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
sweet-ann [11.9K]
4 years ago
8

Simplify:(4x2 - 2x) - (-5x2 - 8x)

Mathematics
2 answers:
Marysya12 [62]4 years ago
7 0

Answer:

4x2+5x2-2x+8x=9x2+6x

Step-by-step explanation:

trapecia [35]4 years ago
6 0

Answer:

24x

Step-by-step explanation:

Calculate the product

8 and 10

(8x-2x)-(-10x-8x)

Collect like terms

(6x)-(-18x)

Remove any unnecessary parentheses

6x-(-18x)

When there is a - in front of an expression in parentheses, change the sign of each term in the expression

6x+18x

Collect like terms

24x

Answer = 24x

You might be interested in
How much cashews at $1.58 per pound must be mixed with walnuts that cost 78 cents per pound to make a mixture of 40 pounds of nu
Likurg_2 [28]

Number of pounds of cashews is 36 pounds and number of pounds of walnuts is 4 pounds.

Step-by-step explanation:

  • Step 1: Given details are cost of cashews = $1.58, cost of walnuts = 78 cents = $0.78, total weight of nuts = 40 pounds, cost of nuts per pound = $1.50
  • Step 2: Let number of pounds of cashews to be mixed be C, then number of pounds of walnuts will 40 - C. Form equation with these variables.

⇒ 1.58 C + (40-C) 0.78 = 40 × 1.50

⇒ 1.58 C + 31.2 - 0.78 C = 60

⇒ 1.58 C - 0.78 C = 60 - 31.2

⇒ 0.8 C = 28.8

⇒ C = 36 pounds

  • Step 3: Calculate number of pounds of walnuts

⇒ Number of pounds of walnuts = 40 - C = 4 pounds

5 0
3 years ago
Read 2 more answers
ANSWER QUICK AND WILL GIVE 1000 POITS PLEASE!!!!!!!A truck drove 229.77 miles on 11.1 gallons of gas. How far could the truck dr
Archy [21]

Answer:

  • 347.76 miles

Step-by-step explanation:

A truck drove 229.77 miles on 11.1 gallons of gas.

<u>Find the mileage per gallon:</u>

  • 229.77 / 11.1 = 20.7 mpg

<u>Find the distance can be driven on full tank:</u>

  • 20.7 * 16.8 = 347.76 miles
4 0
3 years ago
Read 2 more answers
the perimeter of a rectangular painting is 304 CM. If the width of the paint is 63 cm what is the length​
s2008m [1.1K]

Answer:

The PERIMETER P is the distance around the rectangle.

Let's call the width of the rectangle W and the length of the rectangle L.

As you go around the edge there two equal lengths and two equal widths.

The formula for the perimeter of a rectangle is P=2*L+2*W.

P=2L%2B2W

Substitute 290 for P and 62 for the width.

290=2L%2B2%2862%29

Solve for L.

290=2L%2B2%2862%29

290=2L%2B124

290-124=2L

2L=166

L=83

The equation L=83 means that the length is 83 cm.

CHECK your work.

2(62)+2(83) = 124+166 = 290cm.

The length of the rectangle is 83cm.

5 0
3 years ago
The values shown represent the y-values that correspond to x-values from x = 1 through x = 5.
rjkz [21]
The answer is B because every number is adding up to 6
7 0
3 years ago
Zeek then want to ride his bike to the old spaghetti factory. He wondering if he should bike 1 mile north, then 0.5 miles direct
frosja888 [35]

Answer:

He should travel directly

Step-by-step explanation:

Given

x = 0.5 --- East

y =1 --- North

If he goes through east north direction, the distance (d) traveled is:

d = x + y

d = 0.5 + 1

d = 1.5 mile

If he travels directly, the distance (d) is:

d = \sqrt{x^2 + y^2} ---- Pythagoras theorem

d = \sqrt{0.5^2 + 1^2}

d = \sqrt{0.25 + 1}

d = \sqrt{1.25}

d = 1.12mile

By comparison, he will travel the shortest distance if he travels directly because 1.12 < 1.5

<em>Hence, he should travel directly</em>

6 0
3 years ago
Other questions:
  • On the set of axes, draw the graph of the equation y = -(3/4)x + 3.
    15·1 answer
  • Factor completely: 10x2 + 2x − 8
    8·2 answers
  • Name 2 numbers that have an<br>absolute value of 5.<br><br>plz help!!!​
    11·2 answers
  • Find the missing side length <br><br><br><br><br><br> Plsss help
    5·1 answer
  • Complete this sequence 4.15, 6.3, 8.45
    9·2 answers
  • To convert 10 minutes to seconds, you would use the ratio. 1 seconds/ 60 mins
    14·2 answers
  • Factor this equation<br> 4x^2+12x-7
    10·1 answer
  • A triangle has sides with lengths 17, 12, and 9. Is the triangle right, acute, or obtuse?
    13·1 answer
  • Create a ratio table to match the following situation; write at least four different equivalent ratios in the table. For every t
    11·1 answer
  • Please help me asap with this question
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!