what is -18x + 9x – 21 + 3 = -99

Answers

Answer 1

Answer:

X = 9

Step-by-step explanation:


Related Questions

What is the value of x in the figure? Enter your answer in the box.

Answers

hold on give me a second i got this

Answer:

X = 65

Step-by-step explanation:

2(65) + 15 = 145

ur welcome

In the coordinate graph shown, the x-axis and y-axis have different scales. Which statement below is NOT correct?
A. On the x-axis, 1 tick mark represents 0.5 unit
B. On the y-axis, 1 tick mark represents 0.4 unit
C. The length of the red segment is 3 units
D. The length of the blue segment is 4 units

Answers

Answer:

The correct answer is B: On the y-axis, 1 tick mark represents 0.4 unit.

write the equation of an exponential function that passes through the points (2,48) and (5,750).

Answers

Ok, so the function form is y = a * bx.
Substitute in the values:
750 = a * b5
and
48 = a * b2
Then divide the two equations:
750/ 48 = (a * b5) / (a * b2)
So:
15.625 = b3
Take the cube root of both sides:
2.5 = b
Now, substitue b into one of the equations (the one with 48 has smaller numbers and is easier to work with.)
48 = a * 2.52
Simplify.
48 = a * 6.25
Divide both sides by 6.25
7.68 = a
Now substitute in a and b to write the exponential function:
y = 7.68 * 2.5x

The equation of an exponential function will be y = 7.68 × 2.5ˣ.

What is equation of line?

The equation of line with slope m and passes through the point (x₁, y₁) is calculated as;

y - y₁ = m (x - x₁)

Given that;

An exponential function passes through the points (2, 48) and (5, 750).

Now, The exponential function is;

y = abˣ

Where, a and b are unknowns.

Hence, For the point (2, 48), we get the equation;

48 = ab² .. (i)

And, For the point (5, 750), we get;

750 = ab⁵   .... (ii)

Solve the equation (i) for value of a, we get;

48 = ab²

a = 48/b²

Substitute in equation (ii);

750 = ab⁵

750 = (48/b²) b⁵

750 = 48 b³

b³ = 750/48

Take cube root both side;

b = 5/2

Hence, a = 48/b² = 48/(5/2)²

a = 48 × 4 / 25

a = 7.68

Thus, After substitute the value of a and b we get the exponential equation as;

y = 7.68 × 2.5ˣ

Therefore, The equation of an exponential function will be,

⇒ y = 7.68 × 2.5ˣ.

Learn more about the exponential function visit:

https://brainly.com/question/26039564

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Solve for x:
3x^5= 81

Answers

Answer:

The answer is x = 5 square root of 27

Step-by-step explanation:

3x^5 = 81

3x^5 / 3 = 81 / 3

x^5 = 27

So the answer is x = 5 square root of 27

YOU GOT A FISH TANK FOR YOUR BIRTHDAY. BEFORE YOU HEAD OFF TO THE PET STORE TO BUY SOME FISH TO FILL YOUR TANK, YOU WANT TO CALCULATE THE TANK'S VOLUME. THE FISH TANK IS A RECTANGULAR PRISM WITH A HEIGHT OF 8 CM, A WIDTH OF 7CM, AND A LENGTH OF 15 CM. WHAT IS THE VOLUME OF THE FISH TANK?

Answers

Answer:

Volume of the fish tank = 840 cm³

Step-by-step explanation:

Given:

Length of rectangular prism tank = 15 cm

Height of rectangular prism tank = 8 cm

Width of rectangular prism tank = 7 cm

Volume of the rectangular prism tank = Length × Width × Height

V = 15 × 7 × 8

V = 840 cm³

Volume of the fish tank = 840 cm³

Find the surface area of the rectangular prism.
2 cm
5 cm
10 cm

Answers

Answer:

2(2x5) + 4(5x10)

2(10) + 4(50)

20 + 200

220 cm. is your answer

Answer:

Step-by-step explanation:

2×5×10= 900

ASAP!!! PLEASE HELP ILL GIVE U BRAINEST!
Find the LENGTH of Arc AB.

Answers

HERE I FOUND IT

Find the LENGTH of Arc AB.

The length of a rectangle is 2/3 units. The width is 5/6 units. What is the area of the rectangle?

Answers

Answer: The length is 0

Step-by-step explanation:

Answer: 5/9

Decimal form: 0.555.......

Step-by-step explanation:

Area = length • width

is it yes or no please!

Answers

Answer:

Yes

Step-by-step explanation:

the sign is a less then or equal to sign therefore, p is less then or equal to seven so anything seven and below is possible.

Taylor had a bag of 28 marbles. 5 red, 9 blue, 8 yellow, and 6 black. If Taylor pulled out a yellow one and DID NOT put it back in. What is the
probability of pulling out a blue marble (SIMPLIFY YOUR FRACTION).
Blank 1:
Blank 2:

Answers

Answer: 1/3

Step-by-step explanation:

Number of red marbles = 5

Number of blue marbles = 9

Number of yellow marbles = 8

Number of and black marbles = 6

Total number of marbles = 28

If Taylor pulled out a yellow one and didn't replce it, there'll be 27 marbles left since one has been removed, then the probability of picking blue marbles will be:

= Number of blue marbles / Total marbles

= 9 / 27

= 1/3

The probability of picking a blue marble is 1/3.

Which of these expressions is equivalent to −2(x−5) ?

Multiple choice question.

A)
−2x−5


B)
−2x+5


C)
−2x+10


D)
−2x−10
Plzs Help I give someone a brainliest

Answers

Answer:

C.

Step-by-step explanation:

-2(x - 5)

= -2*x - 2*-5

= -2x + 10.

use the graph to answer these questions. what is the slope and y-intercept?

Answers

slope: -1/4

y-int: -1

y=(-1/4)x-1

f(x)= 3x - 5x + 2x – 3

Answers

There is no x-intercept/zero

What is the length of the arc by a central angle of 85 degrees and a radius of 8cm to the nearest tenth of a cm?

Answers

Answer:

11.86824cm

Step-by-step explanation:

Answer:

11.86824cm

Step-by-step explanation:

please help , thank you!

Answers

Answer:

1/1

Step-by-step explanation:

x1 subtracted by x2

in this case 3-2=1

Then y1 subtracted by y2

5-4=1

y will be put over x in fraction form

Answer:1/1

Answer:

mark her as brainliest

Step-by-step explanation:

Some one help me please I’m struggling with 1-2 how do I work it out

Answers

To find volume do bxh =V

Which number is rational?

Answers

Answer:

root 16

Step-by-step explanation:

Answer:

2nd

Step-by-step explanation:

I hope it helps.stay learning

Evaluate the expression 2x + 5 when x = 4

Answers

Answer:

= 2(4) + 5

= 8 + 5

= 13

Answer:

x= 4 /7

Step-by-step explanation:

The dimensions of the rectangular prism shown are given in centimeters. 4cm, 3cm ,1.4cm What is the volume of the rectangular prism in cubic centimeters?

Answers

Answer

V = 16.8

Step-by-step explanation:

Answer: V- 16.8  

Explanation: From K12

I HATE IT

A number decreased by 9 is 12. Which equation represents this situation?

Answers

Answer:

x - 9 = 12

Step-by-step explanation:

We can use x as "a number"

So the equation so far is just "a number", or x.

Decreased by 9 can also be said as subtracted by 9, so that makes the equation x - 9.

"is 12" can also be said as equals 12, which makes the equation x - 9 = 12

Answer:

_ - 9 = 12

Step-by-step explanation:

You can identify the starting number by adding 9 and 12 together to get 21. The completed equation would be 21 - 9 = 12.

For witch of the following inequalities shown below is x=2 solution? Select all that apply.

Answers

Answer:

z=x so x=all answer ALL

Step-by-step explanation:

Which of the following words/phrases does not belong? rate of change, y-intercept,slope, change in y/change in x HURRY ILL GIVE BRAINLEST

Answers

Answer

rate of Change is the odd one I think

I NEED HELP!!!

Find the area of this figure

Answers

Answer:

265 yd squared

Step-by-step explanation:

We can solve this problem by taking the little triangle on the left side and moving it to the right to get a rectangle, and from there we can find the area like its a rectangle

21.2*12.5=265

Kendra is planning to ride her bicycle on a popular biking path that is 54 miles long. She plans to average 9 miles per hour. To find about how long the trip will take, solve the distance formula d = it for t. Then substitute to find the time it will take her for the trip.

Answers

Answer:

It will take 6 hours to complete the biking path.

What is the equation used to find the nth term of the arithmetic sequence:
-8, -5 -2, 1, 4

Answers

Answer:

        aₙ = 3n - 11

Step-by-step explanation:

The equation of the nth term of the arithmetic sequence is: [tex]a_n =a_1+d(n-1)[/tex]

d = -5 - (-8) = - 5 + 8 = 3

a₁ = -8

Therefore:

               [tex]a_n =-8+3(n-1)\\\\a_n =-8+3n-3\\\\a_n =3n-11[/tex]

the slope of the line below is -3. use the coordinates of the labeled point to find a point-slope equation of the line (5,-7)

a. y-7=3(x+5)
b. y-7=-3(x+5)
c. y+7=-3(x-5)
d. y+7=3(x-5)

Answers

I would say c but it might not be correct

Answer: C. y+7=-3(x-5)

15 m
4 m
4 m
160°
5 m
Find the area of the figure. Round your answer to the nearest tenth.

Answers

Answer:

17.3

Step-by-step explanation:

[tex](2 \sqrt{3}) \times 5 = 17.3[/tex]


The equation g=3r represents how much Trevin makes per hour at his job. What is the unit rate?​

Answers

Answer:

Hope It Help

Brainliest please

Answer:

3

Step-by-step explanation:

The unit rate is a rate with 1 in the denominator. The unit rate for this equation would be how much money he makes in one hour. So, to find the unit rate plugin 1 for r and solve for g. One times three (1*3) is equal to 3; therefore, that is the unit rate.

what is the volume of the prism below?

Answers

Answer: A, 120 units cubed

Step-by-step explanation:

Formula = (H*W*L)/2

4 * 3 * 20 = 4 * 60 = 240

240 / 2 = 120

find the sum of 3x,(1-6x),4x and x​

Answers

Answer:

2x+1

Step-by-step explanation:

S=3x+(1-6x)+4x+x​=3x-6x+4x+x+1=2x+1

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