Help ASAP!!!!Select all expressions that are perfect squares.

Group of answer choices

2x^2+20x+100

9x^2+24x+16

(7−3x)^2

(5x+4)(5x−4)

(1−2x)(−2x+1)

4^2+6+9/4

Answers

Answer 1

Answer:

The expressions that are perfect squares are:

2x² + 20x + 100

9x² + 24x + 16

(7 - 3x)²

To determine which expressions are perfect squares, we need to check if they can be written in the form of (a + b)², where a and b are real numbers.

Let's go through each expression:

2x² + 20x + 100:

This expression can be factored as (x + 10)², so it is a perfect square.

9x² + 24x + 16:

This expression can be factored as (3x + 4)², so it is a perfect square.

(7 - 3x)²:

This expression is already in the form (a - b)², so it is a perfect square.

(5x + 4)(5x - 4):

This is the difference of squares, not a perfect square itself.

(1 - 2x)(-2x + 1):

This is the difference of squares, not a perfect square itself.

4² + 6 + 9/4:

Simplifying, we get 16 + 6 + 9/4 = 22 + 9/4.

This expression is not a perfect square.

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Answer 2

Answer:

Answer:

2x^2+20x+100, 9x^2+24x+16, (1−2x)(−2x+1), (5x+4)(5x−4), (7−3x)^2

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Write 5.2 as the quotient of two integers A...11/3
B...21/5
C...26/5
D...51/10

Answers

Answer:

C) $(26)/(5) = 5.2$ .

Step-by-step explanation:

Given : Number 5.2

To find : write 5.2 as the quotient of two integers.

Solution : We have given Number 5.2

For $(11)/(3) = 3.666$ .

For $(21)/(5) = 4.2$ .

For $(26)/(5) = 5.2$ .

For $(51)/(10) = 5.1$ .

So, 5.2 is quotient of 26 and 5 integers.

Therefore, C) $(26)/(5) = 5.2$ .

it would be C because what i did A. 11 divided by 3=3.666666666666666666
B.21 divided by 5=4.2 C. 26 divided by 5= 5.2 D. 51 divided by 10=5.1 we want 5.2 and C = 5.2

What is the distance from (−2, 4) to (0, −6)? Round your answer to the nearest hundredth.

Answers

Answer:

10.2

Use the formula:

d=√(x - x) + (y - y)

2 1 2 1

Word form :

d equals the square root of x2 - x1 plus y2 - y1

Solve y = x + 6 for x.A. x = y + 6

B. x = -y + 6

C. x = y - 6

D. x = -y - 6

Answers

You answer is the second

Answer:

B: x = -y+6

Step-by-step explanation:

Since y = x+6:

Bring x and y to their opposite sides:

x = -y+6

I hope this helps and plz mark me brainliest!!

In the function f(x) what is f(3)

Answers

Hello there!

f(x)=x
f(x) is also known as y
x is 3, which means the x value on the right is 3

Answer: f(3)=3

the sum of Kris and Victor's ages is 27 years. in 3 years, victor will be twice as old as Kris will be. what are their present ages?

Answers

let k=kris and victor =v
k+v=27
in 3 years, victor will be twice as old as kris will be.so
v+3=2(k+3)
v=2k+6-3
v=2k+3
so (2k+3)+k=27
3k=24
k=8 27-8=19
kris is 8 years now. victor is 19 years old.

LET KRIS'S AGE BE X YEARS AND VICTOR'S AGE BE Y YEARS
GIVEN, X + Y = 27 ------------EQ 1
IN THREE YEARS,
KRIS WILL BE X+3 YEARS AND VICTOR WILL BE Y+3 YEARS
GIVEN , Y+3 = 2(X +3 )
Y+3 = 2X+ 6
Y - 2X =6-3
Y - 2X =3 ------------EQ 2
FROM EQ 1 WE GET,
X =27 -Y
SUBSTITUTING THE VALUE OF X IN EQ 2 ,WE GET
Y - 2(27 -Y) =3
Y - 54 +2Y =3
3Y-54 =3
3Y =57
Y=57/3 =19
PUTTING THE VALUE OF Y IN EQ 1
X +19 =27
X =27-19=8
THEREFORE, KRIS IS 8 YEARS OLD AND VICTOR IS19 YEARS OLD

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27p4q
36p3q6
63p3
72p3q6