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
Annette [7]
3 years ago
6

Which expressions are equivalent to 4b? 1.b+2(b+2b) 2.3b+b 3.2(2b)

Mathematics
1 answer:
valentina_108 [34]3 years ago
8 0

Answer:

b+2(b+2b) = 7b so this is incorrect.

3b + b = 4b (correct)

2 * 2b = 4b (correct)

The answer is 3b + b and 2 (2b)

You might be interested in
PROOF: Triangle ABC is a right isosceles triangle by hypotenuse AB. M is the midpoint of AB. Select a coordinate proof to show t
Korolek [52]
The best and most correct answer among the choices provided by your question is the second choice or letter B.

<span> CM is perpendicular to AB because the triangles are isosceles and scalene.


</span>I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
8 0
3 years ago
Read 2 more answers
CALCULUS EXPERT WANTED
Vlad [161]

a. Use the mean value theorem. 16 falls between 12 and 20, so

v'(16)\approx\dfrac{v(20)-v(12)}{20-12}=\dfrac{240-200}8=5

(Don't forget your units - 5 m/min^2)

b. v(t) gives the Johanna's velocity at time t. The magnitude of her velocity, or speed, is |v(t)|. Integrating this would tell us the total distance she has traveled whilst jogging.

The Riemann sum approximates the integral as

\displaystyle\int_0^{40}|v(t)|\,\mathrm dt=12\cdot200+8\cdot240+4\cdot220+16\cdot150=7600

If you're not sure how this is derived: we're given 5 sample points, so we can cut the interval [0, 40] into 4 subintervals. The lengths of each subinterval are 12, 8, 4, and 16 (the distances between each sample point), and the height of the rectangle approximating the area under the plot of |v(t)| is determined by the value of v(t) at each sample point, 200, 240, |-220| = 220, and 150.

c. Bob's velocity is given by B(t), so his acceleration is given by B'(t). We have

B'(t)=3t^2-12t

and at t=5 his acceleration is B'(5)=15 m/min^2.

d. Bob's average velocity over [0, 10] is given by the difference quotient,

\dfrac{B(10)-B(0)}{10-0}=\dfrac{700-300}{10}=40 m/min

6 0
3 years ago
A cart is coasting past Gordon. As it passes, he exerts a force on it. Whether the cart speeds up, slows down, or changes direct
Ksivusya [100]

Answer:

Direction

Step-by-step explanation:

Whether the car slows down or speeds up depends on the direction of the force applied, because if Gordon applied the force opposite the direction of the cart's movement, then the cart will slow down. If however, the force is applied in the direction of the carts movement, then the cart will speed up.

6 0
3 years ago
Does 2, 2, √4 make a right triangle
telo118 [61]

Answer:

No it can'tright angle triangle

Step-by-step explanation:

2, 2, √4 can't make a right triangle

By Pythagoras theorem the square of two sides equal to the third side of the triangle.

2^2+2^2=(√4)^2

4+4=4

8 is not equal to 4 so it not make right angle triangle.

8 0
3 years ago
WHATS THE ANSWER?? answer ASAP NO FILE AT ALL
dlinn [17]

Answer:

B

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Other questions:
  • How do you answer this
    9·2 answers
  • Solve the Equation.
    12·2 answers
  • Shen’s mother gave him $10 to go buy groceries. He picked up a gallon of milk for $3.49, three pounds of oranges that cost $1.14
    12·2 answers
  • A town council wants to estimate the proportion of residents who are in favor of a proposal to upgrade the computers in the town
    10·2 answers
  • If 7x+2a=3x+5a then x is equivalent to what
    7·2 answers
  • What is the slope of line that is parallel to <br><br> y=2x+1
    14·1 answer
  • ezra uses his bank account to buy gasoline for his car 3 times. each time he buys gasoline, it costs $18.50
    5·1 answer
  • Tiara attended 12 piano classes in four weeks. If she attended the same number of classes each week, which equation can be used
    7·1 answer
  • 3. Identifique a seguir qual é a sequência
    13·1 answer
  • Write this expression using numbers and symbols two less then six times a number
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!