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
sertanlavr [38]
1 year ago
10

I need help with this problem

Mathematics
2 answers:
Ipatiy [6.2K]1 year ago
5 0

We just check on the graph and see that

the answer is x = -7 and x = 2

vesna_86 [32]1 year ago
5 0
Answer: x=-7 and x=2
You might be interested in
In a simple regression analysis (where y is a dependent and x an independent variable), if the y-intercept is positive, then it
Rom4ik [11]

Answer:

m=\frac{S_{xy}}{S_{xx}}  

Where:  

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}  

S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}  

\bar x= \frac{\sum x_i}{n}  

\bar y= \frac{\sum y_i}{n}  

And we can find the intercept using this:  

b=\bar y -m \bar x  

On this case the correct answer would be:

E.  none of the above

Since the intercept has no association between the increase/decrease of the dependent variable respect to the independent variable

Step-by-step explanation:

Assuming the following options:

A.  there is a positive correlation between X and Y

B.  there is a negative correlation between X and Y

C.  if X is increased, Y must also increase

D.  if Y is increased, X must also increase

E.  none of the above

If we want a model y = mx +b where m represent the lope and b the intercept

m=\frac{S_{xy}}{S_{xx}}  

Where:  

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}  

S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}  

\bar x= \frac{\sum x_i}{n}  

\bar y= \frac{\sum y_i}{n}  

And we can find the intercept using this:  

b=\bar y -m \bar x  

On this case the correct answer would be:

E.  none of the above

Since the intercept has no association between the increase/decrease of the dependent variable respect to the independent variable

3 0
2 years ago
After a 75% reduction, you purchase a new clothes dryer for $200. What was the original price of the clothes dryer?
lesya [120]

Answer:

$800

Step-by-step explanation:

Let the original price be $x.

75% reduction ----- 100% -75%= 25%

25%x= 200

\frac{25}{100} x = 200 \\ x = 200 \div  \frac{25}{100}  \\ x = 200 \times  \frac{100}{25}  \\ x = 800

Thus, the original price of the clothes dryer is $800.

3 0
2 years ago
Read 2 more answers
What is the equation of the perpendicular bisector of line AB?
Usimov [2.4K]
It should be B

Because the slope of AB is 6/5 and when you are finding it’s perpendicular bisector then the slope of that line should be the negative reciprocal, it should be -5/6.
7 0
2 years ago
Read 2 more answers
If m\angle A=(6x+10)^{\circ}∠A=(6x+10) ∘ and m\angle B=(4x+30)^{\circ}∠B=(4x+30) ∘ , then find the measure of \angle B∠B.​
netineya [11]

A=6 × + 10=88555%__/455

6 0
2 years ago
Which of the following statements is a contradiction? 1/2 is a rational number. 3 is an integer. -1 is a natural number. π is ir
Nutka1998 [239]

1/2 is the contradiction I think.


7 0
3 years ago
Other questions:
  • If jasmine gets $3.00 every time her song gets 1500 streams how much money would she have if she got 3 million streams
    7·1 answer
  • Solve for the given length:
    13·1 answer
  • What is the slope of the line in the graph?
    14·1 answer
  • Need answers for all of them 25 points
    6·1 answer
  • PLEASEE HELP MEEE<br> I need help with my math homework
    8·1 answer
  • How much time has passed?<br> Start time: 4:45 a.m. End time: 7:25 a.m.
    14·1 answer
  • Need help will mark Brainliest no explanation needed
    5·1 answer
  • What is the midpoint of the line segment with endpoints (-81, 3) and (6,-14) ? 1 totoo​
    13·1 answer
  • 9) If m/1 = 45° and 21 and 22 are complementary angles. Find m22.​
    5·1 answer
  • Points A, B, and C are located on a circle, and chords exist between all three points. If the measure of ∠BAC is 88°, what is th
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!