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
katovenus [111]
3 years ago
5

Please help, Thanks.

Mathematics
1 answer:
Evgen [1.6K]3 years ago
8 0

Answer:

C

Step-by-step explanation:

49x² + 28xy + 4y² ← is a perfect square of the form

(ax + by)² = a²x² + 2abxy + b²y²

49 = 7² ⇒ a = 7 and 4 = 2² ⇒ b = 2

2ab = 2 × 7 × 2 = 28

Hence

49x² + 28xy + 4y² = (7x + 2y)²

with factor 7x + 2y ⇒ C

You might be interested in
A city manager made a scatter plot of the number or retail store in a certain city over the years. the scatter plot had a trend
Fiesta28 [93]

Answer:

155

Step-by-step explanation:

The problem sounds complicated, but it's not. Let's analyse.

The city manager have come up with an equartion y=11x +12, with Y is the total number of the stores and X stands for how long it has been since 2003.

We can't explain how the manager came up with this equation, so iwe don't need to think of if the equation is real or not. Let's just base on what we have.

Because the equation aboce is a trendy line, it means that it would likely to be true with any X ( number of years since 1990).

In Tracy's case, the year is 2003, so it has been 2003 - 1990 = 13 years since 1990. This is the X in the equation. Now we only need to find Y in the equation, which is the number of retail stores there were in 2003, exactly what the problem asks.

y= 11x + 12

=> In Tracy's case: y= 11*13 + 12= 155

So the number of retail stores there were in 2003 was 155

5 0
2 years ago
Ruth buys 19 identical tickets for £280.25.<br> Estimate the cost of one ticket.
xxTIMURxx [149]

Answer:

The cost of one ticket is $14.75

Step-by-step explanation:

To find the cost of one ticket we need to divide 280.25 by 19

=$14.75

plz mark me as brainliest

3 0
3 years ago
Read 2 more answers
in massaschusetts a team of scientists studying great white sharks estimate that a population of 15000 seals support fewer than
Evgen [1.6K]

Answer:

The higher you go in the good chain the lower the population.

Explanation:

In the food web, there are only a few sharks since in the food chain they are higher. Just 10% energy is retained in the tissues once the energy is moved from one trophic level to another, and the leftover power is emitted as metabolic energy.

If an animal is high up the energy ladder, the individual has less resources; thus, a few of the highest predators are present in an ecosystem.

3 0
3 years ago
5/7=x/42 what is the value of x
sasho [114]
5/7 = x/42
5/1 = x/6
X = 30
4 0
3 years ago
A shoe store is offering a 25% discount on all pairs of shoes in the store. Every store employee gets an addtional 15% off the a
sergeinik [125]
The amount an employee has to pay for a pair of shoes, is $56, but there is no $56 option, so the only other answer it could be is C. $57
3 0
3 years ago
Other questions:
  • Solve the equation using the quadratic formula -x^2+27=6x
    10·2 answers
  • Find the length of ST In the kite.
    5·1 answer
  • Round to the nearest whole number.<br> 432.846
    11·2 answers
  • Plz help me asap but faster
    14·2 answers
  • 1 1/3 + 1/2 + 1 + 3/4
    6·1 answer
  • 1. SAT Math scores in recent years have had means around 490 and standard deviations
    12·1 answer
  • Simplify the expression below as much as possible.<br> (8 + 9i) + (5 - 91) - (8 - 7i)
    9·1 answer
  • 7 Which of following equations represents the
    6·1 answer
  • A number divided by 4 is 3. Write and solve an equation to find the missing number.
    10·1 answer
  • Suppose that $16,000 is deposited for five years at 5 % APR. Calculate the interest earned if interest is compounded semiannuall
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!