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
Elanso [62]
3 years ago
11

-r+8(-5r-2) please help

Mathematics
1 answer:
Andre45 [30]3 years ago
4 0

-r + 8(-5r - 2)     Multiply/distribute 8 into (-5r - 2)

-r - 40r - 16    Combine like terms

-41r - 16

You might be interested in
What is 47,300 in scientific notation?
agasfer [191]
There's always a decimal at the end of a whole number. here it's behind the last zero. move that decimal so that the non-zero digit is less than 10 but more than 1.
4.73, the decimal was moved 4 places to the left. so the scientific notation is
4.72X10^4
3 0
3 years ago
The length of a rectangle is 4 less than twice the width. If the perimeter of the rectangle is 130, find the length of the recta
Alchen [17]

Answer:

Let L be the length of the rectangle and w be the width of the rectangle.

"The lenght of a rectangle is one less than twice the width" means L=2W-1

Using perimeter formula of a rectangle which is P=2(L+W) you have:

P=2(L+W)

130=2(2W-1+W)

Solve equation above to find W

130=2(3W-1)

130=6W-2

130+2=6W

132=6W

W=22

From here you find L=2W-1=2x22-1=43

Only thing left is to find area A=LxW

4 0
3 years ago
Which statement best describes how to determine whether f(x) = x3 + 5x + 1 is an even function?
kvasek [131]

Answer: Determine whether (–x)3 + 5(–x) + 1 is equivalent to x3 + 5x + 1.

To determine if a function is even, we need to check if f(-x)=f(x).

3 0
2 years ago
the bakers at Healthy bakery can make 170 bagels in 5 hours. how many bagels can they bake in 13 hours? what was the rate per ho
Degger [83]

Answer:

442

Step-by-step explanation:

170/5 (to find per hour)

34*13 = 442

4 0
3 years ago
Read 2 more answers
Write a quadratic function with a vertex at (-9,13).
Lorico [155]

Answer:

y = x² + 18x + 94

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (- 9, 13) and letting a = 1, then

y = (x + 9)² + 13 ← expand (x + 9)² using FOIL

   = x² + 18x + 81 + 13

   = x² + 18x + 94

5 0
3 years ago
Read 2 more answers
Other questions:
  • Solve the system of equations below by graphing.
    10·2 answers
  • 1. Different students drew random samples of size 50 from the mystery bag. The number of red chips each drew is given below. In
    11·1 answer
  • 2) For which value of P and W is P + W a rational number? P = 1/(sqrt(3)) And W = 1/(sqrt(6)) 2) P = 1/(sqrt(4)) and w = 1/(sqrt
    7·1 answer
  • Judy spent 1 hr 15 min less than Sandy exercising last week. Sandy spent 50 minutes less than Mary, who spent 3 hours at the gym
    8·1 answer
  • Find the slope of the line that passes through points (4, 2) and (-17, -20).
    12·2 answers
  • A cone has a height of 18 yards and a diameter of 28 yards. What is its volume?
    11·1 answer
  • Complete the table below to show the differences bettween algebraic expression and equation
    6·1 answer
  • Math Extended Problems Sequences
    12·1 answer
  • What is the solution to -7+h=12?
    13·2 answers
  • Kevin packs cans of beans into cases. He has 3,987 cans, and each case holds 240 cans. How many cases will he need to pack all t
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!