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3 years ago

Translate each verbal expression into an algebraic expression. "Three times the sum of a number and 8"

Mathematics

2 answers:

8090 [49]3 years ago

8 0

Answer: 3x+24

Step-by-step explanation:

3(x+8)=

3x+24

melamori03 [73]3 years ago

4 0

Yaaaa he got it right

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-BARSIC- [3]

I know the parabola will open downward because the leading coefficient of the equation, being -5, is negative/less than zero.

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4 years ago

The graph of quadratic function f has zeros of -8 and 4 and a maximum at (-2,18). What is the value of a in the function’s equat

Gennadij [26K]

<h2>Quadratic Function Equations</h2>

To find the equation of a parabola given the vertex and the zeroes, we can use the intercept form equation to help us:

$y=a(x-r)(x-s)$

r and s = intercepts/zeros of the graph

<h2>Solving the Question</h2>

We're given:

Zeros: -8, 4
Maximum: (-2, 18)

$y=a(x-r)(x-s)$

⇒ Plug in the given information:

$y=a(x-(-8))(x-4)\\18=a(-2-(-8))(-2-4)\\18=a(-2+8)(-2-4)\\18=a(6)(-6)\\18=a(-36)\\1=-2a\\\\a=-\dfrac{1}{2}$

<h2>Answer</h2>

$a=-\dfrac{1}{2}$

4 0

2 years ago

The fifth grade raised $182 by selling tickets for a car wash. If each ticker cost $3.25, how many tickets did the fifth grade s

dimaraw [331]

The fifth grade sold 56 tickets. You solve this by dividing 182/3.25

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3 years ago

Let f(x)=3x-7 and g(x)=2x². Perform the function operation and then find the domain of the result.

olya-2409 [2.1K]

Answer: A

Step-by-step explanation:

$f(x)=3x-7\\g(x)=2x^2$

$(f-g)(x)=3x-7-(2x^2)\\(f-g)(x)=3x-7-2x^2\\(f-g)(x)=-2x^2+3x-7$

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3 years ago

Prove that quadrilateral ABCD with the vertices A (2,1), B (1,3), C (-5,0) D (-4,-2) is a rectangle. Graph the rectangle and the

Furkat [3]

Answer:

Just find the distance of the vertices of the quadrilateral ( such as : AB, BC, CD DA )by using distance formula...

Then if opposite sides of quadrilateral is equal then it is rectangle .....

hope you understand...

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3 years ago