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
Bas_tet [7]
3 years ago
8

COME GET SOME COINS >:)

Mathematics
2 answers:
Mekhanik [1.2K]3 years ago
8 0

Answer:

yes please

Step-by-step explanation:

forsale [732]3 years ago
4 0

Answer:

ok lol

Step-by-step explanation:

You might be interested in
A group of tenth grade students responded to a survey that was asked which Math course they were currently enrolled in. The surv
ale4655 [162]

Answer:

C.

Step-by-step explanation:

The bottom-right most cell tells us that the total number of students that responded to the survey is 310 students.

To find the answer, we can go through each choice.

A. Females taking Geometry

Row 1 Column 2 tells us that 53 females are taking geometry. 53/310 is about 17%.

B. Females taking Algebra II.

Row 1 Colume 3 tells us that 62 females are taking Algebra II. 62/310 is 20%.

C. Males taking Geometry.

Row 2 Colume 2 tells us that 59 males are taking Geometry. 59/310 is about 19%. Choice C is correct.

D. Males taking Algebra I.

44 out of the total 310 respondents are male and is taking Algebra I. 44/310 is about 14%.

4 0
3 years ago
15 divided by 84<br> i need the answer now
Bingel [31]

Answer:

0.1785

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is the value of X that makes this answer true? x-3x=2(4+x)
Andreas93 [3]

The answer is x = -2

6 0
3 years ago
Read 2 more answers
Which expression gives the volume of a sphere with radius 17?
Ludmilka [50]

The formula for volume of a sphere is:

V = 4/3 * PI * r^3

Replace r with with given radius:

V = 4/3 * pi * 17^3

V = 4/3 * PI * 4913

You don't give the choices, but anything like the two equations I gave could be correct. Might even multiply the 4/3 by r^3?

If you list the choices I can tell you which one.

8 0
3 years ago
Read 2 more answers
An object is launched from a platform. its height in meters X seconds after the launch is modeled by h(x)=-5x^2+20x+60 how m
Alex

Answer:

6 seconds after launch.

Step-by-step explanation:

You should make sure  there aren't odd symbols in your question when you post it.

Assuming it is just the equation -5x^2 + 20x + 60, if you graph it you can see the path of the ball.  at x=0 this is the starting point It then hits the ground when it touches the x axis.  So this is finding zeroes of a quadratic.

You could do this several ways; find a way to factor it, guess and check, the quadratic formula or completing the square.  I will complete the square as that is what I am most used to.  If you would like to see another let me know.

The first step in completing the square is making sure the x^2 has a coefficient of 1, so now it has -5 so we have to factor out -5 from the equation.

-5x^2+20x+60 = -5(x^2 - 4x - 12)

Now you only really need to focus on the factored expression, but I will continue writing everything.  The next step is to find (b/2)^2 where b is the coefficient of the x term.  In this case -4.  so (b/2)^2 = (-4/2)^2 = 4.

Again, focusing on x^2 - 4x - 12 you want to add and subtract (b/2)^2 from that expression.  since you are adding and subtracting you are not changing the value, but we can use this.

-5(x^2 - 4x - 12) = -5(x^2 - 4x - 12 + 4 - 4)

Here you want to rearrange it a bit.  Originally c was the constant term, -12, now you want it to be the positive (b/2)^2, which is positive 4. also you can combine the two other constant terms.  the original c and -(b/2)^2, but I will hold off for now so I don't do too much at once.

-5(x^2 - 4x - 12 + 4 - 4) = -5(x^2 - 4x + 4 - 12 - 4)

Now you focus on x^2 - 4x + 4.  Hope fully you recognize this is the same as (x-2)^2.  This always happens at this step of the process.  also notice -2 = b/2.  Using only variables here are the first steps.

ax^2 + bx + c

a(x^2 + (b/a)x + (c/a))

a(x^2 + (b/a)x + (c/a) + (b/(2a))^2 - (b/(2a)^2)

a(x^2 + (b/a)x + (b/(2a))^2 + (c/a) - (b/(2a))^2)

a((x + b/(2a))^2 + (c/a) - (b/(2a))^2)

Again, being able to make x^2 - 4x + 4 into (x-2)^2 or x^2 + (b/a)x + (b/(2a))^2 into (x + b/(2a))^2 willa lways happen.  this is because if you expand (x + b/(2a))^2 you always get x^2 + (b/a)x + (b/(2a))^2.

Now I would combine the -12-4

-5(x^2 - 4x + 4 - 12 - 4) = -5((x - 2)^2 - 12 - 4) = -5((x - 2)^2 - 16)

If you redistribute the -5 you get vertex form, but I am going to stop here  because I will just undo that in the next step.  So this is the form you want.  Finally we can find when it equals 0.  So, you set this equal to 0 and use algebra to solve.

-5((x - 2)^2 - 16) = 0

Divide both sides by -5

(x-2)^2 - 16 = 0

add 16 to both sides

(x-2)^2 = 16

Take the square root of both sides, but also count botht he positive and negative version of the answer.  the reason is both 2 and -2 squared get you 4.

x - 2 = +/-4

I am using +/- to indicate I am using both positive and negative 4.  Now though add 2 to both sides.  since you have +/- 4 you are going to get two different results.  -4+2 and 4+2

x = -2 and 6.

now, the question wants times after x=0 (the start) so you only get 6.  so x=6, or in other words 6 seconds after launch.

Let me know if you have any questions.

3 0
3 years ago
Other questions:
  • A car valued at $20,000 depreciates at a rate of 2%during the first 5 years, then at a rate of 2.5% every year after that. What
    13·1 answer
  • The graph of y=-7x-10 is a ____ that shows the _____ to the equation
    9·1 answer
  • I really need help with this one <br>it says 8 of the beads are purple in case it's hard to see
    6·2 answers
  • Solve the inequalities by graphing. Select the correct graph. y &gt; x y &lt; -x
    12·2 answers
  • Which is bigger 0.6 or 3/4 and why
    14·2 answers
  • Put a digit in the gap, such that the answer is a whole number:<br> 9x–42=5... I will give brainiest
    15·1 answer
  • What is f(5)? please answer
    7·1 answer
  • 3c+2d=-24 and 2c+5d= -38
    14·1 answer
  • The problem is in the pic​
    13·2 answers
  • Simplify please:<br> 4x8=13-7
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!