WHAT VALUES(S) OF X WILL MAKE X^2=81 TRUE

A. 9

B. 9 AND -9

C. 40.5 AND -40.5

D.3

Answer:

37/100 = 0.37 (the first one)

Step-by-step explanation:

a percentage is out of 100.

If you divide 37 by 100, you get 0.37

Answer:

37%=0.37=37/100

Step-by-step explanation:

Convert the percentage to an equivalent decimal number by placing the percentage sign with x1/100. The decimal equivalent to the percentage by moving the decimal 2 places to the left from the convert postion.

Answer:

x = -3

Step-by-step explanation:

Given expression is,

[tex]\frac{2}{x}- \frac{4x}{2x-3}=-2[/tex]

[tex]\frac{2(2x-3)}{x(2x-3)}-\frac{4x(x)}{x(2x-3)}=-2[/tex]

[tex]\frac{2(2x-3)-4x^{2} }{x(2x-3)}=-2[/tex]

(4x - 6) - 4x² = -2x(2x - 3)

4x - 6 - 4x² = -4x² + 6x

4x - 6 = 6x

6x - 4x = -6

2x = -6

x = -3

Answer:

3/16 gallon

Step-by-step explanation:

From the given information in the question, we want to get the number of gallons of apple juice contained in the mixture

From the question, we are told this is 3/16 gallon

So the number of gallons of apple juice contained in the mixture is 3/16

Answer:50/100

Step-by-step explanation: 50/100 simplifies into 5/10, meaning they equal each other. 50 is half of 100, and 5 is half of 10.

Answer:

C is the correct answer I might get this wrong and if so sorry.

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

I did the Plato test

Answer: 4

Step-by-step explanation: |−6|−|2|

=6−|2|

=6−2

=4

Answer:

3

Step-by-step explanation:

2916=4w^6

or,54^2=(2w^3)^2

or,54=2w^3

or,54/2=w^3

or,27=w^3

or,3√27=w

or,3√3^3=w

or,w=3 answer

Answer:

1.9 1.904 1.94 2.8 pretty ez :DDDDD

Answer:

The value of x is 26.

Step-by-step explanation:

In a triangle, the total angles is 180°. In order to find the value of x, you have to add up all the angles in terms of x and make it equals to 180°

2x + 3x + 50 = 180

5x + 50 = 180

5x = 180 - 50

5x = 130

x = 130 ÷ 5

x = 26

As we know that,

Sum of all angles of triangle = 180°

Given,

Angles are 2x , 3x and 50°

Now,

[tex] \rightarrow \: 2x + 3x + 50 = 180[/tex]

When plus sign goes to another side then,it become minus.

[tex] \rightarrow \: 5x = 180 - 50[/tex]

[tex] \rightarrow \: 5x = 130[/tex]

[tex] \rightarrow \: x = \cancel \dfrac{130}{5} [/tex]

[tex] \rightarrow \: x = 26[/tex]

Hence,the value of x is 26°.

Answer:

K = 2y + 4

Step-by-step explanation:

Let K = Keith

The expression that can be used to find Keith's age will be K = 2y + 4.

An equation is a statement that two expressions, which include variables and/or numbers, are equal. In essence, equations are questions, and efforts to systematically find solutions to these questions have been the driving forces behind the creation of mathematics.

It given that, Keith is 4 years older than twice sheila's age. Sheila is y years old.

Suppose the age of Keith is shown by K and Sheila is y years old.

Expression is the combination of constants and variables with mathematical operators.

The expression can be used to find Keith's age is obtained as,

K = 2y + 4.

Thus, the expression that can be used to find Keith's age will be K = 2y + 4.

Learn more about the equation here,

https://brainly.com/question/10413253

#SPJ5

Answer:

107.18

Step-by-step explanation:

To find the number, divide 103 by 0.961

103/0.961

= 107.180020812 or approximately 107.18

So, the answer is 107.18

It should be 125 as

BC=100

and it's four times the length of AB then

100/4=25

then 100+25=125

I hope this helps

Answer:

£84.5

Step-by-step explanation:

Given ratio = 2:5:6

Amount that Louis got from the total amount = £39

Step 1: Add the ratio together

2+5+6=13

Step 2: covert the given ratio into fraction

George ratio=2/13

Charlotte ratio=5/13

Louis ratio= 6/13

✓LET THE AMOUNT THAT WAS SHARED AMONG THEM= Y

But we know that Louis got £39, then we can compute How much did they shared using "Louiz" shrare as

Louis ratio= 6/13 × Y= £39

= 6Y/13 = 39

Cross multiply

13×39= 6Y

507= 6Y

Y= 84.5

Hence, the amount they shared was £84.5

Answer:

x=109

Step-by-step explanation:

The angles inside of a triangle all add up to 180 degrees. So:

23+48+x=180

Simplify Like-Terms:

71+x=180

Subtract 71 from both sides:

x=109

Answer: its C i got it right :)

Answer:

complet the squares

(x^2+14x)+(y^2+12y)=-60

add negative and positive 1/2 of linear coefs inside parenthaees

14/2=7, 7^2=49

12/2=6, 6^2=36

(x^2+14x+49-49)+(y^2+12x+36-36)=-60

factor perfect square

((x+7)^2-49)+((y+6)^2-36)=-60

get rid of parnthaeses

(x+7)^2-49+(y+6)^2-36=-60

(x+7)^2+(y+6)^2-85=-60

add 85 to both sides

(x+7)^2+(y+6)^2=25

B is answer

Step-by-step explanation:

Answer:

A. 200

B. Growth

C. 118%

Step-by-step explanation:

Answer:

Initial population size=200

The function represents a growth

Step-by-step explanation:

Equation to calculate population size after time, t

P(t) = 200(1.18)^t

To find initial population size we will take t = 0

P(0) = 200(1.18)^0

      = 200(1)

      = 200

To find that function represent growth or decay

P(1) = 200(1.18)^1

     = 200(1.18)

     = 236

Its means that after a year population increases. Hence, function represent growth.

By what percentage does the population change each year?

(236 - 200 / 200) * 100%

= 235%

a + b

0 + (-20)

= -20

Step-by-step explanation:

a + b = ?

a = 0 and b = -20

0 + (-20)

= -20

The expression that represents Cindy's profit is $3.5b - $128.09.

Cindy's total profit is $30.82.

Profit is total revenue less total cost. Total revenue is the selling price per unit multiplied by the total units sold.

Profit = total revenue - total cost

($3.50b) - ($65.25 + $62.84)

$3.5b - $128.09

Profit for the first day = $3.5(24 + 15)  - $128.09

= ($3.5 x 39) - $128.09

= $136.50 - $128.09

=$8.41

Profit for the next day = $3.5(26 + 17)  - $128.09

= ($3.5 x 43) - $128.09

= $150.50 - $128.09

= $22.41

Total profit = $22.41 + $8.41 = $30.82

To learn more about profit, please check: https://brainly.com/question/26181966

Answer:

12

Step-by-step explanation:

Go SUB TO MY YT CHANNEL Florida_kik For a brainly !!!!!!!

Answer:

x=1,-9

Step-by-step explanation:

Move all terms to the left side of the equation and simplify.

Tap for more steps...

x

2

+

8

x

−

9

=

0

Use the quadratic formula to find the solutions.

−

b

±

√

b

2

−

4

(

a

c

)

2

a

Substitute the values

a

=

1

,

b

=

8

, and

c

=

−

9

into the quadratic formula and solve for

x

.

−

8

±

√

8

2

−

4

⋅

(

1

⋅

−

9

)

2

⋅

1

Simplify.

Tap for more steps...

x

=

−

4

±

5

The final answer is the combination of both solutions.

x

=

1

,

−

9

Answer:

A

Step-by-step explanation:

As the graphs goes really far to the left or really far to the right you can see that the Y value is only going up

Answer:

f(x)= -2|x-3|-1

(Hi Simran! I just wanted to help you with this question though it might be wrong)

Step-by-step explanation:

f(x) = a|x-h|+k

f(x)= a|x-3|-1

-7 = a |0-3| -1

-7 = a |-3| -1 <-- add to -7

-6 = a |-3|

-6 = 3a

-6/3 = a

-2 = a

-------------------------------------------------------------------------------------

The equation of the absolute value is f(x)= -2|x-3|-1

Answer:

The answer is16.25

Step-by-step explanation:

16 + 0.25 = 16.25

Answer:

Answer: -17

Step-by-step explanation:

1 ) x² - y2

2 ) -4² - .5(2)

3 ) -16 - 1

4 ) -17

Answer: The answer is B

Step-by-step explanation:

Because it says its roaring like a freight train meaning it is loud and powerful like a train.

Answer:

Positive, Positive

Step-by-step explanation:

The only variable is an absolute value which means that as x approaches infinity it can only get bigger and bigger