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
Georgia [21]
2 years ago
9

Solve the linear equation by using substitution X-y=-4 3x-y=-10

Mathematics
1 answer:
svetoff [14.1K]2 years ago
7 0

Answer:

(-3, 1)

Step-by-step explanation:

x-y=-4

3x-y=-10

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

y=x-(-4)=x+4

3x-(x+4)=-10

3x-x-4=-10

2x-4=-10

2x=-10+4

2x=-6

x=-6/2

x=-3

-3-y=-4

y=-3-(-4)=-3+4=1

x=-3, y=1. (-3, 1).

You might be interested in
Jason scored a total of 38.14points in four events during his state gymnastic compitition.if he had the same score for each even
Solnce55 [7]
That would simply be
                                  38.14 ÷ 4 = 9.535

thus he scored 9.535 on each event
3 0
2 years ago
Pls help due today <br><br>I will give brainliest​
MatroZZZ [7]

Answer:

I think its a) I only

Step-by-step explanation:

b gives a random value that isn't relevant to the question. C is backwards because F would increase more than C.

6 0
2 years ago
What is dy/dx if y = (x2 + 2)3(x3 + 3)2? A. 3(x2 + 2)2(x3 + 3)2 + 2(x2 + 2)2(x3 + 3) B. 2x(x3 + 3)2 + 3x2(x2 + 2)3 C. 6x(x2 + 2)
Vlada [557]
We want to find \displaystyle{  \frac{dy}{dx}, for

            \displaystyle{ y=(x^2+2)^3(x^3+3)^2.

Recall the product rule: for 2 differentiable functions f and g, the derivative of their product is as follows:

                                  (fg)'=f'g+g'f.

Thus,

 y'=[(x^2+2)^3]'[(x^3+3)^2]+[(x^3+3)^2]'[(x^2+2)^3]\\\\ =3(x^2+2)^2(x^3+3)^2+2(x^3+3)(x^2+2)^3

Answer: A)      3(x^2+2)^2(x^3+3)^2+2(x^3+3)(x^2+2)^3.



8 0
3 years ago
How many times larger is 9 x 10^9 than 3 x 10^-4?
andrezito [222]
The larger value is 9 x 10^9
The smaller value is 3 x 10^(-4)

Divide the larger over the smaller
Doing so will have you divide the coefficients 9 and 3 (numbers in front of the "times ten to the..." portions) to get 9/3 = 3. 
Then you'll also subtract the exponents: 9 minus (-4) = 9 - (-4) = 9 + 4 = 13

In summary so far, we got a coefficient of 3 and an exponent of 13

So the final answer is 3 x 10^13 (assuming you want scientific notation)

If you want to convert to standard notation, instead of scientific notation, move the decimal point in 3.0 thirteen spots to the right to get 

30,000,000,000,000

there are 13 zeros (four groups of 3 plus one just after the 3) in that value above. This is the number 30 trillion
8 0
3 years ago
Please help me <br> thank you
lilavasa [31]
Use the Pythagorean theorem. We have legs with lengths of 15 and 20 miles, now let's solve for the hypotenuse.

a=15
b=20
c=?

a^2+b^2=c^2
15^2+20^2=c^2
c^2=400+225=625
c=25

Your answer is 25 miles. Hope this helps! :)
7 0
3 years ago
Other questions:
  • Coffee beans worth $ 10.50 $10.50 per pound are to be mixed with coffee beans worth $ 13.00 $13.00 per pound to make 50 50 pound
    7·1 answer
  • How to convert 3mm into cm​
    9·2 answers
  • There are ten kids in a class. When any two meet, each says “hi” to the other and the answer “hi” follows. Before the class star
    8·2 answers
  • What is the degree of 6x to the second power
    13·2 answers
  • One question I need help with, I would really appreciate the help.
    7·1 answer
  • Which are the solutions of the quadratic equation?
    10·1 answer
  • 16. The temperature on the ground during a plane's takeoff was -7°F. At 38,000 feet in the air, the temperatureoutside the plane
    14·1 answer
  • I really need help I don’t know what todo I will do anything to get the best answer.(if u do 20 I will give 100 points and brain
    11·1 answer
  • Which equation has the solution x=6
    5·2 answers
  • Help plsssssssss .... another option was 16.4 couldn’t fit in picture
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!