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
Diano4ka-milaya [45]
2 years ago
13

What is the vertex? y=2x^2+28x-8

Mathematics
2 answers:
ra1l [238]2 years ago
5 0
Fist convert the equation to vertex form

y = 2(x^2 + 14x) - 8
 y = 2 [(x + 7)^2 - 49] - 8
y = 2(x + 7)^2 - 106

So the vertex is at (-7,-106)
Ghella [55]2 years ago
3 0
Put in math terms, the equation we are given is y = 2x² + 28x - 8

This equation is set up in standard form.  Standard form is ax² + bx + c.  In order to find the vertex, we'll complete the following equation:
-b / 2a
-28 / 2 (2)
-28 / 4
-7

Next, we'll just put -7 into the equation in place of x.

2(-7)² + 28(-7) - 8
2(49) -196 - 8
98 - 204
-106

So the vertex is (-7, -106).  Have fun plotting that.

Hope this helps!
You might be interested in
Please answer!!! Will mark brainliest answer !!!
kenny6666 [7]

Answer:

A, D

Step-by-step explanation:

When we multiply the fractions, we can get:

\frac{1}{5^{4} }

This is also equivalent to:

5^{-4}

When looking at the answer choices, the only ones that equal 5^{-4} are A and D because:

(5^{-2})^{2}  =5^{-4}

5^{2}*5^{-6} = 5^{-4}

3 0
3 years ago
Help please anyone thank you
vampirchik [111]

Answer:

true

Step-by-step explanation:

the line is going down. if it was positive then it would be going from left all to right going up.

7 0
2 years ago
Read 2 more answers
What's 400 divided by 5 show your work
vlada-n [284]
5 goes into 40 8 times than add a zero
6 0
3 years ago
1. (01.03 LC)
adoni [48]

Taking into account the definition of percentage, the correct option is: 21 percent of her net pay is left for savings.

First of all, the percentage represents a given quantity that establishes relationships between two quantities, using the number 100 as a reference.

That is, the percentage indicates what part of a total represents a quantity.

To obtain the percentage, the division must be made between the portion of the total and the total amount that belongs to the set, whose result is multiplied by 100.

In this case, if Lillie's current monthly net pay and her monthly expenses are $ 387.10, and I assume that the rest of the money is saved by Lillie, then the amount of money saved is $ 490 - $ 387.10 = $ 102.9.

Then:

  • portion of the total= amount of money saved= $102.9
  • total amount= Lillie's current monthly net pay= $490

So, the percentage is calculated as:

percentage= (102.9÷490) ×100

percentage= 0.21×100

percentage= 21%

The correct option is: 21 percent of her net pay is left for savings.

Learn more about percentage with this examples:

  • <u>brainly.com/question/19295956?referrer=searchResults</u>
  • <u>brainly.com/question/1301322?referrer=searchResults</u>
6 0
3 years ago
Please help me on this!
Likurg_2 [28]

Step-by-step explanation:

no I won't thanks though

6 0
3 years ago
Other questions:
  • Determine whether each number sentence<br> 15×432=(50×400)+(50×32)
    6·1 answer
  • Use partial products to find 15x32
    10·2 answers
  • Which of the ordered pairs is a solution to the system of inequalities? y &gt; 5 y ≥ x (0, 0) (4, 5) (-5, 4) (-5, 6)
    5·1 answer
  • Half of G Multiplied by t squared is equal to its area A divided by its width w
    14·1 answer
  • Consider the example with the fair and loaded die. The gambler selects one of the two die at random and rolls the die twice. The
    5·1 answer
  • Mark and his brother signed up for the Catch Up
    11·1 answer
  • What is a solution to the system of equation <br> 3x-4y=22<br> -9x+4y=38
    11·2 answers
  • A paint color is made using 4 drops of red and 5 drops of blue for each 5 gallons of paint. How many gallons of paint are being
    5·1 answer
  • What property justifies step?<br><br> 5(x-3)=20<br><br> x-3=4
    10·2 answers
  • Multiply 2/3 by 42,and then multiply that product by 10​<br><br> Need to see the steps.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!