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2 years ago

Helppppppp pleaseeeeeeee

Mathematics

1 answer:

Lilit [14]2 years ago

4 0

B. Is the right answer

First you have to take the common elements then use an identity/formula to get the rest

x^3 - 3x^2 + x-3
x^2 (x-3) +1 (x-3)
(x^2 +1) (x-3)
(x-1)(x+1)(x-3) {using a^2-b^2 on x^2-1^2}

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A ball has been thrown into the air its distance from the ground is given by the function s(t)=-16t^2+96t+100

slega [8]

Answer:

For t=3 sec the velocity change from positive to negative

Step-by-step explanation:

we have

$s(t)=-16t^2+96t+100$

This is the equation of a vertical parabola open downward (the leading coefficient is negative)

where

s(t) is the distance in feet

t is the time in seconds

We know that

To find out when the velocity change from positive to negative, we need to determine the turning point of the quadratic equation

The turning point of the quadratic equation is the vertex

Convert the quadratic equation into vertex form

$s(t)=-16t^2+96t+100$

Factor -16

$s(t)=-16(t^2-6t)+100$

Complete the square

$s(t)=-16(t^2-6t+9)+100+144$

$s(t)=-16(t^2-6t+9)+244$

Rewrite as perfect squares

$s(t)=-16(t-3)^2+244$

The vertex is the point (3,244)

therefore

For t=3 sec the velocity change from positive to negative

8 0

2 years ago

Watch help Video

Alexus [3.1K]

Answer: 5 $y$ − 1 + $y^{2}$

Step-by-step explanation:

Hey there! I will give the following steps, if you have any questions feel free to ask me in the comments below. Thank you!

Step 1: Collect like terms.

(3 $y$ + 2 $y$ ) + (6 − 3 − 4) + (-6 $y^{2}$ + 7 $y^{2}$ )

Step 2: Simplify.

5 $y$ − 1 + $y^{2}$

~I hope I helped you! :) Good luck!~

6 0

2 years ago

ASSUME 3 IN EVERY 2000 STUDENTS AT A LOCAL COMMUNITY COLLEGE HAVE TO QUIT DUE TO A SERIOUS HEALTH ISSUE. AN INSURANCE COMPANY OF

WARRIOR [948]

From 2000 students paying $50 a year, they make $100,000. Lets say the 3 students who get in serious trouble with health use the whole policy of $12,000. thats $36,000. So the insurance company made $64,000 profit.

8 0

2 years ago

the table shows the highest of four students arrange the students in order from shortest to tallest Kim 56.03 + x + 56.3 + 56.14

saul85 [17]

56.03 56.14 56.3 57.1

6 0

2 years ago

Which expression represents the phrase?

nata0808 [166]

Answer:

Step-by-step explanation:

the step by step explanation is that because the word increase is the clave word just belive in me