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2 years ago

ASAP!!!!!

Mathematics

1 answer:

In-s [12.5K]2 years ago

4 0

Think of the given points as endpoints of vectors.

The point (3, 1) is the terminus of the vector 3 i + j.

The point (-4, 2) is the terminus of -4 i + 2 j.

By the "triangle rule" for vector summation, the vector starting at (3, 1) and ending at (-4, 2) is the difference between these two vectors.

(-4 i + 2j) - (3i + j) = -7 i + j

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Cost to store: $65 Markup:25% Selling price:?

Gekata [30.6K]

100% + 25% is 120% then 120 as a decimal 1.20 then you do 1.20 x 65 = 78
soo the selling price is $78

4 0

3 years ago

What was the first error that Andrea made?

Free_Kalibri [48]

It’s Y-61=6712 • (x-48)

4 0

3 years ago

Read 2 more answers

I need help with answering question 16 on spring board algebra 2 pg. 35 the questions says solve the system using substitution t

Jet001 [13]

Answer:

x = 147

y = 32

Step-by-step explanation:

I got a bit confused by what you said, but I think you need help being shown how to do 16, so hopefully the following will help!

So to use substitution you "plug in" the expression into each other. Here is what to do for 16!

[] First, we need to find which expression can be plugged in. The first one works! It is set equal to x, so we can easily plug it in.

[] Now, we need to set up our equation!

3y - x = -13

4y + 19 = x

3y - 4y + 19 = -13

[] Now, we solve for y and simplfy!

3y - 4y + 19 = -13

-y = -32

(I subtracted 19 for both sides and combined the y's)

Now I am going to add -y and -32 to both sides so I can have it be positive.

y = 32

[] Last, but not least, we solve for x!

- Plug the y you just solved into the equation for x

4y + 19 = x

4(32) + 19 = x

128 + 19 = x

147 = x

(hopefully this is correct, have a nice day!)

5 0

3 years ago

Choose all the fractions that are in simplest form. 4/26 8/21 6/19 9/10 10/22

dimulka [17.4K]

4/26 can be simplified by 2. So, this is not the answer.
8/21 cannot be simplified. So, it is one of the answers.
6/19 cannot be simplified. So, it is one of the answers.
9/10 cannot be simplified. So, it is one of the answers.
10/22 can be simplified by 2. So, this is not the answer.

So, the fractions in simplest forms are 8/21, 6/19, and 9/10.

3 0

3 years ago

1. Solve the system using substitution

Molodets [167]

X+y=8
y=3x

You would want to substitute the y for the 3x
x+3x=8

You can now add the x with the 3x to get 4x
4x=8

Now divide the 4 on both side to solve for x
x=2

Now to solve for y just substitute the x for the 2
y=3(2)

Now multiply the 3 and the 2 to solve for y.
y=6

So your corrct answer is B:(2,6)

6 0

3 years ago