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Strike441 [17]
2 years ago
12

14. What is the vertex of y=-3x2 + 6x +15?

Mathematics
1 answer:
Flura [38]2 years ago
5 0

Answer:

y=6x+21

Step-by-step explanation:

simply 3x2+6x+15

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Ganezh [65]

Answer: B

1 Newton with a force going right will remain

In D the object wont move

In A the object wont move

In C the object will move left

7 0
3 years ago
Explain why 4/10 and 40/100 have unlike denominators but are equivalent fractions
marishachu [46]
4/10 and 4/100 are the same because all you had to do was multiply both the numerator and denominator by 10. It is still the same amount. Hope this helps!
5 0
3 years ago
PLEASE ANSWER QUICK A manufacturing facility pays its employees an average wage of $4.50 an hour with a standard deviation of 50
evablogger [386]

Answer:

B.77.4%

Step-by-step explanation:

Mean wage (μ) = $4.50

Standard deviation (σ) = $0.50

For nay given salary X, the z-score is given by:

z=\frac{X-\mu}{\sigma}

For X = $3.75, the z-score is:

z=\frac{3.75-4.50}{0.50}\\z=-1.5

For X = $5.00, the z-score is:

z=\frac{5.00-4.50}{0.50}\\z=1

A z-score of -1.5 corresponds to the 6.68th percentile, while a score of 1 corresponds to the 84.13th percentile. Therefore, the percentage of workers getting paid between $3.75 and $5.00 an hour is:

P=84.13-6.68\\P=77.45\%

The answer is alternative B.77.4%

8 0
3 years ago
Three black beads, two red beads, and a yellow bead are arranged in a line. What is the probability that no black bead is adjace
shtirl [24]

Answer:

Probability of no black bead is adjacent to the yellow bead is = 0.966

Step-by-step explanation:

First to arrange all the beads without restrictions = 6! = 720

Probability the black bead is adjacent to Yellow bead = 4!/6! = 24 /720

= 0.0333

Probability of no black bead is adjacent to the yellow bead is

= 1- Probability the black bead is adjacent to Yellow bead

= 1-0.033

= 0.966

6 0
3 years ago
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Alekssandra [29.7K]

Answer:

A ................................

6 0
3 years ago
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