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
elena-s [515]
3 years ago
10

Number 1 A to D and number 2 A to C....?

Mathematics
1 answer:
anyanavicka [17]3 years ago
5 0
A polynomial function is something that is in the form ax^n+bx^(n-1)...+c. For (a), we see that 4x^3 is the highest power of x, so everything after it must be to the power of an integer less than 3 and more than -1. Since -3x^2 is to the power of 2, that works. Since 2 is 2x^0, that works too (since anything to the power of 0 is 1)

For (b), we get that .4x^3 is, again, to the highest power in this expression. However, sqrt(x) is x to the power of 1/2, which is not an integer and therefore making it not a polynomial function.

I challenge you to do c and d on your own using what I said!

For 2, we have f(3)=2 and f(4)=7. That means that we have the coordinates (3,2) and (4,7). Since the equation is y=mx+b, m(the slope) is found by 
(x1-x2)/(y1-y2), x is the first number is the point, so 3 and 4 are both x values. Y values are the second number. (3-4)/(2-7)=-1/-5=1/5, which is the slope, making our equation y=(1/5)x+b. Since y and x must always stay that way (in the final equation) we just need to find b. To find it, we can plug in 3 and 2 for x and y respectively, getting 2=(1/5)*3+b=0.6+b. Subtracting 0.6 from both sides, we get b=1.4, making the equation y=(1/5)*x+1.4.

I challenge you to do B and C on your own using what I said!
You might be interested in
5x + 3 = 7x – 1. Find x
nasty-shy [4]

Answer:

x = 2

Step-by-step explanation:

5x + 3 = 7x - 1

Subtract 3 to both sides

5x = 7x - 4

Subtract 7x to both sides

-2x = -4

Divide by -2 to both sides.

x = 2

Hope this helps and pls do mark me brainliest if you can:)

5 0
3 years ago
Pls help fast I am dumb and I need to go to 2 competitions today!!!
aliina [53]

Answer:0.25

Step-by-step explanation:

Just type it in a calculator

3 0
3 years ago
Read 2 more answers
Hi i need help please:))​
marin [14]

Answer:

i got 96

Step-by-step explanation:

you have to find the unit rate for 1 driveway and times that by 12

32 divided by 4 is 8

8 x 12 is 96

hope this helps :)

4 0
3 years ago
What does 3/4 + 1/3 = <br> quick answers i need to pass this
inn [45]

Answer:

1 1/12

Step-by-step explanation:

3/4 + 1/3

Get a common denominator of 12

3/4 * 3/3 = 9/12

1/3 * 4/4 =4/12

9/12 + 4/12

13/12

12/12 + 1/12

1 1/12

6 0
3 years ago
What is the area of the figure?
morpeh [17]

Answer:

80 square feet

Step-by-step explanation:

You can split it into a rectangle and a triangle. The area of the rectangle would be 2 * 16 = 32 square feet.

Next, you need to find the height of the triangle. To do this, you can split the triangle into two right triangles and use the pythagorean theorem to find the height. The dimensions of one of the right triangle is 8 for one of the legs and 10 for the hypotenuse. Using the pythagorean theorem, 8^2 + b^2 = 10^2, which is 64 + b^2 = 100, so b^2 = 36 and b = 6. This means that the height is 6. Now, you find the area of the triangle and you get 16 * 6 / 2 = 48.

Adding the area of the rectangle and the triangle: 32 + 48 = 80

Not sure why that's not an answer choice, I'm fairly confident it's right.

8 0
3 years ago
Other questions:
  • Can someone help me solve X please?
    13·1 answer
  • 90+8=x+k<br> x=72<br> k=?<br> help please
    10·2 answers
  • On Monday Charlie earned $16 for 2 hours of babysitting. Getting paid the same rate he earned $40 for babysitting on Saturday Ho
    10·2 answers
  • I need help with these two problems... PLZ HELP ME!!!!!!!
    14·1 answer
  • I need help on this question
    15·1 answer
  • Orthopedic surgery students compared two types of spinal surgery to determine if patients were able to return to their active li
    12·1 answer
  • Question 1
    5·1 answer
  • How to answer this? A farmer had 455 ducks and chickens. He sold 2/5 of the ducks and bought another 104 chickens. As a result,
    9·1 answer
  • Write the explicit rule. 21,-9,-39,-69
    15·1 answer
  • Three friends split the cost of a pizza. The total was $25.68. Each person paid the same amount. How much did each person pay
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!