MATHEMATICS HIGH SCHOOL

Graph the line bu locating any two ordered pairs that satisfy the equation


Y=-3x

Answers

Answer 1
Answer: I did it in my calculator and I found it online. 

Related Questions

Find the student’s error in solving the following inequality.2 < –3x –4 < 5 6 < –3x < 5 –2 > x > –5/3 a.The student should have added 4 to all parts (left, middle, and right) to get 6 < –3x < 9. b.The student divided 6/–3 incorrectly. c.The student should not have switched the direction of the sign in the final step.
Could someone help me please :)
The formula for the height of a ball as a function of time is given by the equation h = -16t^2 + vt + h, where h is the height of a ball in feet, v is the initial velocity of the ball in feet per second, h is the initial height of the ball in feet, and t is the time in seconds after the ball was thrown.If a ball is thrown from an initial height of 5 feet at an initial velocity of 20 feet per second, what is its height after 1 second?
Is 5/6 is greater than 10/12
When 12 is added to a number the result is 32 less than 3 times the number.What is the number?

The perimeter of a pool table is 30 feet. The table is twice as long as it is wide. What is the length of the pool table?

Answers

So, 30 is the perimeter. We are told the table is twice as long as it is wide.

So, we have think of 2 numbers, one being twice as big than the other. So, it is a rectangle The two number represents the length and the width. To find the perimeter we add all the lengths and the widths. Since the pool table is a rectangle we have two lengths and two widths.

So,

the tow numbers be 10 and 5. 5 is half of 10 and, when multiplied by 2 it is 10. So just to make sure the numbers 5 and 10 work out lets do a calculation.

So,

10+5+10+5 = 30feet. This proves that the sides are these two numbers.  

1) Transform the polynomial into a perfect square trinomial to solve. 3x^2+24x=27
a) {-21, -11}
b) {-29,21}
c) {-41,9}
d) {-1,1}

Answers

If you would like to solve 3 * x^2 + 24 * x = 27, you can do this using the following steps:

3 * x^2 + 24 * x = 27
3 * x^2 + 24 * x - 27 = 0
3 * (x^2 + 8 * x - 9) = 0
x^2 + 8 * x - 9 = 0
(x + 9) * (x - 1) = 0
1. x = - 9
2. x = 1

None of the above results is correct. The correct result would be {-9, 1}.

How do I solve 4cos^2 x -1=0

Answers

(cosx)^(2) = 1/4 <=> cosx = +1/2 or cosx = -1/2;
cosx = +1/2 => x = +π/3 + 2kπ, where k is an integer or x = -π/3 + 2kπ, where k is an integer;
cosx = -1/2 => x = +2π/3 + 2kπ, where k is an integer or x = -2π/3 + 2kπ, where k is an integer;

Answer:

pi/3? 2pi/3?

Step-by-step explanation:

Triangle RST is congruent to triangle .Which sequence of transformations could have been used to transform triangle RST to produce triangle ?

Choose exactly two answers that are correct.



A.
Triangle RST was reflected across the x-axis and then rotated 90° clockwise around the origin.

B.
Triangle RST was reflected across the x-axis and then reflected across the y-axis.

C.
Triangle RST was rotated counterclockwise 90° around the origin and then reflected across the x-axis.

D.
Triangle RST was translated 8 units right and then reflected across the x-axis.

Answers

Triangle RST is congruent to triangle .The sequence of transformations could have been used to transform triangle RST to produce triangle is Triangle RST was translated 8 units right and then reflected across the x-axis. The answer is letter D. The rest of the choices do not answer the question above

If you give a mouse a cookie geometry project. Please help it’s due Friday, I’ve been busy with other class works

Answers

Answer:

what they promote? describe each.

A soup can in the shape of a right circular cylinder is to be made from two materials. The material for the side of the can costs $0.015 per square inch and the material for the lids costs $ 0.027 per square inch. Suppose that we desire to construct a can that has a volume of 16 cubic inches. What dimensions minimize the cost of the can? a. Draw a picture of the can and label its dimensions with appropriate variables.
b. Use your variables to determine expressions for the volume, surface area, and cost of the can.
c. Determine the total cost function as a function of a single variable. What is the domain on which you should consider this function?
d. Find the absolute minimum cost and the dimensions that produce this value.

Answers

Answer:

a) file annex

b) V(c) = π*x²*y

    A(x) = 2*π*x² + 32/x

    C(x) =  0,1695*x²  +  0,48 /x

     Domain C(x) = {x/ x >0}

d) C(min) = 0,64 $

    x = 1.123 in      radius of base

    y = 4,04 in      height of the can

     

Step-by-step explanation:

See annex file

Lets:

call x = radius of the base of the cylinder  and

y = the height of the cylinder

Then

Volume of the cylinder      ⇒    V(c) =  π*r²*h             ⇒V(c) = π*x²*y

And  y = V / ( π*x²)     ⇒   V = 16 / ( π*x²)

Area of cylinder  = lids area  +  lateral area

lids area = 2*π*x²  ⇒  lateral area = 2*π*x*y

lateral area =2*π*x [16/(π*x²) ]    ⇒   lateral area =  32/x

Then

A(x) = 2*π*x² + 32/x

Function cost C(x)

C(x) = 0.027 *  2*π*x²  +  0.015 * (32/x)

C(x) =  0,1695*x²  +  0,48 /x

Domain C(x) = {x/ x >0}

Now function cost:

C(x) =  0,1695*x²  +  0,48 /x

Taking derivative:

C´(x) =  2*0,1695*x  - 0.48/x²     C´(x)  =  0,339*x  -  0.48/x²

C´(x)  = 0            0.339*x³ - 0.48 = 0   x³ = 0.48/0.339   x³  = 1.42

x = 1.123 in

y = 16/πx²     ⇒  y = 4,04 in

C(min) = 0,64 $
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