MATHEMATICS HIGH SCHOOL

Find the product. (a2 + 2a + 1)(a + 1) a. A2 + 3a + 2 b. A3 + 3a2 + 3a + 1 c. A3 + 2a 2 + a + 1 d. A3 + 3a2 + a + 1

Answers

Answer 1

Answer:

(a + 1)(a² + 2a + 1)

= a(a² + 2a + 1) + 1(a² + 2a + 1)

= a³ + 2a² + a + a² + 2a + 1

= a³ + 3a² + 3a + 1

Answer: b

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I need help asap pleaseee

Solve and SHOW YOUR WORK for the equation 3(4x – 2) = 9 + 2x + 5

Answers

remember
you can do anyting to an equaiton as long as you do it to both sidess

distributive property
a(b+c)=ab+ac
commutativ property
a+b=b+a

distribute
3(4x-2)=12x-6

12x-6=9+2x+5
add 6 both sides
12x+6-6=9+6+5+2x
12x+0=20+2x
minus 2x
10x=20
divide 10
x=2

I wrote how to do it on paper and uploaded the files. Hope this helps. :D

How many points does y=4x^2-9x+9 cross the x axis

Answers

Zero point

because when you graph it, it'll look like a V

This graph will not touch with the -x or +x axis so that's why I said zero point.

I hope that's help:)

Which of the following groups of numbers are all prime numbers? A. 2, 5, 15, 19 B. 7, 17, 29, 49 C. 2, 3, 5, 9 D. 3, 11, 23, 31

Answers

So,

The prime numbers from 1 to 50 are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47.

Group A contains 15, which is a composite number (3 * 5).

Group B contains 49, which is a composite number (7 * 7).

Group C contains 9, which is a composite number (3 * 3).

Group D contains no composite numbers. They are all prime.

Group D contains only prime numbers.

some prime numbers
2,3,5,7,11,13,17,19,23,29,31
just try to divide by those and if you an, then it isn't prim

A. 15/3=5 so not prime
B. 49/7=7, not prime
C. 9/3=3 not prime
D. all prime

answe ris D

Find the vertex of the parabola
y= x^2-2x-1
vertex (?,?)

Answers

$y=ax^2+bx+c\n\nvertex:(x_v;\ y_v)\n\nx_v=(-b)/(2a)\ and\ y_v=f(x_v)$

$y=x^2-2x-1\n\na=1;\ b=-2;\ c=-1\n\nx_v=(-(-2))/(2\cdot1)=(2)/(2)=1\n\ny_v=1^2-2\cdot1-1=1-2-1=-2\n\nAnswer:(1;-2)$

$y=a(x-h)^2+k \Rightarrow \hbox{vertex}=(h,k)\n\n y=x^2-2x-1\n y=x^2-2x+1-2\n y=(x-1)^2-2 \Rightarrow \hbox{vertex}=(1,-2)$

HELP!! (20-30 points) and brainlist

Answers

Answer:

82.8

Step-by-step explanation:

Formula

multiply the length value by 36

A function is shown in the table.x g(x)
−2 2
−1 −3
0 2
1 17

Which of the following is a true statement for this function?
(A)The function is increasing from x = −2 to x = −1.
(B)The function is increasing from x = 0 to x = 1.
(C)The function is decreasing from x = −1 to x = 0.
(D)The function is decreasing from x = 0 to x = 1.

Answers

Answer:

(B) increasing from x=0 to x=1

Step-by-step explanation:

I took the test

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