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
Tanzania [10]
3 years ago
13

Please solve it fastand give the correct answer pleaseeeeee​

Mathematics
1 answer:
ivolga24 [154]3 years ago
8 0

Answer:

a. False b. True c. True d. False e. False

Step-by-step explanation:

You might be interested in
How to do this question plz ​
sergeinik [125]

Answer:

The answer is yes.

Step-by-step explanation:

All you have to do is substitute the y, which is 5, and the x, which is 2, into the equation. When you solve it the answer in the end will be 5=5, which means that point (2,5) does line on that line.

3 0
3 years ago
Stella can type 150 words in 5 minutes. What is her rate per minute?
enot [183]

Answer: Stellas rate per minute is 30 words per minute

Step-by-step explanation:

7 0
3 years ago
Which statements are true about the graph of the function f(x) = x2 – 8x + 5? Check all that apply.
statuscvo [17]

Answer:

A, D, E are true

Step-by-step explanation:

You have to complete the square to prove A.  Do this by first setting the function equal to 0, then moving the 5 to the other side.

x^2-8x=-5

Now we can complete the square.  Take half the linear term, square it, and add it to both sides.  Our linear term is 8 (from the -8x).  Half of 8 is 4, and 4 squared is 16.  So we add 16 to both sides.

(x^2-8x+16)=-5+16

We will do the addition on the right, no big deal.  On the left, however, what we have done in the process of completing the square is to create a perfect square binomial, which gives us the h coordinate of the vertex.  We will rewrite with that perfect square on the left and the addition done on the right,

(x-4)^2=11

Now we will move the 11 back over, which gives us the k coordinate of the vertex.

(x-4)^2-11=y

From this you can see that A is correct.

Also we can see that the vertex of this parabola is (4, -11), which is why B is NOT correct.

The axis of symmetry is also found in the h value.  This is, by definition, a positive x-squared parabola (opens upwards), so its axis of symmetry will be an "x = " equation.  In the case of this type of parabola, that "x = " will always be equal to the h value.  So the axis of symmetry is

x = 4, which is why C is NOT correct, either.

We can find the y-intercept of the function by going back to the standard form of the parabola (NOT the vertex form we found by completing the square) and sub in a 0 for x.  When we do that, and then solve for y, we find that when x = 0, y = 5.  So the y-intercept is (0, 5).

From this you can see that D is also correct.

To determine if the parabola has real solutions (meaning it will go through the x-axis twice), you can plug it into the quadratic formula to find these values of x.  I just plugged the formula into my graphing calculator and graphed it to see that it did, indeed, go through the x-axis twice.  Just so you know, the values of x where the function go through are (.6833752, 0) and (7.3166248, 0).  That's why you need the quadratic formula to find these values.

7 0
3 years ago
Hey are using WordPress for your blog platform? I'm new to the blog world but I'm trying to get started and set up my own. Do yo
Inga [223]
Can you gimme 10 points
7 0
3 years ago
Solve the equation. -0.2(30) + 0.5x = 0.2(30 + x)
Travka [436]

Answer:

x=40

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • Tara read 4 5/8 pages of the arts section in the newspaper. She read 3 7/8 pages of the sports section. How many more pages of t
    11·1 answer
  • Twelve more than seven times a number is the number plus 18. What is the number?
    12·1 answer
  • I need to find Y=Mx+b. I found M but i forgot how to find B. Help
    9·1 answer
  • Solution to 34x-80=10x-8​
    11·2 answers
  • Someone please help<br>Domain:<br>Range:<br>Function (yes/no)​
    6·1 answer
  • Help me i will give brainliest...Have a goodnight
    12·1 answer
  • If the points (1, -4) and (-1, r) and lie on a line whose slope is 5, what does r equal?
    11·1 answer
  • Which expression can have a remainder greater than 7?
    14·2 answers
  • For second answer how do you get it plz urgent plz
    5·1 answer
  • 12 of the 28 dogs at the shelter are purebred what percent of the dogs are pure breed?HELP!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!