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
Ilya [14]
3 years ago
13

Why do you think the cart rolls farther when it starts from a higher position?

Mathematics
2 answers:
Afina-wow [57]3 years ago
8 0

Answer:

It has higher PE which can be converted into kinetic energy. The car also has had more work done on it when its at a higher position.

Step-by-step explanation:

yuradex [85]3 years ago
6 0

This is because the cart gains speed as it goes from the top of higher point to bottom.

You might be interested in
Given the expression -15 (10 2/3) A. Rewrite the expression using distributive property B. Evaluate the expression in show all y
Ainat [17]

9514 1404 393

Answer:

  -160

Step-by-step explanation:

  -15(10 2/3) = -15(10) +(-15)(2/3) = -150 -30/3 = -150 -10 = -160

The mixed number can be written as the sum of an integer and a fraction. The multiplier then multiplies the integer and the fraction separately, and the two products are added.

8 0
3 years ago
(20 pts!) if the base of the roof has length 40 feet and x=30, which of the following gives the height of the roof?
musickatia [10]

Answer:

23.094 ft approximately

(If you want your answer in a different format, let me know please.)

Step-by-step explanation:

I would have solve this using tangent since the side opposite to x is asked for and the adjacent side to side is given as having a measurement of 40 ft.

But I think they want you to use the formula:

l=\frac{b}{\cos(x)}.

l=\frac{40}{\cos(30)}

Input into calculator:

l=46.188 (approximation)

l represents the length of the roof.

So we have l=46.188 and b=40.

We must use the Pythagorean Theorem to find the height,h, for of the roof.

l is the hypotenuse.

h^2+40^2=46.188^2

h^2+1600=2133.331

Subtract 1600 on both sides:

h^2=533.331

Take square root of both sides:

h=23.094

The answer is 23.094 feet for the height that roof reaches on the building.

I want to show you another way:

\tan(x)=\frac{\text{opposite}}{\text{adjacent}}

\tan(30)=\frac{h}{40}

Multiply both sides by 40:

40\tan(30)=h

Input into calculator:

23.094=h

I didn't do it this way because your problem suggested you use their formula to find the height.

8 0
3 years ago
Read 2 more answers
Find the measure of /_ MFZ
marshall27 [118]

Given:

MZ\cong PZ

m\angle MFZ=(x+9)^\circ

m\angle PFZ=(2x-1)^\circ

To find:

The measure of angle MFZ.

Solution:

In triangles MFZ and PFZ,

m\angle FMZ\cong \angle FPZ           (Right angle)

MZ\cong PZ           (Given)

FZ\cong FZ           (Common side)

\Delta MFZ\cong \Delta PFZ                  (HL congruent postulate)

\angle MFZ\cong \angle PFZ           (CPCTC)

m\angle MFZ=m\angle PFZ

x+9=2x-1

9+1=2x-x

10=x

The value of x is 10.

The measure of angle MFZ is:

m\angle MFZ=(x+9)^\circ

m\angle MFZ=(10+9)^\circ

m\angle MFZ=19^\circ

Therefore, the measure of angle MFZ is 19 degrees.

7 0
2 years ago
Select all that apply.
Viktor [21]
Answer:


0.5


Explaintion: because it is half of the 50%
8 0
3 years ago
Solve this quadratic equation using the quadratic formula.<br><br> x2 + 8x - 5 = 0
jasenka [17]
X^2 + 8x - 5 = 0
a = 1, b = 8, c = -5
x = ( - 8 + - sqrt(64 - 4*1*-5))/2
x = ( -8 + - sqrt(64+20))/2
x = ( -8 + - sqrt (84))/2
x = ( - 8 + - 2sqrt21))/2
x = -4 + - sqrt21
7 0
3 years ago
Other questions:
  • If you want to convert yards to feet what operation would you use
    10·2 answers
  • The triangles in the figure are similar: ΔABC ∼ ΔDEF. Which of the following statements must be true? options: A) AB/DE=BC/EF=CA
    9·2 answers
  • Write an equation that can be used to solve the following: The sum of a number, n, and a number 5 larger than it is 41.
    6·2 answers
  • Rewrite √-100+26 in complex number notation
    14·1 answer
  • What is x + 5?? need help
    14·1 answer
  • HELP ME THANKS +×+
    5·2 answers
  • Which number produces an irrational number when added to 0.4?
    12·1 answer
  • Help me please will give brainliest
    9·2 answers
  • H(x)=3x^2+7<br> h(0)<br> help!
    7·1 answer
  • 7 1/8 - 5 2/3 = <br><br> Whois I’ve answer to this problem in fraction form? Step by step please?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!