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
grandymaker [24]
3 years ago
9

Given the vectors a and b, with lengths 21 and 44 respectively, and cosine of the angle between them equal to StartFraction 7 Ov

er 12 EndFraction, find the scalar projection of a onto b and a · b.
ab =
a · b =
Mathematics
2 answers:
rjkz [21]3 years ago
8 0

Answer:

ab= 49/4

a . b= 539

Step-by-step explanation:

Edge2020

algol [13]3 years ago
3 0

Answer:

First = 49/4

Second = 539

Step-by-step explanation:

You might be interested in
What is the value of x? Please help. Will mark brainliest ASAP
Natasha_Volkova [10]

sin90°/47 = sin17°/x

xsin90° = 47sin17°

x = 47sin17°/sin90°

x = 13.741470121969

x ≈ 13.74

Hope this helps! ;)

6 0
3 years ago
Read 2 more answers
Can someone help me with this problem?
dsp73

Answer:

Lin

Step-by-step explanation:

5/7*2/2=10/14

3/2*7/7=21/14

10/14+21/14=31/14

3 0
2 years ago
Read 2 more answers
When the outliers are removed, how does the mean change? (2 points) dot plot with 1 on 50, 1 on 76, 1 on 78, 2 on 79, 1 on 80, 1
777dan777 [17]

Answer:

Answer: The mean increases by 3

Step-by-step explanation:

The original data set is 

{50, 76, 78, 79, 79, 80, 81, 82, 82, 83}

The outlier is 50 because it is not near the group of values from 76 to 83 which is where the main cluster is.

The original mean is M = (50+76+78+79+79+80+81+82+82+83)/10 = 77

If we take out the outlier 50, the new mean is N = (76+78+79+79+80+81+82+82+83)/9 = 80

So in summary so far

old mean = M = 77

new mean = N = 80

The difference in values is N-M = 80-77 = 3

So that's why the mean increases by 3

8 0
3 years ago
The dimensions of a rectangles are 8cm and 12cm. What is the ratio of its length to its perimeter?
kari74 [83]

Answer:

Dimensions = 8 CM and 12 CM

length = 12 CM

width = 8 cm

perimeter = 2 ( length + width)

= 2( 12 + 8)

= 2 ( 20)

= 40 CM

ratio = 12/40

= 6/20

= 3/10

<h2>= 3 : 10 </h2>
3 0
2 years ago
Simple equation: <br>6m=12​
EastWind [94]

Step-by-step explanation:

  • Divide both sides of the equation by the same term

6m/6 =12/6

  • Cancel terms that are in both the numerator and denominator
  • Divide the numbers

m=2

5 0
3 years ago
Other questions:
  • What's the answer to 243.875 to nearest tenth,hundredth, ten,and hundred
    6·2 answers
  • AWNSER FOR 99 POINTS!What is the volume of the pyramid? A. 2470 cm3 B. 4940 cm3 C. 7410 cm3 D. 14,820 cm3
    13·2 answers
  • I need help. Please anyone help :D
    8·1 answer
  • Two students describe the sides of right triangle ABC in relation to ∠B. Triangle A B C is shown. Angle A C B is a right angle.
    5·2 answers
  • What year is 40040040040049039qji34btuewrbgsnbbg snk g smart
    15·1 answer
  • Now find the difference what is 2/3 - 3/5
    15·1 answer
  • B. (x + 3)(x^2 – 3x + 27 )=
    9·1 answer
  • When solving 8,411 ÷ 52, you decide to start by subtracting 100 groups of 52. What is the remainder?
    9·2 answers
  • Angela is planning to cycle 200 km to a hotel for an overnight stay. She cycles at a constant speed of 25km/hr. How long did it
    7·1 answer
  • HELP!!!!!! 100 POINTS!!!!!!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!