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
Phoenix [80]
3 years ago
7

4a^2+2a+4a^2-5 Simplify the expression

Mathematics
2 answers:
frozen [14]3 years ago
5 0
Add <span><span>4<span>a2</span></span><span>4⁢<span>a2</span></span></span> and <span><span>4<span>a2</span></span><span>4⁢<span>a2</span></span></span> to get <span><span>8<span>a2</span></span><span>8⁢<span>a2</span></span></span> .<span><span><span><span>8<span>a2</span></span>+<span>2a</span></span><span>−5</span></span><span><span><span>8⁢<span>a2</span></span>+<span>2⁢a</span></span><span>-<span>5</span></span></span></span>
raketka [301]3 years ago
4 0
it would be 8a^2+2a-5 but if u need value of a you can apply quadratic formula
You might be interested in
Someone help me please (geometry)
Maru [420]
The answer is D. Translation
4 0
3 years ago
HELP ASAP 10 POINTS TO BRAINLIEST
Brilliant_brown [7]

Answer:

15%

Step-by-step explanation:

The cost of 2 adults and 2 children without the discount is

2 adults = 2 (55) = 110

2 children = 2 (45) = 90

Total cost = 110+90 = 200

The original price is 200 and the new price is 170

Percentage discount = (Original price - new price)/ original price * 100%

                                     = (200-170)/200 * 100%

                                     = 30/200 * 100%

                                     = .15 * 100%

                                     = 15%

6 0
3 years ago
Write the cosine ratio of angle b<br> and show work please
Dennis_Churaev [7]
The formula for cosine is adj/hyp. For angle B, 10 is the adjacent and 24 is the opposite. The hypotenuse ( in this case, 26) is the longest side. the ratio for angle b would be 10/26.

7 0
3 years ago
Whats wrong in this equation ?
Inga [223]
The second step is wrong. What should've been done is to find greatest common factor (gcf) of 1/6 and -2. This is because you cannont add together a number with a variable to a number without a variable. So get the variable by itself by subtracting 1/6 from both sides.

1/5x + 1/6 = -2
___— 1/6_— 1/6
____________


Turn -2 into a fraction and find the gcf of -2 and 6:

1/5x + 1/6 = -2
___— 1/6_— 1/6
____________

1/5x = -2/1 — 1/6 ——> 1/5x = -12/6 — 1/6
1/5x = -13/6

Then divide each side by 1/5 to get the variable by itself; remeber: when dividing a fraction by a fraction, you multiply by the reciprocal.

5/1 • 1/5x = -13/6 • 5/1
x = 65/6

Then, simplify

65/6} 10.83 or 10 83/100
6 0
3 years ago
20% of x is 11. What is x?
ipn [44]

Answer:

55

Step-by-step explanation:

20% is the same as 1/5, so we can multiply 11 by 5:

11*5=55

5 0
3 years ago
Other questions:
  • Samuel is in charge of ordering lunch for participants in a company seminar. He needs to order 24 lunch specials that each cost
    14·1 answer
  • $43,000 at 7% for 8 years​
    5·1 answer
  • The population of a certain type of gorilla has been decreasing at a rate of about 3.5% per year over the past twenty years. If
    15·1 answer
  • At Central Theatre, the cost of a matinee movie is under $5.50. The cost of a
    13·1 answer
  • Determine the center and radius of the following circle equation:<br> x2 + y2 + 4x + 20y + 68 = 0
    8·1 answer
  • A man knows that his apple tree is 51 ft high. At 11:00 am the tree casts a shadow of 68 ft. What is the angle of elevation of t
    5·1 answer
  • Question is in the photo!
    9·2 answers
  • (8x) ³ in simplest radical form
    10·1 answer
  • (03.04 MC) Two pieces of bread, banana and whole wheat, were left out on a kitchen counter and mold began to grow on them. The a
    14·2 answers
  • A rectangular lot whose perimeter is 300 ft is fenced along three sides. An expensive fencing along the​ lot's length cost $30 p
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!