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4 years ago

(3,4) and (12,-2) what is the y intercept

Mathematics

1 answer:

Lapatulllka [165]4 years ago

3 0

Answer:

Step-by-step explanation:

First I found the slope, and then I plugged a point into the equation as X and Y, and got the Y-int

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Books: Josephine has seven chemistry books, three history books, and six statistics books. She wants to choose one book of each

Jobisdone [24]

Answer:

Step-by-step explanation:

we have totally 7+3+6=16 books.

let us choose one book from the all these books;

by using permutation formula we will get the answer

$P(n,r)=\frac{(n)!}{(n-r)!} \\$

$P(7,1)=\frac{(7)!}{(7-1)!} = 7\\\\\ P(3,1)=\frac{(3)!}{(3-1)!} = 3\\\\ P(6,1)=\frac{(6)!}{(6-1)!} = 6\\\\$

all these process are related to each other so we should multiply them

7*3*6=126

4 0

3 years ago

Find a vector of magnitude 3 in the direction of v=4i-3k

pochemuha

Answer:

$\frac{12i}{5} - \frac{9k}{5}$

Step-by-step explanation:

The magnitude of a vector v = ai + bk is

$|v| = \sqrt{a^{2} + b^{2}$

In this problem, we have that:

Find a vector of magnitude 3 in the direction of v=4i-3k:

The first step is finding the unit vector of v, $v_{u}$ .

$|v| = \sqrt{4^{2} + (-3)^{2}} = 5$

$v_{u} = \frac{4i}{5} - \frac{3k}{5}$

Magnitude 3, same direction.

We multiply the unit vector by +3, since it is in the same direction. If it was in the opposite direction, we would have multiplied by -3.

The answer is:

$\frac{12i}{5} - \frac{9k}{5}$

5 0

3 years ago

The ratio of the number of adults to the number of children in a bus 7:5 if there are 15 children in the bus how many adults are

ehidna [41]

Answer:

There would be 21 adults on the bus.

7:5

21:15

5 0

3 years ago

Sandra rode her bike 5 times as many miles as Barbara. If b, the distance Barbara rode, equals 3.4 miles, what is the correct ex

uranmaximum [27]

Well, Sandra would've had to ride her bike 17 miles, so the answer is b because when a number is next to a letter, you have to times it. So, 5 times by b equals 17, so that is the answer. Hope it helps!

6 0

4 years ago

Read 2 more answers

the lowest point in the united states is located in death valley and is 282 below sea level. the highest point in the united sta

Setler79 [48]

In a number line which goes from north to south, the upper portion has positive numbers and the lower portion has negative numbers.
so the elevation at Mt. McKinley will be written as +20,236
and at death valley it will be -282

4 0

3 years ago

Read 2 more answers