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
VMariaS [17]
3 years ago
7

Lisa solved 3x2 + 1 = 28 as shown.

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
4 0

x squared = 9  NOT x

x = square roots of 9 which is +3 or  -3.

You might be interested in
Dan Perkins goat is attached to the corner of the 14-foot-by-7-foot pump house by a 14-foot length of rope. The goat eats the gr
fenix001 [56]
<span>This pattern consists of three-fourths of a circle of radius 14 feet and one-fourth of a circle of radius 7 feet. What area of grass can Dan Perkins goat eat?</span>

We know that the formula for the area of the pitch circle are:
\pi*r^2*\alpha where alpha is the pinch of circle, r is radius, and pi is mathematics constant approximately equal 3,14

\pi*14^2*\frac{3}{4}+\pi*7^2*\frac{1}{4}=461,58+38,465=500,045(feet^2)
5 0
3 years ago
What are the solution(s) to the quadratic equation 9x2 = 4?
Kaylis [27]

Answer:

Option B.

Step-by-step explanation:

The given quadratic equation is

9x^2=4

We need to find the solution of given quadratic equation.

Divide both sides by 9.

\frac{9x^2}{9}=\frac{4}{9}

x^2=\frac{4}{9}

Taking square root on both sides.

x=\pm\sqrt{\frac{4}{9}}

x=\pm\frac{2}{3}

The solution of given equation are x=\frac{2}{3} and x=-\frac{2}{3}.

Therefore, the correct option is B.

6 0
3 years ago
Read 2 more answers
What is the answers and how do u get those answers
Arada [10]
Question 5 and 7 only?
6 0
3 years ago
Last year, lien earned 1200 more than her husband. Together they earned 45,200. How much did each of them earn?
d1i1m1o1n [39]

Answer:

Lien earned $23,800

Husband earned $22,600

Step-by-step explanation:

$45,200 divide it by 2 = $22,600

then you add $1,200 to $22,600 and get  $23,800

4 0
3 years ago
Consider the system: y = 3x + 5 y = ax + b What values for a and b make the system inconsistent? What values for a and b make th
AnnyKZ [126]
<span>When a = 3 and b ≠ 5, the system will be inconsistent because the lines will be parallel. When a = 3 and b = 5, the system will be consistent and dependent because they represent the same line.</span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • What type of triangle has exactly two acute angles?
    11·1 answer
  • If a wagon wheel has a diameter of 70cm, how many revolutions would it take to travel 66 METERS?
    15·1 answer
  • John's paycheck this week was $9.23 less than his paycheck last week. His paycheck this week was $154.01 . How much was John's p
    6·1 answer
  • Solve for f.<br> 0.3 = 0.58 -0.7<br> How do it do it
    9·2 answers
  • What is the simplified form of x plus 1 over x squared plus x minus 6 divided by x squared plus 5x plus 4 over x plus 3 ?
    6·2 answers
  • Profit is the difference between
    10·2 answers
  • An angle measures 76° more than the measure of its complementary angle.
    8·1 answer
  • Need help finding out something, refer to picture
    13·2 answers
  • Jason works at Dell and earns $16.30 per hour for the first 40 hours of the week and then earn 1.5 times his regular rate. How m
    10·2 answers
  • Solving proportions
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!