1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
inn [45]
3 years ago
6

Write an algebraic expression to represent the total number of silver dollar fish that could be in a 24 gallon tank. D=number of

silver dollar fish. the silver dollar fish is 8 inches long.
Mathematics
1 answer:
deff fn [24]3 years ago
8 0
D equals the number of silver dollar fish and there's eight of them. To write and algebraic expression means to put it in terms of D. D+8=24
You might be interested in
A parabola with the vertex at (1.5, 12.5) inscribes a segment of length 5 on x-axis. What is the area of the triangle formed by
damaskus [11]

Answer:

  20 units²

Step-by-step explanation:

The x-intercepts are symmetrically located around the x-coordinate of the vertex, so are at

  1.5 ± 5/2 = {-1, 4}

Using one of these we can find the unknown parameter "a" in the parabola's equation (in vertex form) ...

  0 = a(4 -1.5)² +12.5

  0 = 6.25a +12.5 . . . . . simplify

  0 = a +2 . . . . . . . . . . . divide by 6.25

  -2 = a

Then the standard-form equation of the parabola is ...

  y = -2(x -1.5)² +12.5 = -2(x² -3x +2.25) +12.5

  y = -2x² +6x +8

This tells us the y-intercept is 8. Then the relevant triangle has a base of 5 units and a height of 8. Its area is given by the formula ...

  A = (1/2)bh = (1/2)(5)(8) = 20 . . . . units²

5 0
3 years ago
Which of the sets of equations represent the two lines graphed?
Oksi-84 [34.3K]

Answer:

B) y = x + 2 and y = -x - 4

Step-by-step explanation:

Let the equation of a straight line with x-intercept 'a' and y-intercept 'b' be

\frac{x}{a}  +  \frac{y}{b}  = 1

The line with positive slope has x-intercept a=-2 and y-intercept b=2.

Its equation is:

\frac{x}{ - 2}  +  \frac{y}{2}  = 1

Multiply through by 2

- x + y = 2

Solve for y,

\boxed {y = x + 2}

For the line with a negative slope,

the x-intercept is a=-4 and the y-intercept is b=-4

Its equation is

\frac{x}{ - 4}  +  \frac{y}{ - 4}  = 1

Multiply through by -4

x + y =  - 4

Solve for y

\boxed {y =  - x - 4}

4 0
3 years ago
Simplify the following radical <br> Sqrt 126x^13
fenix001 [56]

Answer:

\large\boxed{\sqrt{126x^{13}}=3x^6\sqrt{14x}}

Step-by-step explanation:

Domain:\ x\geq0\\\\\sqrt{126x^{13}}=\sqrt{9\cdot14\cdot x^{12+1}}\\\\\text{use}\ a^n\cdot a^m=a^{n+m}\\\\=\sqrt{9\cdot14\cdot x^{12}\cdot x^1}=\sqrt{9\cdot14\cdot x^{6\cdot2}\cdot x}\\\\\text{use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\ \text{and}\ (a^n)^m=a^{nm}\\\\=\sqrt9\cdot\sqrt{14}\cdot\sqrt{(x^6)^2}\cdot\sqrt{x}\\\\\text{use}\ \sqrt{a^2}=a\ \text{for}\ a\geq0\\\\=3\cdot\sqrt{14}\cdot x^6\cdot\sqrt{x}=3x^6\sqrt{14x}

3 0
3 years ago
How much do 4 dozen buttons cost if they pay $18 for 144 buttons?
zzz [600]

Answer:

Step-by-step explanation:

.125 for 1 button

6 dollars for 48 buttons

7 0
3 years ago
Craig likes to collect records last year he had Tim records and his collection now he has 15 records what is the percent increas
Softa [21]

Answer:

50% I believe?

Step-by-step explanation:

7 0
2 years ago
Other questions:
  • Inez earns $160 per month by babysitting. She saves 25% of her monthly salary. If her salary increases by 10% how much will she
    6·2 answers
  • Para calcular la altura alcanzada por un proyectil en la tierra es suficiente conocer la velocidad de lanzamiento
    14·1 answer
  • What is the standard form of (1+2√-3/1+2√-3 ?
    11·1 answer
  • George earned a total of $342 in simple interest from two separate accounts. In an account earning 5% interest, George invested
    7·1 answer
  • Can someone help me out on this :P
    15·2 answers
  • I need help please?!!!!
    10·1 answer
  • Answer if you are right you will get brainiest Pls . Ps you get 20 points. I have a lot of work to do.
    13·1 answer
  • What is the measure of angle 4?
    7·1 answer
  • PLS HELP WILL GIVE BRAINLIEST!! Identify this set of lines as parallel, perpendicular, or neither.
    14·2 answers
  • Given the lines a and b are parallel and that m&lt;8=180, find
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!