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
ValentinkaMS [17]
3 years ago
15

What is the minimum force required to prevent a ball weighing 22.6 lb from rolling down a ramp which is inclined at 39.0 degrees

with the horizontal?
A. 7.1 lb

B. 8.8 lb

C. 17.6 lb

D. 14.2 lb
Mathematics
1 answer:
Alona [7]3 years ago
7 0
The correct answer is 14.2 lb which is choice D.

Let:

F = minimum force required to prevent ball from rolling down the ramp

The formula will be:

F = w * sin theta

F = w * sin (39 degrees)

F = 22.6 * sin (39) 
= 14.2 lb (this is rounded to the nearest tenth)
You might be interested in
Determine the slope of the line that contains the given points.
nydimaria [60]

Answer:

slope = 2/3

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Which statements describe a residual plot for a line of best fit that is a good model for a scatterplot? Check all that apply. T
lidiya [134]

Answer:

The points are randomly scattered with no clear pattern

The number of points is equal to those in the scatterplot.

Step-by-step explanation:

The points in the residual plot of the line of best fit that is a good model for a scatterplot are randomly scattered with no clear pattern (like a line or a curve).

The number of points in the residual plot is always equal to those in the scatterplot.

It doesn't matter if there are about the same number of points above the x-axis as below it, in the residual plot.

The y-coordinates of the points are not the same as the points in the scatterplot.

8 0
3 years ago
Read 2 more answers
A girl scout was selling boxes of cookies. In a month, she sold both boxes of chocolate chip cookies ($1.25 each) and boxes of p
Katena32 [7]

Answer:

Number of plain cookie boxes sold = 785 boxes

Step-by-step explanation:

Given: Cost of a chocolate chip cookie box = $1.25

Cost of a plain cookie box = $0.75

Total number of boxes sold = 1585

Total cost of the sold boxes = $1588.75

Let, number of plain cookie boxes sold = x

Number of chocolate chip cookie boxes sold = 1585 - x

So,

Total cost = total cost of the sold plain cookie boxes + total cost of the sold chocolate chip cookie boxes

$1588.75 = x ($0.75) + (1585 - x) ($1.25)

1588.75 = 0.75 x + 1981.25 - 1.25 x

0.5 x = 392.5

Therefore,

<u>Number of plain cookie boxes sold: x = 392.5 ÷ 0.5 = 785 boxes</u>

3 0
3 years ago
Read 2 more answers
What is the surface area of a sphere with radius 4?
mario62 [17]

Answer: 64 units

Step-by-step explanation:

Remember, the formula to find surface area given radius is 4\pi r^2. Let's add in the given information:

4pi4^2 =

4pi16

64pi!

Hope this helps, please consider making me Brainliest.

5 0
2 years ago
Need help ASAP I need the right answers
Nana76 [90]
1 is A, 2 is B, 4 is C, 5 is B, 6 is C, cant answer 4 bc it’s cut off
3 0
3 years ago
Other questions:
  • What equation would represent the relationship between the x-values and y-values in the graph?
    9·1 answer
  • A division equation that has solution of 1,350
    7·2 answers
  • ((W to the power of 2)) to the power of 4
    10·2 answers
  • How much is 1 mi in ft
    10·1 answer
  • Rotation of LMN!!!!!
    7·2 answers
  • Find f(-5) f(x) -4x + 3
    15·1 answer
  • Use the conversion formula to write the equation for the new function, F(t).
    5·1 answer
  • A restaurant customer left ​$1.30 as a tip. The tax was 7% and the tip was 10​% of the after tax cost. Which information is not
    9·1 answer
  • I need help with this questions ASAP!
    12·1 answer
  • Round 56,477,812 to the nearest hundred thousand,
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!