When considering linear equations, what is a y-intercept?

Answers

Answer 1

Answer:

Definition

A y-intercept is the place where a line or curve crosses, or touches, the y-axis - the vertical, often darkened line in the center of a graph. It is also the point at which x = 0.

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lius has 5 over 8 quart of grape juice he pours the same amount in each 5 glasses which equation represents the fraction of a quart of grape juice n that is in each glass
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Jamie had 20 marbles 5 marbles were green and 15 were blue what percent of the marbles were blue?

Answers

Answer:

Step-by-step explanation:

15/20 X 100% = 75%

Therefore 75% of marbles were blue

In which of the following units is acceleration expressed? A. Kilograms
B. Meters per second squared
C. Foot-pounds
D. Newtons

Answers

The question is,' in which of the following unit is acceleration expressed. The correct option is B. Acceleration is defined as the rate of change of velocity per unit time. The unit of velocity is meter per second while the unit of time is second, therefore, the unit of acceleration is meter per second per second or meter per second squared [m/s2].

your answer is B. Meters per second squared

i just took the test

The graphs below have the same shape. The equation of the red graph is F(x)=x^3What is the equation of the blue graph?

Answers

It would be D

G(x) = (x+5)^3

since this function represents a horizontal shift 5 to the left. also you can think about this that -5 is a root and the function only equals 0 at -5

a landscaper is designing a flower garden in the shape of a trapezoid. she want to make to shorter base 3 yards greater than the height and the longer base 7 yards greater than the base. she wants the area 295 square yards. the situation is modeled by the equation h^2+5h=295. use the quadratic formula to find the height that will give the desired area

Answers

we know that

The formula to calculate the solutions of the quadratic equation of the form $ax^(2) +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^(2)-4ac}}{2a}$

in this problem we have

$h^(2) +5h=295$

equate to zero

$h^(2) +5h-295=0$

$a=1\ b=5\ c=-295$

substitute in the formula

$x=\frac{-5(+/-)\sqrt{5^(2)-4(1)(-295)}}{2*1}$

$x=(-5(+/-)√(25+1,180))/(2)$

$x=(-5(+/-)√(1,205))/(2)$

the positive solution is

$x=(-5+√(1,205))/(2)=14.86\ yd$

therefore

the answer is

The height is $14.86\ yd$

put you formula in this way: ax^2+bx+c=0 this is h^2+5h-295=0
Now solve with the second grade equation
a=1, b=5, c=-295
you will get h=14.86 and h=-19.86, you can not have negative numbers so the only answer is 14.86

What is the perimeter of a trapezoid having side lengths of 20 ft, 20 ft, 26 ft and 18 ft?

Answers

Hello! :) So we know perimeter means around, right? So we would do 20 + 20 + 26 + 18 which equals 84. Finally 84 ft is our answer!

Hope it helps! :)

I think it's about 84 ft

I REALLY NEED HELP !!!The number of hours, t, that bacteria spread 10-fold can be modeled by the equation B(t) = B0(10)^3t. There are five bacteria present initially and a biologist wishes to find out how many hours will elapse until there are 2,000 bacteria present. What is the exact value for the number of hours elapsed, t, in the equation 2,000 = 5(10)^3t?

t equals start fraction log of forty over three end fraction
t equals start fraction log of two thousand over three times log of fifty end fraction
t equals start fraction log of four hundred over log of three end fraction
t equals start fraction log of four hundred over three end fraction

Answers

I think the answer is c

The answer is t=2/5

Im sorry if this is incorrect! Tried my best at least! Good luck :)

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