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3 years ago

Hi I really need help with this question please

Mathematics

1 answer:

sdas [7]3 years ago

8 0

Answer:

parallel = y=3/4x -1

perpendicular = y= -4/3x + 22/3

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I need this ASAP!!please help

Annette [7]

What are you supposed to solve

3 0

3 years ago

Read 2 more answers

Literal equations Solve P=2(l+W) for l

Nina [5.8K]

 P = 2(L +W)

Divide each side of the equation by 2 : P/2 = L + W

Subtract W from each side :  P/2 - W = L

6 0

3 years ago

Read 2 more answers

The rounding rule for a confidence interval for a proportion is to round off to three decimal places.

MA_775_DIABLO [31]

B.false
Because the number needs to be 5 or up

7 0

3 years ago

15. John works for the local used car dealership. His weekly salary is $375 plus a commission based on the number of cars that h

ratelena [41]

Answer:

S = 935 when t ≤ 7

S = (180t - 325) when t > 7

Step-by-step explanation:

John's weekly salary = $375 + commission on number of cars he sell

Commission for the first seven cars sold = $80 per car

Commission above 7 cars = $180 per car

If John sells t cars each week then commission earned by John

= 80×7 + 180(t - 7)

So the salary for week = 375 + commission

S = 375 + 560 + 180(t - 7)

S = 935 + 180(t - 7)

S = 935 when t ≤ 7

(180t - 325) when t > 7

3 0

4 years ago

A toddler is allowed to dress himself on Mondays, Wednesdays, and Fridays. For each of his shirt, pants, and shoes, he is equall

avanturin [10]

Answer:

0.0286 = 2.86% probability that today is Monday.

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Dressed correctly

Event B: Monday

Probability of being dressed correctly:

100% = 1 out of 4/7(mom dresses).

(0.5)^3 = 0.125 out of 3/7(toddler dresses himself). So

$P(A) = 0.125\frac{3}{7} + \frac{4}{7} = \frac{0.125*3 + 4}{7} = \frac{4.375}{7} = 0.625$

Probability of being dressed correctly and being Monday:

The toddler dresses himself on Monday, so (0.5)^3 = 0.125 probability of him being dressed correctly, 1/7 probability of being Monday, so:

$P(A \cap B) = 0.125\frac{1}{7} = 0.0179$

What is the probability that today is Monday?

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.0179}{0.625} = 0.0286$

0.0286 = 2.86% probability that today is Monday.

4 0

3 years ago