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
rewona [7]
3 years ago
8

PLEASE HELP ME WITH THIS QUESTION. please and thank you

Mathematics
1 answer:
Ahat [919]3 years ago
6 0

Associative property moves the parenthesis

Choice B

You might be interested in
What is the equation of this line in standard form?
Otrada [13]

Answer:

standard form is 6x−11y=13

4 0
3 years ago
Read 2 more answers
Passing through the point (3,-2) and parallel to the line with the equation Y=1/3 x-7
umka21 [38]

Answer:

y = \frac{1}{3} x - 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = \frac{1}{3} x - 7 ← is in slope- intercept form

with m = \frac{1}{3}

Parallel lines have equal slopes, thus

y = \frac{1}{3} x + c ← is the partial equation

To find c substitute (3, - 2) into the partial equation

- 2 = 1 + c ⇒ c = - 2 - 1 = - 3

y = \frac{1}{3} x - 3 ← equation of line

7 0
4 years ago
The time, t, required to travel a fixed distance varies inversely as the
Lemur [1.5K]

You must travel at 42 mph for 4 hours

<em><u>Solution:</u></em>

Time varies inversely as rate of motion

Let "t" be the time required

Let "r" be the rate of motion

Then, we get

t \propto \frac{1}{r}\\\\t = k \times \frac{1}{r}\\\\t = \frac{k}{r} -------- eqn 1

Where, "k" is the constant of proportionality

<em><u>You travel 3 hours at a rate of 56 mph</u></em>

Substitute t = 3 and r = 56 in eqn 1

3 = \frac{k}{56}\\\\k = 3 \times 56\\\\k = 168

<em><u>Find the  rate you must travel for 4 hours</u></em>

r = ? and t = 4

Substitute t = 4 and k = 168 in eqn 1

4 = \frac{168}{r}\\\\r = \frac{168}{4}\\\\r = 42

Thus you must travel at 42 mph for 4 hours

4 0
4 years ago
Set up the characteristic equation, which is given by r2 − 5r − 6 = 0. The roots of this equation are given by r1 = 6 and r2 = −
s344n2d4d5 [400]

Answer:

Step-by-step explanation:

From your characteristic equation, your recursive equation is

f(n+2) = 5 f(n=1) +6f(n)

the general solution:

f(n) = A6^n + B(-1)^n

The initial conditions are

f(0) =1 ~~~and~~~ f(1) = 3

For f(0) = 1, that is

f(0) = A6^0 + B(-1)^0 = A+ B=1 (*)

For f(1) = 3, that is

f(1) = A6^1 + B(-1)^1 = 3

6A- B = 3 (**)

From (*) and (**) you solve for A and B

you have A = 4/7 and B= 3/7

Replace A, B into the general one, you have the particular solution for the given condition

f(n) = 4/7 *6^n +3/7*(-1)^n

4 0
4 years ago
Andrea opened a savings account with $1,750 she received for graduation. The account pays 4.3% simple interest. What is the bala
Schach [20]

Answer:

$1787.625

Step-by-step explanation:

We first determine the interest earned in 6 months time using the simple interest formula;

I=\frac{PRT}{100}\\I=\frac{1750*4.3*0.5}{100}\\I=37.625

The balance in the account will be;

1750 + 37.625 = $1787.625

5 0
4 years ago
Other questions:
  • What is onetenth for 19,548
    9·1 answer
  • A box measuring 11 inches by 10 inches by 7 inches is filled with solid wooden cubical blocks, each measuring 3 inches per side.
    15·2 answers
  • Michael and Minnie are gathering coats for a coat-drive at their school. Minnie gathers 3 times as many coats as Michael and tog
    13·1 answer
  • Susan has a part time job. She earns $7 an hour. She earns at most $143.50 a week. What is the greatest number of hours that she
    8·1 answer
  • Solve the equation using square roots. x2– 15 = 34
    7·1 answer
  • What is the answer to 8x²+7y²-3x²+5y²=12​
    6·1 answer
  • Pllssss I need help
    14·1 answer
  • Malala is following this recipe for bread rolls.
    15·1 answer
  • How to find the transformation matrix between two sets of vectors
    12·1 answer
  • Find angle picture below
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!