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
Yanka [14]
3 years ago
10

What is the dot product of u = (11, 4, -2) and v = (-1, 3, 8)

Mathematics
1 answer:
NARA [144]3 years ago
4 0
11.-1+4.3+-2.8
-11+12-16
-15
I think
You might be interested in
What additional information could be used to prove that ΔXYZ ≅ ΔFEG using ASA or AAS? Check all that apply. ∠Z ≅ ∠G and XZ ≅ FG
meriva

Answer:

∠Z ≅ ∠G and XZ ≅ FG or ∠Z ≅ ∠G and XY ≅ FE  are the additional information could be used to prove that ΔXYZ ≅ ΔFEG using ASA or AAS.

6 0
3 years ago
Then, the store marks up the retail price to `150\%` of the wholesale price. Later, they put the mattress on sale for `50\%` off
sergeinik [125]

Answer:

  $2400

Step-by-step explanation:

At 50% off, the sale price is half the original price. Then the original price is double the sale price, or ...

  retail price = 2 × $1200 = $2400

__

<em>Additional comment</em>

The wholesale price is $2400/1.50 = $1600. The store took a loss of $400 on that sale.

3 0
2 years ago
1. Which ordered pairs are solutions to the inequality –3x + y ≥ 7?
Murrr4er [49]
Q1. The answers are (–1, 8), (0, 7), (3, 18)

<span>–3x + y ≥ 7
</span>Let's go through all choices:

<span>(–2, –3) 
</span>(-3) * (-2) + (-3) ≥ 7
6 - 3 ≥ 7
3 ≥ 7       INCORRECT

(–1, 8) 
(-3) * (-1) + 8 ≥ 7
3 + 8 ≥ 7
11 ≥ 7       CORRECT

(0, 7) 
(-3) * 0 + 7 ≥ 7
0 + 7 ≥ 7
7 ≥ 7       CORRECT

(1, 9) 
(-3) * 1 + 9 ≥ 7
-3 + 9 ≥ 7
6 ≥ 7       INCORRECT

(3, 18) 
(-3) * 3 + 18 ≥ 7
-9 + 18 ≥ 7
9 ≥ 7       CORRECT



Q2. The answers are:
5x + 12y ≤ 80
x ≥ 4
<span>y ≥ 0
</span>
<span>x - small boxes
</span><span>y - large boxes

</span>He has x small boxes that weigh 5 lb each and y large boxes that weigh 12 lb each <span>on a shelf that holds up to 80 lb:
5x + 12y </span>≤ 80

Jude needs at least 4 small boxes on the shelf: x ≥ 4

Let's check if y can be 0:
5x + 12y ≤ 80
5x + 12 * 0 ≤ 80
5x + 0 ≤ 80
5x ≤ 80
x ≤ 80 / 5
x ≤ 16

x ≥ 4 can include x ≤ 16

So, y can be 0: y ≥ 0
8 0
3 years ago
Sarah is purchasing a new shirt on sale for $25. What will her TOTAL COST be if sales tax is 8%?
xxTIMURxx [149]

Answer:

$27.00 even.

Step-by-step explanation:

25 x 0.08 = 2

take the 2 and add it to the orginal price

25 + 2 = 27

5 0
3 years ago
372 students ride the bus to school. if this number is 60% of school enrollment, then hoe many students are enrolled
user100 [1]
Ratio and proportion 372/x=60/100 cross multiply x=620 students
6 0
4 years ago
Other questions:
  • Solve the equation for the given variable.<br> 2(x + 6) = 8
    8·1 answer
  • Help solve x for this
    11·2 answers
  • How do you compare fractions factors and products
    8·1 answer
  • If 3 times a number is decreased by 12 the result is 5
    13·1 answer
  • How do you write sum 81w+48 a product of two factors
    10·1 answer
  • Susan buys the items listed below at a grocery store.
    11·1 answer
  • The ratio of cups of sugar to cups of flour needed to bake cookies is 1:5.
    14·1 answer
  • Solve for x in the triangle. round your answer to the nearest tenth
    7·1 answer
  • Four Boys and Five Girls went to a water park. The total cost for the group was $144. What was the cost of admission for each pe
    7·2 answers
  • Please help me this is due today WORTH 40pts
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!