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3 years ago

Which of the following graphs could represent a cubic function?

Mathematics

1 answer:

xeze [42]3 years ago

8 0

Answer:

Step-by-step explanation:

Here, we want to select which of the graph represents a cubic equation

Graphs B and C looks parabolic and thus, they probably will represent a quadratic equation

Graph D represents a straight line equation

Graph A represents a cubic function due to its shape

So our answer is graph A only

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at Greta's school 35% of the students got a flu shot. If 125 of the students took the flu shot, how many students were at Greta'

slamgirl [31]

Answer:

357

Step-by-step explanation:

7 0

3 years ago

Solve each system of equations; nonlinear algebra 2<br><br> x2 + x + y - 26 = 0<br> x + y = 1

BigorU [14]

Answer:

(5,-4) and (-5,6)

Step-by-step explanation:

Given:

$\left\{\begin{array}{l}x^2+x+y-26=0\\ \\x+y=1\end{array}\right.$

Solve it. First, express y in terms of x from the second equation:

$y=1-x$

Substitute it into the first equation:

$x^2+x+1-x-26=0\\ \\x^2-25=0\\ \\(x-5)(x+5)=0$

Apply zero product property:

$x-5=0\ \text{or}\ x+5=0$

So,

$x=5\ \text{or}\ x=-5$

When $x=5,$ then $y=1-5=-4$

When $x=-5,$ then $y=1-(-5)=6$

We get two solutions: (5,-4) and (-5,6)

8 0

3 years ago

A video store charges the same fee each day a video is returned late. Craig returned a video 4 days late and paid a $3 fee. Writ

vova2212 [387]

Answer:

$5.25 if returned 7 days late

Step-by-step explanation:

So we know that 4 days late is 3 dollars

We can find the unit rate

3/4 is 0.75

So 75 cents for every late day

Now we just multiply that by 7

0.75*7=5.25

so 7 days, 5.25

**porportional relationship equation**

$\frac{3dollars}{4 days}$ = $\frac{X}{7 days}$

Now cross multiply

21=4x

x=5.25

Same results

4 0

3 years ago

Read 2 more answers

John builds a square dog pen that has an area of 81 square feet. He then builds a

Fiesta28 [93]

Answer:

21.0%

Step-by-step explanation:

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3 years ago

What is 7k - 1.2=-19.8

mart [117]

1) Add 1.2 to both sides

7k=21

2) Divide 7 on both sides.

k=3

Your answer is 3.

3 0

3 years ago