Please help me out :( I’m so behind :((

Answer:

Equation of the  parabola    x² = -12.56 y

Step-by-step explanation:

Explanation:-

Given Y- intercept ( 0, -3.14)

Given Focus is ( 0 , -a) = ( 0, -3.14)

So  a = 3.14 center C(0,0)

The graph of the parabola is downwards and the axis of the parabola is Y-axis.

Equation of the standard parabola    x² = -4 a y

                                                              x² = -4 (3.14) y

                                                              x² = -  12.56 y

Conclusion:-

Equation of the  parabola    x² = -12.56 y

Answer: The equations have no solution because no solution graphs have the same slopes but difference y- intercepts.And by looking at the equations they both have same slope as 3 but different y-intercepts 5 and -5.

Step-by-step explanation:

y= 3x + 5

y = 3x- 5

3x + 5 = 3x -5

-3x          -3x

       5 ≠ 5  

Answer:

The answer is, A. it is constant

Step-by-step explanation:

Between the x values 4 and 8 the line does not decrease or increase. It stays in a straight line causing it to be constant.

Answer: Its constant ( constant means it isnt moving like its just stable)

Answer:

D. 360 square feet

Step-by-step explanation:

The area of Tara's wall is 24 times 15 which equals 360 sq. feet. This means she would need the same amount of wallpaper to cover it.

Answer:

y = (x + 4)(x + 3)

Step-by-step explanation:

y = x ^2 + 7x + 12

The two numbers must add up to 7 and has a product of 12, and since the equation is all positive, then the two numbers are positive too.

So y = (x + 4)(x + 3) is the answer.

Check:

y = (x + 4)(x + 3)

y = x(x + 3) + 4(x + 3)     distributive property

y = x^2 + 3x + 4x + 12

y = x^2 + 7x + 12

Answer:

Step-by-step explanation:

area and perimeter of WHAT? specify plz.

Answer:

So far I have gotten 3m + n, there is not equal sign so I am unable to finish this question further.

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

In 3 weeks the stock decreased 60 + 10 + 20 = 90 cents so it decreased about 90 / 3 = 30 cents per week so it is D.

Answer:

The answer is D

Step-by-step explanation:

I took the test.

Answer:

Tip = $4.50

Total = $34.50

Step-by-step explanation:

Multiply 29.99 by .15 to find the tip.

Then add the tip to the original number.

Answer:  (d) x

Step-by-step explanation:

Inverses cancel each other leaving you with whatever is in the parenthesis.

Examples:

f(g(x)) = x

f(g(1)) = 1

f(g(2bc) = 2bc

Answer:

X= 55/3 = 18.333

Step-by-step explanation:

Step  1  : Solving a Single Variable Equation : 1.1      

Solve  :    3x-55 = 0

Add  55  to both sides of the equation : 3x = 55

Divide both sides of the equation by 3: x = 55/3 = 18.333

Answer: X= 55/3 = 18.333

Hope i  made your day if not. Then what is wrong with your life.    :)

Answer:

[tex]x = 18.33[/tex]

Step-by-step explanation:

[tex]3x + 13 = 68 \\ 3x = 68 - 13 \\ 3x = 55 \\ \frac{3x}{3} = \frac{55}{3} \\ x = 18 .33[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer:

x=3, y=15

Step-by-step explanation:

We substitute 5x for y, getting 5x = -3x + 24. We add 3 x to both sides, and have a equation like this: 8x = 24. Divide by 8 on both sides, and we know that x = 3. Since y is 5x, y is 5*3, which is 15.

Answer:

[tex]y=\frac{1}{2} x+10[/tex]

Step-by-step explanation:

[tex]-\frac{1}{2} x+y=10\\[/tex]

Add [tex]\frac{1}{2} x[/tex] to both sides

[tex]y=10+\frac{1}{2} x\\\\y=\frac{1}{2} x+10[/tex]

Answer:

Step-by-step explanation:

Given the distance of a swinging pendulum modeled by the equation P(t)=−5cos(2πt)+5, to get the first time the pendulum reaches 3.5cm, we will have to substitute P(t)= 3.5cm into the given equation and calculate the value of 't' as shown;

3.5 = −5cos(2πt)+5

Subtracting 5 from both sides;

3.5-5 = −5cos(2πt)+5-5

-1.5 = −5cos(2πt)

Dividing both sides by -5 will give;

[tex]\frac{-1.5}{-5} = cos2\pi t\\0.3 = cos2\pi t\\2\pi t=cos^{-1} 0.3\\2\pi t = 72.54^{0} \\360t = 72.54^{0} \\t = \frac{72.54}{360} \\t = 0.20secs[/tex]

The first time the pendulum reaches 3.5cm is after 0.20secs

Answer:

aprox: 9 years?

Step-by-step explanation:

im sorry if this is wrong!

Answer:

16.49

Step-by-step explanation:

Answer:I think 60

Step-by-step explanation:

Answer:

60 i am positive

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

1+1

Answer:

12

Step-by-step explanation:

This would be the 5th term in the sequence.

Numbers are decreasing by two

Hope this helps!

Answer:

12 would be the 5th term

Answer:

Step-by-step explanation:

the Pythagorean theorem is :

a^2+b^2=c^2

c is the hypotenuse

if y is the hypotenuse  then x^2+z^2=y^2

if x is the hypotenuse then y^2+z^2=x^2

One possibility could be :

y = x - 3

wherein:

x : number of apples on Monday

y : number of apples on Tuesday, the day after

Hope I helped you! :)

Have a great day/night!!

Answer:9

Step-by-step explanation:

The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator. Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1. (14/2 x 3/3)+(12/6 x 1/1). Complete the multiplication and the equation becomes  42/6+12/6. The two fractions now have like denominators so you can add the numerators. 42+12/6=54/6. Divide 54 by 6 and get 9. hope this helps :)

Answer: 30.

Step-by-step explanation: This is a triangle with a 90 degree angle and a 60 degree angle. So, a 180 degree angle - a 90 degree angle - 60 degree angle = 30.

Answer:

$27

Step-by-step explanation:

The dimensions of the sandbox (that is a rectangular prism) are 3m x 2m x 1m.

We need to first find the volume of the sandbox.

The volume of a rectangular prism is:

V = L * W * H

where L = length

W = Width

H = height

The volume of the sandbox is:

V = 3 * 2 * 1 = [tex]6 m^3[/tex]

Sand for the sandbox costs $4.50 per cubic meter.

The cost to completely fill the sandbox is:

4.50 * 6 = $27

Answer:

x = -8

Step-by-step explanation:

solve:

-4(2x+3) =2x+6-(8x+2)

-8x-12 = 2x+6-8x-2

-8x-12 = -6x + 4

-2x = 16

x = -8

Hope this helps.

Good Luck

Answer:

[tex]x = - 8[/tex]

Second answer is correct

Step-by-step explanation:

[tex] - 4(2x + 3) = 2x + 6 - (8x + 2) \\ - 8x - 12 = 2x + 6 - 8x - 2 \\ - 8x - 12 = - 6x + 4 \\ - 8x + 6x = 12 + 4 \\ - 2x = 16 \\ \frac{ - 2x}{ - 2} = \frac{16}{ - 2} \\ x = - 8[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer:

13

Step-by-step explanation:

v=k+5

k=Kora's age

if v=18

k=v-5

k=18-5

j=13