How do u do this?
pic is under

Answer:

19. - 3

20. -7

Step-by-step explanation:

I think

x = - (b/2a)

= -(24/8)

= - 3

and the value or c is -7 not 7

CMIIW

Answer:

D. y= 1/2 · 4^x

Step-by-step explanation:

Step-by-step explanation:

Expression = x + 2x + 7 + 3x + 1

Simplication

x + 2x + 7 + 3x + 1

6x + 8

Answer:

144

Step by step explanation ;

Area of square is S×S

side X×X=9

X equals 3

4×3=12

12×12=144

The area of a square of side 4x will be 36 square units.

A square is a four-sided polygon, whose all sides are equal in length and whose opposite sides are parallel to each other.

Also, each vertex of the square has an angle equal to 90 degrees.

The area of the figure is the product of the length of the side.

Area of square = Side × Side

The area of a square with side x is 9. Then the area will be

Area = 4x

Area = 9 × 4

Area = 36

The area of a square of side 4x will be 36 square units.

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Answer:

B. –48

Step-by-step explanation:

Answer:y=-48

Step-by-step explanation:

4*(2*-6)=-48

Answer:

The correct answer is y= 1/16

Step-by-step explanation:

2^-6 is 1/64 multiplied by 4 is 1/16

Substitute the value of the variable into the expression and simplify.

( − 6 , − 48 )

Answer:

-4 Is the answer I think hope it will help u

Step-by-step explanation:

Since all side lengths of smaller squares are equal, we have

[tex]3x+4=4x-1[/tex]

[tex]x=5[/tex]

Since length of AB is twice of the side length of smaller squares,

[tex]\bar{AB}=2(3x+4)=2(3\cdot5+4)=38[/tex]

Answer:

AB=38

SEE THE IMAGE FOR SOLUTION

There are 11 3/7 pieces of rope which can cut from the rope.

What is Division method?

Division method is used to distributing a group of things into equal parts.

Given that;

Total length of rope = 20 yards

One piece = 1 3/4 = 7/4 yard

Now, Number of pieces of rope = 20 ÷ 7/4

                                                  = 80/7

                                                  = 11.43

                                                  = 11 and 3/7 pieces.

Thus, There are 11 3/7 pieces of rope which can cut from the rope.

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z° = 25°+90°

=115°.............

Answer:

11x+3+8x+6=180(Linear pair)

19x+9=180

19x=171

x=9°

Answer:

around 266.188

Step-by-step explanation:

so first find the circumference of the circle, which is 2 x pi x radius

after that, multiply your circumference by the height to find the curved surface area

now find the surface aread of the base and the top, which is just 2 x pi x radius x radius

Answer:

5 5/7

Step-by-step explanation:

Answer:

G.$3.15

Step-by-step explanation:

Step 1-

The estimate for the given situation for the amount is $35, the sales tax of the stuffed elephant is:

=35 x 0.09 -  Multiply by the decimal 9%

=$3.15 - Multiply the values

Result- G.$3.15

Answer:

[tex]$x=\frac{-1}{5},[/tex]

[tex]y=\frac{2}{5},[/tex]

[tex]z=3$[/tex]

Step-by-step explanation:

Given system of equations in the form of the matrix shown below,

[tex]$A=\left[\begin{array}{ccc}1 & -2 & 0 \\ 1 & 3 & 5 \\ 1 & -1 & -1\end{array}\right] \quad B=\left[\begin{array}{c}4 \\ -1 \\ 3\end{array}\right]$[/tex]

[tex]$\left[\begin{array}{ccc}1 & -2 & 0 \\ 1 & 3 & 5 \\ 1 & -1 & -1\end{array}\right]\left[\begin{array}{l}x \\ y \\ z\end{array}\right]=\left[\begin{array}{c}4 \\ -1 \\ 3\end{array}\right]$[/tex]

[tex]$\left[\begin{array}{l}x \\ y \\ z\end{array}\right]=\frac{1}{-10}\left[\begin{array}{ccc}2 & -6 & -4 \\ -2 & -1 & 1 \\ -10 & 5 & 5\end{array}\right]\left[\begin{array}{c}4 \\ -1 \\ 3\end{array}\right]$[/tex]

[tex]$\left[\begin{array}{l}x \\ y \\ z\end{array}\right]=\frac{1}{-10}\left[\begin{array}{c}8+6-12 \\ -8+1+3 \\ -40-5+15\end{array}\right]$[/tex]

[tex]$\left[\begin{array}{l}x \\ y \\ z\end{array}\right]=\frac{1}{-10}\left[\begin{array}{c}2 \\ -4 \\ -30\end{array}\right]$[/tex]

[tex]$\left[\begin{array}{l}x \\ y \\ z\end{array}\right]=\left[\begin{array}{l}\frac{2}{-10} \\ \frac{-4}{-10} \\ \frac{-30}{-10}\end{array}\right]$[/tex]

[tex]$\left[\begin{array}{l}x \\ y \\ z\end{array}\right]=\left[\begin{array}{c}-1 / 5 \\ 2 / 5 \\ 3\end{array}\right]$[/tex]

Learn more about matrix refer:

Answer:

22

every term is being added by 6

-2 + 6 = 4

4 + 6 = 10

10 + 6 = 16

16 + 6 = 22

Step-by-step explanation:

Answer:

-8 +6n

Step-by-step explanation:

Explicit rule:

[tex]a_{1} = -2[/tex]

d = Common difference = term 2 - term 1

                                 = 4 -(-2) = 4 + 2 = 6

[tex]a_{n}=a_{1}+d*(n-1)\\\\a_{n}=-2 + 6*(n-1)\\\\a_{n}= -2 +6n - 6\\\\\\[/tex]

   = -2 - 6 + 6n

   = -8 + 6n

Answer:

3 have only been in ballet

Step-by-step explanation:

If

5 have been in ballet

9 have been in play

2 have been in both ballet and a play

Then

3 have only been in ballet

7 have only been in a play

Answer:

4 students

Step-by-step explanation:

add 2 + 5 = 7

add 9 + 2 = 11

subtract 11 - 7 = 4

there was 2 students added to the 5 students, there was 2 students added to the 9 students/ Sorry if incorrect, i worked it out 4 times.

Answer:

-3+4=1

Step-by-step explanation:

Start with whichever arrow starts from 0

Answer:

$y=(7/2)x+20$

Step-by-step explanation:

SInce the gradient of the first line is $-2/7$ then the gradien of the perpendicular line is $7/2$.

Therefore by the point slope formula the line that we are looking for is

$y-6=(7/2)(x+4)$

$y=(7/2)x + 20$

Answer:

algebraic expressions

Answer: $535

Step-by-step explanation

He will be able to buy the refrigerator with the amount he deposited ($500) plus the interest generated from it ($35)(which we get by doing the following):

So the formula for interest is

Interest = (principal ×interest rate × time for which the money was deposited) / 100

Interest = ?

Principal = $500

Interest rate = 7%

Time = 1 year

Now

Interest = (500 × 7 × 1) / 100

Interest = 3500/ 100

Interest = $35

So the refrigerater's cost = 500 + 35

Cost = $ 535

Answer:

6

Step-by-step explanation:

Answer:

Step-by-step explanation:

Domain means what is the lowest value of x on the graph and what is the highest. Our graph begins at an x value of -5 (but -5 is not included because the dot is not filled in) and goes all the way up to 2 (but 2 is not included either since the dot is not filled in. Therefore, the domain is

D = {x | x ∈ R, -5 < x < 2}

which means that the domain is in the set of real numbers that begin at -5 and end at 2, neither included.

Choice F is the one you want.

Answer:

Step-by-step explanation:

[tex]f(1)=2/3\\f(2)=f(1)\times (3/2)=(2/3)\times(3/2)=1\\f(3)=f(2)\times (3/2) = 1\times (3/2) = 3/2\\f(4)=f(3)\times (3/2) = (3/2)\times (3/2) = 9/4\\f(5)=(f(4)\times (3/2) = (9/4)\times (3/2) = 27/8[/tex]

So the first five terms are 2/3, 1, 3/2, 9/4, 27/8.

The first five terms are 2/3, 1, 3/2, 9/4, and 27/8 if the  f(1)=2/3, and f(n) = f(n -1)×(3/2); for n ≥ 2.

It is defined as the systematic way of representing the data that follows a certain rule of arithmetic.

Divergent sequences are those in which the terms never stabilize; instead, they constantly increase or decrease as n approaches infinity, approaching either infinity or -infinity.

It is given that:

f(1)=2/3,

f(n) = f(n -1)×(3/2); for n ≥ 2

Plug n = 2

f(2) = f(2 -1)×(3/2)

f(2) = f(1)×(3/2)

f(2) = (2/3)(3/2)

f(2) = 1

Similarly;

f(3) = 3/2

f(4) = 94/

f(5) = 27/8

The first five terms are 2/3, 1, 3/2, 9/4, and 27/8.

Thus, the first five terms are 2/3, 1, 3/2, 9/4, and 27/8 if the  f(1)=2/3, and f(n) = f(n -1)×(3/2); for n ≥ 2.

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Answer:

GCF is 8

32x - 24 = 8(4x - 3)

Step-by-step explanation:

Answer:

90.

Step-by-step explanation:

7m - 3 = 53

m would be 8 because 56 - 3 = 53.

11m + 2 equals 90 because 11 times 8 (8 is m) is 88, which added by two is 90.

Answer:

a rotation of 180° about the origin

Answer:

We would make $299 in 13 hours.

Step-by-step explanation:

Hi there!

We're given:

⇒ We make $391 in 17 hours

To find how much we make in 13 hours, we must first find how much we make in 1 hour. Divide $391 by 17 hours:

391 ÷ 17 = 23

Therefore, we make $23 in 1 hour.

Multiply $23 by 13 hours to find how much we would make in 13 hours:

23 × 13 = 299

Therefore, we would make $299 in 13 hours.

I hope this helps!

Answer:

4x+1 =6x-13

6x-4x=13+1

2x=14

x=14/2

x=7

Step-by-step explanation:

the answer will be 7

hence proved

Answer:

x = -2/7 or

x = 6/7

Step-by-step explanation:

|7x-2| + 3 = -1  subtract 3 from both sides

|7x-2| = -4 now there are two probabilities

7x-2 = -4 or

7x-2 = 4 if first probability the value of x would be:

7x-2 = -4 add 2 to both sides

7x = -2 divide both sides by 7

x = -2/7 for the second probability the value of x would be:

7x-2 = 4 add 2 to both sides

7x = 6 divide both sides by 7

x = 6/7

Answer:

-17

Step-by-step explanation:

First, let's see what the value of w is, by solving -5w - 5 = 5.

-5w - 5 = 5            Add 5 on both sides.

-5w = 10                Divide -5 on both sides.

w = -2

Now, we know that w is equal to -2, let's plug it in to find the value.

9(-2) + 1                 Distribute.

-18 + 1                    Add.

-17