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
spin [16.1K]
3 years ago
8

Please help, need answer fast!

Mathematics
1 answer:
AleksandrR [38]3 years ago
3 0
The answer is
B. 13ab

5ab+9ab-ab
=(5ab+9ab)-ab
14ab-ab
=13ab

Hope it helped : )
You might be interested in
Marie's journal is 400 pages long. She has used 20% of the journal. How many pages has she used so far?
vitfil [10]

Answer:

40/ or /80

Step-by-step explanation:

Because 400 is a lot and if it's 100% is 400 right so we do 80% what would that be? we don't know right.

What about 100 pages that would be (im pretty sure) 40% or 50%.

I hope this helped!!!

GOODLUCK!!!!!!!!!!

:D

:3

<3

5 0
3 years ago
Read 2 more answers
What can you turn 343/81 into
andrew-mc [135]
It can be turned into 4•19/81 (mixed proper fractions) or in decimal 4.2346 (4dp)
5 0
3 years ago
A rocket is launched from a height of 3m with an initial velocity of 15 m/s at what time will the rocket be 13m from the ground?
dem82 [27]
Not sure of my answer but, velocity=delta d/delta t. t=delta d/ velocity
—> t=(13-3)/15=>10/15=2/3s
4 0
2 years ago
A mass of 5 kg stretches a spring 10 cm. The mass is acted on by an external force of 10sin( t ) N(newtons) and moves in a mediu
yKpoI14uk [10]

Answer:

A) C1 = 0.00187 m = 0.187 cm,  C2 = 0.0062 m = 0.62 cm

B)  A sample of how the graph looks like is attached below ( periodic sine wave )

C) w = \sqrt[4]{3} is when the amplitude of the forced response is maximum

Step-by-step explanation:

Given data :

mass = 5kg

length of spring = 10 cm = 0.1 m

f(t) = 10sin(t) N

viscous force = 2 N

speed of mass = 4 cm/s = 0.04 m/s

initial velocity = 3 cm/s = 0.03 m/s

Formulating initial value problem

y = viscous force / speed = 2 N / 0.04 m/s = 50 N sec/m

spring constant = mg/ Length of spring = (5 * 9.8) / 0.1 = 490 N/m

f(t) = 10sin(t/2) N

using the initial conditions of u(0) = 0 m and u"(0) = 0.03 m/s to express the equation of motion

the equation of motion = 5u" + 50u' + 490u = 10sin(t/2)

A) finding the solution of the initial value

attached below is the solution and

B) attached is a periodic sine wave replica of how the grapgh of the steady state solution looks like

C attached below

3 0
3 years ago
WILL GIVE BRAINLIEST! NEED FAST!
dybincka [34]

Answer:

650=65% of 1000

Step-by-step explanation:

650-600=65 or 65%

3 0
3 years ago
Other questions:
  • Select three ratios that are equivalent to 5:2<br> Choose 3 answers:
    10·1 answer
  • Which of the following sequences describes the distances of the ball from you
    12·1 answer
  • If a matrix does NOT have an inverse, what do you know about the determinant?
    6·1 answer
  • I need help what is 12 is 75% of what
    15·2 answers
  • What is the z-score of a data value that is 3 standard deviations to the left of the mean?
    11·1 answer
  • Surface Area Homework (Help)
    7·1 answer
  • Write an equation in slope intercept form that describes a line with a slope of 3 and containing the point (5,-1)
    8·1 answer
  • chris has 552 to hire ushers for a concert if she hires as many ushers as possible at $32 each how much money does she have left
    14·2 answers
  • I need help with these questions (see image). Please show workings.<br>​
    13·2 answers
  • A bakery offers a sale price of $3.30 for 3 muffins. what is the price per dozen?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!