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
Romashka [77]
3 years ago
10

Use the quadratic formula to solve 2x^2 -1 = 7x, and then verify your answer by graphing​

Mathematics
2 answers:
Bingel [31]3 years ago
8 0

Answer:

D

Step-by-step explanation:

Edge 2021

Nimfa-mama [501]3 years ago
7 0

Answer:

7+- root 57 / 4

d. 7+root 57/4 , 7-root 57/4 on edg

Step-by-step explanation:

got it right :)

You might be interested in
A triangle has sides with lenghs of 3x+3 ,2x+2 and 4x-1. what is the perimiter of the triangle
Bond [772]
Just add the side lengths together.
3x+3+2x+2+4x-1=9x+4
6 0
4 years ago
Triangle N P O is shown. Line O N extends through point M to form exterior angle P N M. Angle N P O is 38 degrees. Angle P O N i
elixir [45]

The measure of the exterior angle PNM will be x < 77. Then the correct option is C.

<h3>What is the triangle?</h3>

A triangle is a three-sided polygon with three angles. The angles of the triangle add up to 180 degrees.

Triangle NPO is shown.

Line ON extends through point M to form exterior angle PNM.

Angle NPO is 38 degrees.

Angle PON is 39 degrees.

Let the exterior angle PNM is x degrees and the interior angle PYO be y.  

Then we have

38 + 39 + y = 180°

                y = 103°

And we know that the sum of interior and exterior angle is a triangle is 180 degrees.

   x + y < 180

103 + x < 180

         x < 77

Then the correct option is C.

More about the triangle link is given below.

brainly.com/question/25813512

#SPJ1

6 0
2 years ago
There are 42 citizens called for jury duty. Eleven are randomly chosen to for the interview phase. How many different ways can t
Sunny_sXe [5.5K]

The quick way to get the answer is just type "42 choose 11" into Google.

Or if you want to figure it out yourself, you have 42 choices for the first potential juror, 41 choices for the second potential juror, etc.

Now before you stop there, you only care about the combination of the 11 people chosen, not what order they are selected, so you need to divide by the ways to arrange 11 people.

Final expression:

C(42,11) = (42 * 41 * 40 * 39 * 38 * 37 * 36 * 35 * 34 * 33 * 32) / (11 * 10 * 9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1)

Answers:

4,280,561,376 ways

4 0
3 years ago
Read 2 more answers
Simplify by factoring. What are the excluded values? Choose all that apply.
makvit [3.9K]

Answer:

x = -2

x = 8

Step-by-step explanation:

Excluded values are the ones which make the denominator zero

3x² + x - 10

3x² + 6x - 5x - 10

3x(x + 2) - 5(x + 2)

(x + 2)(3x - 5)

x² - 6x - 16

x² - 8x + 2x - 16

x(x - 8) + 2(x - 8)

(x - 8)(x + 2)

[(x + 2)(3x - 5)] ÷ [(x - 8)(x + 2)]

(3x - 5)/(x - 8)

So excluded values are 8, -2

6 0
3 years ago
You and your friend are buying throw blankets with your names embroidered on them.The cost of the throw blanket is x dollars and
-BARSIC- [3]
The cost of the blanket is $20
The cost of each letter is $1.50
5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the contrapositive of the following statement?
    11·2 answers
  • Hello my friends <br>can u help me out?
    6·2 answers
  • 8j - k + 14 when j = 0.25 and k = 1
    8·2 answers
  • What would i write for 6 times 7w??
    13·1 answer
  • Shawna is making smoothies. The recipe calls for two parts yogurt to three parts blueberry. Shawna wants to make 10 cups of smoo
    10·1 answer
  • WILL MARK BRAINIEST, PLEASE HELP ME!
    9·1 answer
  • 2. Hal forgot the number of people at the
    7·2 answers
  • If f(n) = 4n + 7 and g(n) = 2n + 3, find (g - f)(n).
    6·1 answer
  • Find the values of the variables in each right triangle.​
    15·1 answer
  • Identify the property of (-12)+12=0
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!