HELP PLEASE I NEED ANSWER NOW

Answer:

[tex](7+x)^2=x^2+14x+49[/tex]

Step-by-step explanation:

I'm guessing you are wanting to expand the expression?

[tex](7+x)^2=(7+x)(7+x)=(7)(7)+(7)(x)+(x)(7)+(x)(x)=49+7x+7x+x^2=x^2+14x+49[/tex]

Answer:

1/8 for each

Step-by-step explanation:

4 decided by 2 for each one

Answer:

(0,4)

Step-by-step explanation:

Multiply each point by 1/3

0 x 1/3 = 0

12 x 1/3 = 4

Dilation involves changing the size of the polygon

The best rule of dilation is [tex](x,y) \to \frac 72(x,y)[/tex]

The coordinates of vertices Q and Q' are given as;

Q = (6,2)

Q' = (21, 7)

The scale factor of dilation is then calculated as:

[tex]k = \frac {Q'}{Q}[/tex]

So, we have:

[tex]k = \frac {(21,7)}{(6,2)}[/tex]

Factorize

[tex]k = \frac {7/2(6,2)}{(6,2)}[/tex]

Divide

[tex]k = \frac {7}2[/tex]

So, the transformation rule is:

[tex](x,y) \to \frac 72(x,y)[/tex]

Hence, the best rule of dilation is [tex](x,y) \to \frac 72(x,y)[/tex]

Read more about dilation at:

https://brainly.com/question/3457976

Answer:

add all the sides

Step-by-step explanation:

1+5+3+1 = 10 cm

Answer:

yes

Step-by-step explanation:

because x=3 in both scenarios

Answer:

5

Step-by-step explanation:

ten minus six is four, therefore x must be equal to five since five plus five is ten

Answer:

4 sessions.

Step-by-step explanation:

He starts with 10 minutes practiced and has to finish his quota in 20 minute sessions, so we can represent that with the equation 90=20x+10. Then solve for x.

90=20x+10

Subtract 10

80=20x

Divide by 20

x=4

It would take 4 sessions.

Answer:

1 10 min session + x 20 min sessions = 90 min

10+20x=90

20x=80

x=4 sessions

Answer:

True

Step-by-step explanation:

(16³ - 8³)(4³ + 2³)

(4096 - 512)(64 + 8)
(3584)(72)

258048
To check if this statement is true, divide 258048 by 63:
258048/63 = 4096
Hope this helps :)

Answer:

Step-by-step explanation:

x³ + y³ = (x + y)(x² - xy + y²)

= (x + y)(x² + 2xy + y² - 3xy)

= (x + y)[(x + y)² - 3xy]

= 3(3² - 3(3)) = 3(0) = 0

Answer:

A.

Step-by-step explanation:

[tex]A\ meaningful\ function:\\ one\ vertical\ has\ just\ one\ point\ of\\ intersection.[/tex]

{Definition of functiuon graph}

I hope this helps you

:)

Answer:

sorry I need the points plss forgive meee

Answer:

Step-by-step explanation:

First, simplify the question.

8 1/2 - [ 3 1/6 ÷ 5 1/3 + 11-(3 - 5/4 - 5/8 }]

then solve

Answer:

(x - 8)² + (y - 4)² = 9

Step-by-step explanation:

(x - 8)² + (y - 4)² = 3²

(x - 8)² + (y - 4)² = 9

Answer:

61/2feet

Step-by-step explanation:

mark me brainliest!!

Answer:

32° + (x+9)° + (2x-8)° = 90°

32° + x + 9° + 2x - 8° = 90°

33° + 3x = 90°

3x = 90° - 33°

3x = 57°

x = 19°

angleCFD = 2×19 - 8

angle CFD = 30°

........

Answer:

They have 2 left

Step-by-step explanation:

3 2/3 - 2 1/2 = 1 1/1 = 2

Answer:

[tex]f(n) = \frac35 5^n[/tex]

Step-by-step explanation:

Let's assume the solution is of the form [tex]f(n) = \alpha k^n[/tex], where [tex]\alpha[/tex] is to be determined on the starting condition, and [tex]k \in \mathbb{R} \ne 0[/tex]

[tex]f(n+1) -5f(n) = 0\\\alpha k^{n+1} -5 \alpha k^n=0\\\alpha k^n (k-5) = 0 \rightarrow k= 5[/tex]

at this point we can use our starting condition to determine the value of [tex]\alpha[/tex]:

[tex]f(1)=3 \rightarrow \alpha 5^1 =3 \rightarrow \alpha =\frac 35[/tex]

Our solution is, thus [tex]f(n) = \frac35 5^n[/tex]

Answer:

Step-by-step explanation:

21=.5h(2+4)

21=.5h(6)

21=3h

/3  /3

7=h

21=.5(7)(6)

21=.5(42)

21=21

Answer:

24 people borrowed the books on Friday

Step-by-step explanation:

Every day, the number of books is being subtracted by 2.

56 - Monday (-8)

48 - Tuesday (-8)

40 - Wednesday (-8)

32 - Thursday (-8)

24- Friday

Answer:

I have answered this question already.

Step-by-step explanation:

Answer:

300

Step-by-step explanation:

A percentage is a unit of proportion that represents a ratio.

For this question let the unknown number be represented by the variable x. We know that 75 is 50% of x, or half of x. This means that we can find the unknown number by doubling 75.

This means that x is 150. Next, we need to find 200% of 150. 200% of any number is that number times 2. So, to find the final answer we must once again double 150.

So, the final answer is 300.

Answer:

Step-by-step explanation:

270

50% equals to 1/2 so 1/2x=75. Times 2 on both sides you get x=135.

So 135 is x and you multiply 135 by 200%. Which get you 270.

Answer:

-12

Step-by-step explanation:

[tex](3x⁴ -21x³+29x²-3x+28) ÷ (x−5)[/tex]

[tex]\\ 3x⁴ -21x³+29x²-3x+28 \\ x - 5\overline{)3x⁴ -21x³+29x²-3x+28} \\3x {}^{4} - 15x {}^{3} \: \: \: \ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \overline { - 6 {x}^{3 } + 29 {x}^{2} - 3x + 28 } \\ - 6 {x}^{3 } + 30 {x}^{2} \: \:\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \overline { - {x}^{2} - 3x + 28} \\ - {x}^{2} + 5x \: \: \: \: \: \: \: \: \: \\\overline { - \: \: \: 8x + 28} \\ \: \: \: \: \: 8x + 40 \\ - 12[/tex]

Answer:

18

Step-by-step explanation:

You should place the value of x which is 9 into the expression 2 x

2(9)=18

Answer:

Step-by-step explanation:

The answer is:

If x=9

2x= 2 times 9

2 times 9 is 18

Answer is 18

Answer:

Answer:

7+6=13 6+7=13 13-6=7 13-7=6 7+6=13 13=7+6 13-6=7 7=13-6b

Step-by-step explanation:

this involves any number that when subtracted or added it gives each other the values of the family

Example:-

7 + 6 equals 13, 13 - 6 equals 7,

so you see how they relate,

please mark me brainiest

^_^

the surface area of a sphere: 4πr²

22176 = 4πr²

r² = 22176/4π

r = 42 cm

Step-by-step explanation:

2 of the Constitution Constitution Constitution Sultanate Sultanate Flow 1

Answer:

it's 50

Step-by-step explanation:

I had the exact same question

Answer:

the answer is 50!

Step-by-step explanation:

Step-by-step explanation:

Let L = length and W = Width

The problem says L = 2W

and

Area = LW = 21

Substitute

2W2 = 21

W2 = 10.5

W = 3.24

L = 6.48