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
Wewaii [24]
3 years ago
8

Simplify the expression: 2x( 4x + 5) A 622 + 72 B 82 + 5 C 812 + 103 D O81 +10

Mathematics
1 answer:
nexus9112 [7]3 years ago
3 0

Answer:

=8x2+10x

Step-by-step explanation:

2x(4x+5)

=(2x)(4x+5)

=(2x)(4x)+(2x)(5)

You might be interested in
12. Which equation describes the line with a slope of 2 that contains the point (4, -3)?
Alex777 [14]
The answer is A because using the point slope formula y-y1=m(x-x1) you get the answer choice A
7 0
3 years ago
A particle starts at the point (−3, 0), moves along the x-axis to (3, 0), and then along the semicircle y = 9 − x2 to the starti
Sidana [21]

Answer:12π (12pie)

Step-by-step explanation:

Check attached picture

7 0
2 years ago
I built a storage shed in the shape of a rectangular box on a square base. The material that I used for the base cost $4 per squ
Dmitrij [34]

Answer:

V = \frac{450L - 6 L^{3} }{10}

Step-by-step explanation:

The volume of a cuboid can be determined simply by the formula: V= LWH

(where: L is length, H is height and W is width).

In this particular case the base is a square, which means the length and width are equal. Hence we can modify the equation of volume:

V = L^{2} H

Now we need to find the value of H in terms of L. For this we can develop the equation for cost incurred in building the storage shed. We find the area of each side of the cuboid, and then we multiply it by cost per square feet to find the total cost incurred; as shown below:

<u>Area:</u>

Base: L×L = L^{2}

Roof: L×L = L^{2}

Side: 4 H×L = 4HL  (we have considered all four sides)

<u>Cost:</u>

Base: 4L^{2}

Roof: 2L^{2}

Side: 2.50 * 4HL = 10 HL

Total cost:

4L^{2} + 2L^{2} + 10 HL = 450

We simplify this equation further:

6L^2 + 10<em>HL </em>= 450

10HL = 450 - 6L^2

H = \frac{450- 6 L^2}{10L}  

We now have the value of H, which we can substitute in the formula of Volume we deduced earlier:

substituting H = \frac{450-6L}{10L}  in  V = L^{2} H :

V = L^2 × \frac{450 - 6L }{10L}

Simplifying it further:

V = L × \frac{450 - 6L}{10}

V= \frac{450L - 6L^3}{10} is the final answer.

3 0
3 years ago
If someone could please walk me through on how to answer this.
Elis [28]

To isolate c means to separate it completely on one side of the equals sign.


To isolate variables, you apply opposite operations.


In E = mc², m and c are being multiplied together. To separate them, you divide by the variable you want to get rid of. However, you must do this to both sides of the equation always. Whatever you do to one side of the equation you must do to the other side as well. This is so the equation remains true.


Since we want to isolate c, we'll start by dividing both sides by m.


E = mc²

E/m = mc²/m

E/m = c²  --  The m's cancel as 1


Now we have c squared. The opposite of squaring something is taking its square root. Take the square root of each side.


E/m = c²

√(E/m) = √(c²)

√(E/m) = c  --  Opposite operations cancel each other out


And you've isolated c!


Answer:

c = √(E/m)

3 0
3 years ago
2. Jamie bought a computer for $856.35 including tex He received an interest-free loan for the exact poor of the computer. If Ja
Ksju [112]

Answer:

57.09

Step-by-step explanation:

856.35/15. total amount divided by number of payments

5 0
3 years ago
Other questions:
  • A professor wants to know if her introductory statistics class has a good grasp of basic math. Six students are chosen at random
    14·1 answer
  • The product of -3 and a number minus seven is greater then -20
    8·2 answers
  • What is the pattern? 1,1 / 2,3 / 3,6 / 4,10 / 5,15. (x,y). Whoever answers gets brainliest!
    5·1 answer
  • What is the length of PR?
    8·2 answers
  • Suppose a city with population 100,000 has been growing at a rate of ​8% per year. If this rate​ continues, find the population
    7·1 answer
  • What is the answer? can someone help
    11·2 answers
  • What percentage of a dollar is the value of 1 nickel and 3 pennies?
    7·1 answer
  • Find the number of choices that are possible if you choose one of 3 kinds of fruit and one of 3 kinds of vegetables.
    7·1 answer
  • There is 1 inch of water in a pool. The water level is increasing at 0.75 inches/minute. Which linear equation represents the to
    7·1 answer
  • 12x3-3x2=0 solve the equation by factoring
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!