X=5)={30\choose 5}(0.20)^{5}(1-0.20)^{30-5}=0.17228\\\\P(X=6)={30\choose 6}(0.20)^{6}(1-0.20)^{30-6}=0.17946\\\\P(X=7)={30\choose 7}(0.20)^{7}(1-0.20)^{30-7}=0.15328$

Then the probability of Steve agreeing with the company’s claim is:

P (Accepting the claim) = P (X = 5) + P (X = 6) + P (X = 7)

= 0.17228 + 0.17946 + 0.15328

= 0.50502

Thus, the probability of Steve agreeing with the company’s claim is 0.50502.

7 0

3 years ago

Mr. Townsend needs to make 13 pairs of butterfly wings for costumes for a play. Each pair of wings is made with ¾ yard of fabric

EastWind [94]

you will need 9 and 3/4 for the 13 pairs of butterfly wings. if you were doing that, the total price would be $78. if you needed to have a whole number for yards, you would round up to 10 and the total price would be $80

4 0

3 years ago

Andrew makes $10 per hour babysitting and $8 per hour working at the grocery store. He will need to make atleast $650 to buy a n

Ivahew [28]

Answer:

True

Step-by-step explanation:

Since babysitting and working at the grocery store are two different things, you would need two different variables.

So x and y would be the correct representation.

Hope this helps ya!!

3 0

3 years ago

Solve each proportion 6/5 = n/7

ioda

I hope this helps you

n=6.7/5

n =42/5

n=8,4

3 0

3 years ago

Read 2 more answers

Fez rolls 2 fair dice and adds the results from each.

Anestetic [448]

Answer:

7/12.

Step-by-step explanation:

The favourable outcomes are (1,6), (2,5), (2,6), (3,4), (3,5), (3,6) (4,5), (4,6) (5,6),

(6,1), (5,2) (6,2) (4,3) (5,3) (5,4) (6,3) (6,4) (6,5) (4,4) (5,5) (6,6)

= 21.

Total number of possible outcomes = 6*6 = 36.

So it's 21/36

= 7/12.

8 0

3 years ago