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
LenKa [72]
3 years ago
13

Solve the following system by graphing x + y - 6= 0 x- y = 0

Mathematics
2 answers:
DochEvi [55]3 years ago
7 0

Answer:

(3,3)

Step-by-step explanation:

x + y - 6= 0

x- y = 0

Add the two equations together

x + y - 6= 0

x- y = 0

-------------------

2x - 6 = 0

Add 6 to each side

2x-6+6 = 0

2x = 6

Divide by 2

2x/2 = 6/2

x = 3

Now find y

x-y = 0

3 - y = 0

y = 3

cupoosta [38]3 years ago
4 0

Answer:

Step-by-step explanation:

y=6-x first equation

y=x for the second

You might be interested in
Solve using double substitution<br><br> y=x-7<br> y=-2x+8
Ivenika [448]

Answer:

(5, -2)

Step-by-step explanation:

x - 7 = -2x + 8

add 2x to both sides

x - 7 + 2x = -2x + 8 + 2x

3x - 7 = 8

Add 7 to both sides

3x - 7 + 7 = 8 + 7

3x = 15

3x = 15

x = 5

y = 5 - 7

y = -2


Solution (5, -2)

8 0
3 years ago
5. Al earns $96 for six hours of work. How much would he earn in eight hours?​
love history [14]

Answer:

96/6=16

16x8=128

Therefore Al makes 128 dollars for 8 hours

7 0
3 years ago
Read 2 more answers
I spent all my points into this so give it your best shot
liubo4ka [24]

Answer:

7

Step-by-step explanation:

This is the value of "f(x)"  when "x = 0" .

8 0
3 years ago
A one­sided test of a hypothesis, based on a sample of size 9, yields a P­value of .035. Which of the following best describes t
lana [24]

Answer:

1.86 < t < 2.31

Step-by-step explanation:

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the mean height actually is higher\lower than an specified value, the system of hypothesis would be:  

Null hypothesis:\mu \leq \mu_o  

Alternative hypothesis:\mu > \mu_o

Or like this:

Null hypothesis:\mu \geq \mu_o  

Alternative hypothesis:\mu < \mu_o

If we analyze the size for the sample is < 30 and we don't know the population deviation so is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:  

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

Calculate the statistic

We don't know on this case the calculated value and with the p value we can find it.

P-value

The first step is calculate the degrees of freedom, on this case:  

df=n-1=9-1=8  

Since is a one side test the p value would be:  

p_v =P(t_{(8)}>t_o)=0.035

And we can find the critical value with the following excel code:

" =T.INV(1-0.035,8)" and we got t_p =2.09

And cannot be a lower tail test since all the options have positive values for the statistic. So on this case the best option is:

1.86 < t < 2.31

8 0
4 years ago
Isabella uses the equation V = one-third (12) squared (9) pi to find the volume of the cone below.
lyudmila [28]

Isabella’s error is  Isabella should have divided the product of 12π and 9 by 3 to get V = 12π(9)/3 option fourth is correct.

<h3>What is a cone?</h3>

It is defined as a three-dimensional shape in which the base is a circular shape and the diameter of the circle decreases as we move from the circular base to the vertex.

\rm  V=\pi r^2\dfrac{h}{3}

Isabella equation:

\rm V = \dfrac{1}{3}(12)^2(9)\pi

The area of the base = 12π square cm

\rm V = \dfrac{12\pi (9 )}{3}

Thus, Isabella’s error is  Isabella should have divided the product of 12π and 9 by 3 to get V = 12π(9)/3 option fourth is correct.

Learn more about the cone here:

brainly.com/question/16394302

#SPJ1

6 0
2 years ago
Other questions:
  • Applying the Product Property
    6·2 answers
  • I'm not really sure how to fro it, can anyone help me?
    6·1 answer
  • Lines m and n are parallel. Lines m and n are parallel. Lines s and t intersect lines m and n to form a triangle. The top angle
    12·2 answers
  • HELP PLEASE!!!!!!!!!!!!!!!!!!!
    12·1 answer
  • 319.85 and 412.99<br><br> percent markup<br><br> round to the nearest whole percent
    5·1 answer
  • HELP PLEASE!!! NEED FAST ANWER!!
    10·2 answers
  • Hiiiii<br>how are yallllllllllll<br>chaa.t plaease​
    12·2 answers
  • Which type of transformation is shown in the graph?
    9·2 answers
  • What is the absolute value of -9
    14·1 answer
  • What are the following of this function y = 4sin (2( x - <img src="https://tex.z-dn.net/?f=%5Cfrac%7B3%5Cpi%20%7D%7B4%7D" id="Te
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!