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
8_murik_8 [283]
2 years ago
14

-2x^2 + 4x + 16 in vertex form​

Mathematics
1 answer:
Reil [10]2 years ago
6 0

Answer:

y = - 2(x - 1)² + 18

Step-by-step explanation:

- 2x² + 4x + 16 ← factor out - 2 from the first 2 terms

= - 2(x² - 2x) + 16

using the method of completing the square

add/subtract ( half the coefficient of the x- term)² to x² - 2x

= - 2(x² + 2(- 1)x + 1 - 1) + 16

= - 2(x - 1)² + 2 + 16

= - 2(x - 1)² + 18 ← in vertex form

You might be interested in
Can someone please help me on this question?
katovenus [111]

Answer:Hope this helps

6n=-3n-18

9n=-18

n=-2

3 0
3 years ago
Read 2 more answers
In the figures, area of triangle ABE is 25 cm2
stira [4]

Answer:

sorry where is figure.

Step-by-step explanation:

area of triangle ABE=area of triangle BE3

4 0
3 years ago
Ruben bought 6 new books for his collection. This increased his collection by 12%. How many books did he have before his purchas
Norma-Jean [14]

Answer:  The required number of books that Ruben had before purchases is 50.

Step-by-step explanation:  Given that Ruben bought 6 new books for his collection that increased his collection by 12%.

We are to find the number of books that Ruben had before purchases.

Let x denotes the number of books that Ruben had before purchases.

Then, according to the given information, we have

x+6=x+12\%\times x\\\\\\\Rightarrow 6=\dfrac{12}{100}x\\\\\\\Rightarrow 6=\dfrac{3x}{25}\\\\\\\Rightarrow 3x=150\\\\\Rightarrow x=\dfrac{150}{3}\\\\\Rightarrow x=50.

Thus, the required number of books that Ruben had before purchases is 50.

4 0
3 years ago
5x-9>4 and sketch a graph on that question​
iren [92.7K]

Answer:

Step-by-step explanation:

7 0
3 years ago
Percent of discount is 25% and the sale price is 40$ what is the original amount?
Crank
<span>Percent of discount is 25% and the sale price is 40$ what is the original amount? $160

percent of discount is 5% and the sale price is 57$ what is the original amount? $60

percent of discount is 80% and the sale price is 90$ what is the original amount? $112.5

percent of discount is 15% and the sale price is 146.54$ what is the original 
amount? $976.93

the original price is 60$ and the sale price is 45$ what is the percent of discount? 25%

original price is 82$ and the sale price is 65.60$ what is the percent of discount? 20%

original price is 95$ and the sale price is 61.75$ what is the percent of discount? 35%</span>
6 0
3 years ago
Other questions:
  • What is the standard form of (1-3i)(2+5i)
    10·1 answer
  • Alex got 21 out of 26 on a maths test and Miall got 23 out of 30 for a science test. who got the highest percentage?
    15·1 answer
  • Isabelle has a five-sided chicken coop in her yard. Each side has an equal length.
    6·1 answer
  • Ms. Green tells you that a right triangle had a hypotenuse of 13 and a leg of 5. She asks you to find the other leg of the trian
    15·1 answer
  • How about this one −p+
    11·1 answer
  • A regular pyramid has a square base with sides of length 1. The four triangular faces are isosceles triangles whose equal sides
    14·1 answer
  • ASAP Right answer only please??!!!!
    14·1 answer
  • Find the quotient. Express your answer as a mixed number in simplest form.<br><br><br><br> 334 ÷ 112
    6·1 answer
  • Click on the length of the rectangle<br><br>​
    15·1 answer
  • She bought <br> 314yards of fabric. Her total cost was $13. What was the cost per yard?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!