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Komok [63]
3 years ago
15

Which of the following functions is graphed below

Mathematics
1 answer:
tamaranim1 [39]3 years ago
7 0

Answer:

Option B: y=\left \{ {{x^2+6,x

Step-by-step explanation:

We can see that the first part of the piecewise function is a parabola with a y-intercept of (0,6) where the domain is restricted for all values of x less than 3 given the open circle at x=3.

The second part of the piecewise function is a linear function with a negative slope where the domain is restricted for all values of x greater than or equal to 3 given the closed circle at x=3.

Essentially, the piecewise function has a jump discontinuity at x=3 where the first part of the function goes to the second part of the function at one point by "jumping".

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Word phrase for algebraic expression 15-1.5/d
Bingel [31]

Answer: 1.5 less than 15 is divided by a number d.

Step-by-step explanation:

6 0
3 years ago
2x2 − 10x − 28 6x × 6 x − 7
Simora [160]

Answer:

no real solutions

Step-by-step explanation:

If equation is...

2x^2 - 10x - 28 = 6x(6x) - 7\\2x^2 - 10x - 28 = 6x^2 - 7\\0 = 4x^2 + 10x + 21\\4x^2 + 10x + 21 = 0

= no real solutions

7 0
3 years ago
The diameter of the base of the cone measures 8 units. The height measures 6 units. What is the volume of the cone?
Maslowich
V = \pir^2h/3

V = 3.14 x 4^2 x 6/3       (remember r is 1/2 of the diameter)
V = 3.14 x 16 x 2
V = 100.5
3 0
3 years ago
Read 2 more answers
Emily got a new job that guarantees her at 6% raise every year.If she started out making $25,000,How long will it be before she
Nadya [2.5K]

Hello from MrBillDoesMath!

Answer:  about 12 years ( approx 11.9 years)

Discussion:

Salary at ...

end of year 1:  25000 + (.06) * 25000

end of year 2:  (salary at end of year 1) +

                                 .06(salary at end of year 1) =

                       (25000 + (.06)*25000) +

                 .06 (25000 + (.06)*25000)  

           The bold faced terms are the same. Factor out the boldfaced term to

           get

                     (25000 + .06*25000) ( 1 + .06)

            Factor 25000 out to get

                    25000 * (1 + .06) * (1+ .06)

            The last two terms multiple out to give (1 + .06)^2

            so....

end of nth year salary is

           25000 * ( 1 + .06) ^n

To double her salary we need to find "n" such that

         50000 = 25000 ( 1.06) ^ n

Dividing both sides by 25000 gives

        2 = 1.06 ^n

Taking the logarithm of both sides gives:

log2 = n * log (1.06)   or

n = log2 / log(1/06)

This is approximately     0.3010 /  0.0253   or about 11.9 years.


Thank you,

MrB

3 0
3 years ago
Lydia received her salary on Friday. She spent one-half of her salary on rent and then spent $168 on her electric and water bill
MakcuM [25]

Answer:

  • B) $466

Step-by-step explanation:

Let the amount of rent is R

Calculate the value of R in reverse order of spending

  • R = (92 + 57)*2 + 168 = 466

Correct choice is B

5 0
2 years ago
Read 2 more answers
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