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ELEN [110]
2 years ago
6

What is the domain of the function y=3\sqrt(6x+42)

Mathematics
1 answer:
anzhelika [568]2 years ago
4 0
(-infinity sign,-7) (-7, infinity sign)
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Caroline bought movie tickets for three Children and a bucket of popcorn for $9.50. If she spent a total of $35.75, how much was
meriva

Answer:

$8.08

Step-by-step explanation:

First subtract 9.50 from 35.75 to get

24.25

Then divide 24.25 by 3 to get

Approx $8.08

7 0
3 years ago
recycled cds incorporated, offers a choice of 5 used cds for $26, with each additional cd costing $4. write a cost function for
Luda [366]
If $26 represents the cost of  the 5 used CDs, than your formula would be "26+4x" ,x being the amount of extra CDs you purchase.


The number CDs minus 5 is our x value, because the first 5 are the used CDs bundled into the $26 group.

26+4(6-5)
26+4(1)
26+4
30

6 CDs would cost $30
3 0
3 years ago
Cherry Avenue Park is in the shape of a rectangle. What is the area, in square
wlad13 [49]

Answer: a rectangles area is length x width. You need to find the numbers that represent the length and the width and multiply them

Step-by-step explanation:

7 0
2 years ago
What value is true of x makes this equation true 0.7x-5=0.2x+1
Sever21 [200]

Answer:

x=12

Step-by-step explanation:

First you make sure x is on both sides of the equation. So you do 0.7x-5-0.2x=0.2x+1-0.2x. Which just simplifies to 0.5x-5=1. You make sure x is the only thing on that side of the equation so you do 0.5x-5+5=1+5 which simplifies to 0.5x=6. Multiply the equation times 2 to just have x. x=12. The value that makes true of x is 12.

7 0
3 years ago
Use the discriminant to determine the nature of the roots of the following equation.
kvv77 [185]

Discussion

The discriminate is b^2 - 4*a*c

The general equation for a quadratic is ax^2 + bx + c

In this equation's case

a = 1

b= -5

c = - 3

Solve

(-5)^2 - 4*(1)*(-3)

25 - (-12)

25 + 12

37

Note

Since the discriminate is > 0, the roots are real and different. The roots do exist and there are 2 of them.

4 0
2 years ago
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