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
Mamont248 [21]
3 years ago
12

Find a • b. u = <8,7>, v=<9,7>

Mathematics
1 answer:
drek231 [11]3 years ago
7 0

Answer:

\large\boxed{\vec{u}\circ\vec{v}=121}

Step-by-step explanation:

\vec{a}=,\ \vec{b}=\\\\\vec{a}\circ\vec{b}=x_ax_b+y_ay_b\\\\====================================\\\\\vec{u}=,\ \vec{v}=\\\\\vec{u}\circ\vec{v}=(8)(9)+(7)(7)=72+49=121

You might be interested in
a line with the slope of 1/3 passes through the points of (6,0). what is the equation in slope intercept form?​
sleet_krkn [62]

Answer:

y = 1/3x -2

Step-by-step explanation:

the equation for slope intercept form is y= mx + b.

m is the slope and b is where the line crosses the y-axis which is called the y-intercept.

to find the y-intercept plug in a coordinate on the line (6,0)

0 = 1/3(6) + b

then solve for b by first multiplying 1/3 by 6

0 = 2 + b

subtract 2 from both sides

-2 = b

and then you can plug b into the equation

y = 1/3x - 2

8 0
2 years ago
What percentage of Coach passengers did not check bags
Andreyy89

Answer:

7

Step-by-step explanation:

2

4 0
3 years ago
A.
ZanzabumX [31]

Answer:

$44.74

------Work------

6.25 x  5 = 31.25

31.25 + 12.50 = $44.74

Step-by-step explanation:

         May I have brainliest?  

              </3 PureBeauty

5 0
3 years ago
A university is building a new student center that is two- thirds the distance from the arts center to the residential complex.
Natasha2012 [34]

Answer:

C = (\frac{21}{5},\frac{33}{5})

Step-by-step explanation:

Given

Points: (1, 9) and (9, 3)

Ratio = 2/3

Required

Determine the coordinate of the center

Represent the ratio as ratio

Ratio = 2:3

The new coordinate can be calculated using

C = (\frac{mx_2 + nx_1}{n + m},\frac{my_2 + ny_1}{n + m})

Where

(x_1,y_1) = (1, 9)

(x_2, y_2) = (9, 3)

m:n = 2:3

Substitute these values in the equation above

C = (\frac{2 * 9 + 3 * 1}{3 + 2},\frac{2 * 3 + 3 * 9}{2 + 3})

C = (\frac{18 + 3}{5},\frac{6 + 27}{5})

C = (\frac{21}{5},\frac{33}{5})

Hence;

<em>The coordinates of the new center is </em>C = (\frac{21}{5},\frac{33}{5})<em></em>

7 0
3 years ago
45. A crew member on a boat releases a camera 2 feet above the surface of a lake. The
zzz [600]

Answer:

C. 4 feet below

Step-by-step explanation:

A crew member on a boat releases a camera 2 feet above the surface of a lake. That is +2 feet

The camera falls 6 feet. -6

+2+(-6)

2-6

-4

Below 4 feet

8 0
2 years ago
Other questions:
  • archy bought 15 gallons of gas for $23.85. Joe bought 16 gallons of gas for $24.48. who paid less per gallon?
    15·1 answer
  • Stuck on this pls help<br>Thx​
    9·1 answer
  • Write a sentence about different ways to show subtraction for a problem like 32-15
    8·2 answers
  • Please solve this with working asap much appreciated!!
    10·1 answer
  • Please help with math 30 pts
    9·1 answer
  • If a is 2 inches long, b is 5 inches long, and c is 12 inches long, what is the total volume of the two blocks?
    11·1 answer
  • On a road map, the distance from Green mount to Yorktowne is 2 inches. The map scale is
    10·1 answer
  • How much interest will $2,000 earn at an annual rate of 8% in one year if the interest is compound every half a year?
    6·2 answers
  • What is 2 1/3 + 1 divided by 3?
    9·1 answer
  • newton watches a movie with his friends. they watch 50% of the movie and then takes a break. they then watch the remaining 65 mi
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!