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
Artemon [7]
3 years ago
13

(3.rº – 7x + 2) - (2x² – 4x + 5)

Mathematics
1 answer:
Vladimir79 [104]3 years ago
5 0

Answer:

choice C: x2 -3x -3

Step-by-step explanation:

(3x^2-7x+2)-(2x^2-4x+5)

becomes

3x^2-7x+2 -2x^2+4x-5

adding

3x^2-2x^2 -7x+4x +2-5

which is

x^2 -3x -3

You might be interested in
Problems with Equations: Mastery Test
GaryK [48]

Step-by-step explanation:

The answer is 8

Because you have to put each value of x given in the equation 3x = 24

So when you put the value 8

3(8) = 24

24 = 24

6 0
3 years ago
How much energy in joules can the solar panel produce each day if solar cells were 100% efficient and generate 1000 watts of pow
notsponge [240]

Answer:

The solar panel produce 6.48 × 10⁶ J of energy each day.

Step-by-step explanation:

If the solar cells were 100% efficient and generate 1000 watts of power per square meter

The power generated per square meter will be

\frac{100}{100} \times 1000 watts/m^{2}

= 1000 watts/m²

This is the power that would be generated per square meter if the solar cells were 100% efficient.

Now, for a 1 square meter panel of solar cells with an efficiency of 30%, the power generated will be

\frac{30}{100} \times 1000 watts/m^{2} \times 1m^{2}

= 300 watts

This is the power that would be generated by a 1 square meter panel of solar cells with an efficiency of 30%

Now, to determine the energy in joules (J) that the solar panel produce each day

We can determine the energy from the formula

Energy = Power × time

From the question, the solar cells receives the equivalent of 6 hours of direct sunlight per day, that is

Time = (6 × 60 × 60) secs = 21600 secs

Hence,

Energy = 300 watts × 21600 secs

Energy = 6480000 Joules

Energy = 6.48 × 10⁶ J

8 0
3 years ago
Read 2 more answers
The highest recorded temperature in Massachusetts was one hundred seven degrees Fahrenheit on August 27, 1975. The average month
aleksley [76]

Answer:

25.3°F

Explanation:

We need to find the difference between the temperature on August 27, 1975, and the average temperature. So, the difference is equal to:

107 °F - 81.7°F = 25.3°F

It means that on August 27, 1975, the temperature was 25.3°F hotter than average.

7 0
1 year ago
- GO DEEPER Marco received a gift card. He used it to
ANEK [815]

Answer:30$

Step-by-step explanation:$10.50 times two is 21 plus the handlebar would make it $29.25

8 0
3 years ago
-24 divided by the fraction 4 over 8
julsineya [31]

Answer:

-48

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • How do you find the midpoint of a line segment
    13·2 answers
  • Can someone help me and my sister with this paper??
    14·2 answers
  • What is a descriptive adjective
    8·1 answer
  • SOMEONE HELP ME WITH THIS MATH PROBLEM PLEASE
    15·1 answer
  • The deck of a card game is made up of 108 cards. Twenty-five each are red, yellow, blue, and green, and eight are wild cards. Ea
    13·1 answer
  • Find the volume of each sphere. Round to nearest tenth.
    11·1 answer
  • A Statistics professor has observed that for several years students score an average of 106 points out of 150 on the semester ex
    13·1 answer
  • A deposit plus $8 per hour<br> *translate the expression*
    6·1 answer
  • What is the equation graph below?
    15·1 answer
  • Paid for $22 for for movie tickets how many would they have pay for for 16 tickets
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!