1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vsevolod [243]
2 years ago
10

Youre amazing!!! could you help me? 50 points!!! Write an expression that can be used to produce vector d from vector c, and exp

lain how you determined that expression.

Mathematics
1 answer:
andrew-mc [135]2 years ago
8 0

Answer:

Multiply vector c by the scalar -1/2.

Step-by-step explanation:

Look at vector c.

It has an x component of 4 and a y component of 4.

You can write vector c as a sum of its components using unit vectors in the x direction (i) and in the y direction (j).

c = 4i + 4j

Now look at vector d, and write it also as a sum of its x and y components.

d = -2i - 2j

Now ask yourself, what operation do I do to 4 to end up with -2?

One answer is to multiply 4 by -1/2.

d = (-1/2)c = (-1/2)(4i) + (-1/2)(4j) = -2i - 2j

That worked. By multiplying vector c by the scalar -1/2, you end up with vector d.

You might be interested in
Sammy buys 5 pounds of oranges for 7.50 at this rate how much would 8 pounds of oranges cost
Nadusha1986 [10]

The cost of 8 pounds of oranges based on the total cost of 5 pounds bought is 12.00

What is the cost for a pound of oranges?

The cost of a pound of oranges based on the rate at which 5 pounds were bought and 8 pounds would also be bought is determined as the amount paid for 5 pounds of oranges divided by the number of pounds of oranges bought

cost per pound of oranges=cost of 5 pounds/5 pounds

cost per pound of oranges=7.50/5

cost per pound of oranges=1.50

Based on the 1.50 per pound, the cost of 8 pounds is the cost per pound multiplied by 8 pounds

cost of 8 pounds of oranges=1.50*8pounds

cost of 8 pounds of oranges=12.00

Find out more about unit cost on:brainly.com/question/17430583

#SPJ1

3 0
2 years ago
1/4 = 8/k HELP! WILL GIVE BRAINLIST IF CORRECT ANSWER SND CORRECT FORMAT
gtnhenbr [62]

Answer:

I think 32 because 32/4=8

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Paul wanted to bring his family to the Children’s Museum. There was an exhibit with carnival rides. The tickets for each ride we
Nostrana [21]

We want to define and solve a linear equation to model the given case.

The answers are:

a) x = number of tickets, y = total cost.

b) y = $1.35*x + $6.35

We know that:

The tickets for each ride were $1.35 per ticket.

Paul purchased 30 tickets

He spent a total of $46.85 (on tickets and admission)

The cost for the 30 tickets is:

30*$1.35 = $40.50

a) Now we can define two variables:

y = total cost

x = number of tickets

b) the linear equation would be:

y = $1.35*x + P

Where P is the price of admission.

And we know that the total cost for 30 tickets is $46.85, then we have:

$46.85 = $40.50 + P

$46.85 - $40.50 = P = $6.35

So the admission price is $6.35

This means that the linear equation is:

y = $1.35*x + $6.35

c) Brief explanation, we have the variable y that represents the total cost, it is equal to the admission price (which we found) plus $1.35 times the number of tickets bought (x).

If you want to learn more, you can read:

brainly.com/question/13738061

3 0
3 years ago
Find the missing probability. P(A)=720,P(B)=35,P(A∩B)=21100 ,P(A∪B)=?
Dimas [21]
P (A U B) = 37/50

7/20+3/5+21/100
5 0
3 years ago
If I had 12 marbles and then gave two away and now I have ten out of twelve marbles left what fraction of the marbles did I give
Ostrovityanka [42]
Okay so you have 10/12 marbles (ten out of twelve). Both 10 and 12 can be divided by 2, right? So divide both of those by 2 and you get 5/6. That’s your answer. Hope this helps!
4 0
3 years ago
Read 2 more answers
Other questions:
  • The initial price of a home entertainment system is $34,000. It is discounted by 10% and then by a further 26%. Find the price o
    14·1 answer
  • Lines AB and BC are perpendicular. The dashed rays bisect angles ABD and
    8·1 answer
  • Point Q(-1,5) is reflected across the line x=-1. What are the coordinates of its image?
    12·1 answer
  • 2h - 5 - 6h = 12 + 3h - 4​
    6·1 answer
  • A rental car company claims the mean time to rent a car on their website is 60 seconds with a standard deviation of 22 seconds.
    9·1 answer
  • Need help quick! Thank you
    6·1 answer
  • Herman and Tamara paid 100$ for 12 large pizzas, which included a 16 dollar tip. How much did each pizza cost
    14·1 answer
  • 4 and 2/3 divided by 3/4 as a fraction
    15·1 answer
  • Find the perimeter of this semi-circle with diameter, d = 39cm. Give your answer rounded to 1 DP.
    14·1 answer
  • Julian has 1/2 pan of cranberry bars left from the picnic. His family eats 5/8 of the remaining cranberry bars for breakfast. Wh
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!