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2 years ago

A line has a slope of -3 and passes through the point (-3, 8). What is the equation of the line?

Mathematics

1 answer:

Rzqust [24]2 years ago

8 0

Answer:

y = -3x - 1

Step-by-step explanation:

don't mind this hebusesjaygsnzoinske

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Find the slope of the line through the pair of points.

ANEK [815]

15/8
Bc I just did this

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Quadratic Equation

Natasha_Volkova [10]

Step-by-step explanation:

The sum of ages of two friends is 13 years.

The product of their ages is 42.

Let the age of 1st friend and 2nd friend is x, y respectively.

1 st condition= The sum of ages of two friends is 13 yrs.

i.e x+y = 13........ (I)

2nd condition= The product of their ages is 42.

i.e X*y = 42........(ii)

From equation (I)

X+y = 13

or, X = 13-y........ (iii)

Putting the equation (iii) in equation (ii).

X*y= 42

(13-y) * y = 42

13y - y^2 = 42

${y}^{2} - 13y + 42 = 0$

${y}^{2} - (7 + 6)y + 42= 0$

${y}^{2} - 7y - 6y + 42 = 0$

$y(y - 7) - 6(y - 7) = 0$

$(y - 6) (y - 7) = 0$

Either; y-6 = 0

y = 6

Or;

y-7=0

y = 7

Keeping the value of y as "7" in equation (ii)

x*y = 42

7x = 42

X = 42/7

Therefore, the value of X is 6.

Therefore, either 1st friend is 6 years and 2nd is 7 years.

Hope it helps...

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2 years ago

Dwight sits near a bowl of candies in his office. He observed how many candies each person took in a sample of 444 visits. Here

baherus [9]

Answer: B

Step-by-step explanation:

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Assume a random sample of size n is from a normal population. Assume a single sample t test is used to for hypothesis testing. T

valentinak56 [21]

Answer:

True

Step-by-step explanation:

Type I and Type II are not independent of each other - as one increases, the other decreases.

However, increases in N cause both to decrease, since sampling error is reduced.

A small sample size might lead to frequent Type II errors, i.e. it could be that your (alternative) hypotheses are right, but because your sample is so small, you fail to reject the null even though you should.

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3 years ago