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
Marina86 [1]
2 years ago
14

Am not sure if I got the answers right can you explain this to me please

Mathematics
1 answer:
shusha [124]2 years ago
5 0

Answer:

So you have the multiplication and substitution right. It's just the subtraction.

Step-by-step explanation:

Now, the equation was y = 4x - 2

In the first one x = -3

So it will be 4(-3) - 2

Note: Anytime you see a bracket it means multiplication.

4× -3 = -12 and

-12 - 2 = -14

This is because a negative number minus another number is always negative.

And when dealing with negative numbers you add them but you negate the answer.

For example;

The second one will be -8 - 2

And 8 + 2 = 10

But since the numbers are negative we just negate the 10 making it - 10.

I hope this helps

You might be interested in
How do you find the surface area for this???
Katarina [22]
The surface area of any object is the sum of the areas of all the faces. In this case, we have a rectangular prism with dimensions 8x4x3 and a trianglar prism with a 8x4 rectangular base and height of 6.

Let's start with the rectangular prism. We have the bottom which is 8x4, two sides that are 3x4, and two sides that are 8x3.

8*4 + 2*3*4 + 2*8*3 = 104 in^2

Now that's find the surface area of the trianglar prism. We have the rectangular side on top which is 10x4, the rectangular side on the right which is 6x4, and two triangles that are 8 long and 6 high.

10*4 + 6*4 + 2*0.5*8*6 = 112 in^2

The total surface area is 104 + 112 = 216 in^2





8 0
3 years ago
Find the x-intercept and y-intercept of the line.<br> 6x + 3y = - 18<br> I NEED HELP ASP
ser-zykov [4K]
X-intercept = -3
y- intercept = -6
6 0
2 years ago
A national grocery store chain designed a study to determine whether its customers would be interested in home delivery. The cha
SashulF [63]
The parameter of the study's population is the 80% of all customers who shopped in the chain's stores that were interested in the home delivery service.

Population parameter is defined as any summary number that describes the entire population. It can be an average or a percentage/

The 1,000 customers that were surveyed are the sample of the population. They basically represent the population of the chain's customers. 
5 0
2 years ago
Read 2 more answers
(10 - 6i)/(2 + 8i) =?
Oliga [24]
<span>-0.411764706 - 1.35294118 i</span>
5 0
3 years ago
How many revolutions does a go kart with a wheel circumference of 62.8318 inches make in a 1609 m race? Please answer as quickly
Rudiy27

Answer: 1008 revolutions

Step-by-step explanation:

1 revolution is equal to 2\pi r

To find how many revolutions the wheel makes, you must divide the distance traveled in the race between the circumference of the wheel

You must first convert 62.8318 in to meters.

We know that 1 inch is 0.0254 meters

Then

62.8318\ in*\frac{0.0254\ m}{1\ in}= 1.5959\ m

revolutions = \frac{1609}{1.5959}\\\\revolutions=1008.21\\

Finally The wheel made 1008.21 revolutions

3 0
3 years ago
Other questions:
  • 7 copies of the sum of 8 and 4
    9·1 answer
  • If D varies directly with t and D is 105 when t is 3, find D when t is 8.<br><br> 35<br> 280<br> 840
    12·2 answers
  • If I receive $5 every Sunday for 365 days how much would I have at the end of those 365 days?
    11·1 answer
  • You have towels of 3 sizes. The length of one of them is equal to 3/4m, which makes up 3/5 of the length of the second. The leng
    14·1 answer
  • 7(r-5)-3=r+34 what is the answer
    9·1 answer
  • Determine if the two triangles shown are similar. If so, write the similarity statement.
    9·1 answer
  • Which is the correct algebraic expression for each phrase? <br> (Image)<br><br> Please answer ASAP!
    13·1 answer
  • Please help with #31!!! BRAINLIEST to correct answer!!
    12·2 answers
  • Geometry congruent triangles.<br> will give brainliest.
    5·1 answer
  • Can someone help me figure out how far away from the vertex the directrix is?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!