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
slavikrds [6]
3 years ago
12

Two possible solutions of are -7 and 1. Which statement is true?

Mathematics
1 answer:
quester [9]3 years ago
4 0

We can plug those values into the equation, and if the answer is incorrect, we'll know if either one is extraneous.

√11 - 2(-7) = √(-7)^2 + 4(-7) + 4

√25 = √25

5 = 5

The first solution, -7, makes the equation true, and so it is not extraneous.

√11 - 2(1) = √(1)^2 + 4(1) + 4

√9 = √9

3 = 3

The second solution, 1, makes the equation true, and so it is also not extraneous.

<h3>The correct option is D, neither solution is extraneous. </h3>
You might be interested in
What should you do to both sides of the inequality in order to solve x + (-2) &gt; 3?
lilavasa [31]

x+(-2) >3

open the bracket

x-2>3

collect the like terms by taking 2 to the other side

x>3+2

x>6

3 0
2 years ago
Find the value of x.A.55B.25C.35D.10
klasskru [66]

Answer:

D hope that help c: yhisj

8 0
3 years ago
What are the roots of the function y = 4x2 + 2x – 30? To find the roots of the function, set y = 0. The equation is 0 = 4x2 + 2x
nasty-shy [4]
4x² + 2x - 30 = 0
<span>
factor out the GCF:
</span>2(2x² + x - 15) = 0
<span>
factor the trinomial completely:
2x</span>² + x - 15 = 0
2x² + 6x - 5x - 15 = 0
2x(x + 3) - 5(x + 3) = 0
(2x - 5)(x + 3) = 0

<span>use the zero product property and set each factor equal to zero and solve:
2x - 5 = 0     or     x + 3 = 0
2x = 5                   x = -3
x = 2.5

</span><span>The roots of the function are x=-3,  x=2.5</span>
8 0
3 years ago
Read 2 more answers
Use synthetic division to find the result when 3x^3 + 13x^2 + x – 12 is divided by<br> X + 4.
IgorC [24]

Answer:

3x² + x - 3

Step-by-step explanation:

The way I like to do it is to get rid of the x's and just use the numbers in the case of synthetic division

Pretend the square root of the division symbol

-4 √ 3 12 1 -12

Quick note: We're dividing by -4 because we're dividing by x + 4

First bring down the 3

-4 √ 3 13 1 -12

      3

Multiply it by 4 then bring add it to the next number

-4 √ 3 13 1 -12

          -12

       3   1

Add that number to the next one

-4 √ 3 13 1 -12

        -12 -4

      3    1   -3

Finally repeat the step for the last number

-4 √ 3 13 1 -12

       3 -12 -4 +12

       3    1   -3   0

Now take those bottom numbers and add back the x's but with one less power, so the starting x³ would now become x², x² would become x, and so on

3x² + 1x - 3

8 0
2 years ago
your sister can get $30 per day for selling clothes at the market. but she has to $60 at first for renting a stand. you can get
ella [17]
Day Sis you
1 -30 20
2 0 40
3 30 60
4 60 80
5 90 100
6 120 120

So day 6.
8 0
3 years ago
Read 2 more answers
Other questions:
  • Given: 4x=8(x-2)<br> Prove: x=4
    7·1 answer
  • What is the answer, law of cosine for geometry
    8·1 answer
  • How do you find the derivative of h(t)=sqrt(t)(1-t^2)
    8·1 answer
  • Earths mass is 5.97 x 10^22kg. The mass of Jupiter is 1.9 x 10^26kg. Mars mass is 6.42 x 10^21kg and Mercury’s is 3.3 x 10^22kg.
    5·1 answer
  • Whats the answer for 604 × 91
    7·2 answers
  • The meter is the standard unit for:<br><br> weight<br> height<br> mass<br> length
    12·2 answers
  • Ms. Carey is planning to host a neighborhood picnic. To make sure she had enough ingredients, she was making a table of
    9·1 answer
  • 262 + 923 + 231 - 138 = ?​
    5·1 answer
  • Jake and his 3 friends shared 3 1/2 pizzas equally. Is it 4 divided by 3 1/2 or 3 1/2 divided by 4?
    15·1 answer
  • Write an absolute value inequality for the graph below. Use x for your variable. ​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!