1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Zigmanuir [339]
3 years ago
8

Because of a problem in the program, the timer in a video player did not begin counting until the video had been playing for sev

eral seconds. The player began counting at 0 seconds, even though the video had already played 190 frames. The video plays 25 frames per second.
How many frames had the video already played when the time was equal to -3 2/5?
Mathematics
1 answer:
stich3 [128]3 years ago
5 0

Answer:

105

Step-by-step explanation:

t = 0

frame = 190

so it means, the video has 190 before the timer start counting

speed 25 fps

-------

t = -3 2/5 s = -17/5 s

frame = ?

with the rate of 25 fps

it gain 25 x -17/5 = 85 frame.

so the video at that time has already played

190-85 = 105 frame

You might be interested in
A worker at a cabinet shop is cutting out pieces of wood for a dresser. He needs pieces that are 4 1/4inches long. Each saw cut
ella [17]

Answer: he will be able to make 19 full pieces

Step-by-step explanation:

1. Start off by making 7 feet into 84 inches so the measurements can match.

2. Add 4/14 inches and the 1/8 a inch together so you know how much is being taken off 84 inches. The amount will be 35/8 inches.

3. Divide 84 inches by 35/8 inches = 19 1/5

4. The whole number of the answer will be how many boards you can make from the board.

8 0
3 years ago
8.52 The heights of 2-year-old children are normally distributed with a mean of 32 inches and a standard deviation of 1.5 inches
sweet [91]

Answer:

Heights of 29.5 and below could be a problem.

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

The heights of 2-year-old children are normally distributed with a mean of 32 inches and a standard deviation of 1.5 inches.

This means that \mu = 32, \sigma = 1.5

There may be a problem when a child is in the top or bottom 5% of heights. Determine the heights of 2-year-old children that could be a problem.

Heights at the 5th percentile and below. The 5th percentile is X when Z has a p-value of 0.05, so X when Z = -1.645. Thus

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

-1.645 = \frac{X - 32}{1.5}

X - 32 = -1.645*1.5

X = 29.5

Heights of 29.5 and below could be a problem.

4 0
3 years ago
A small company’s net income for the first six months of the year was $76,500 and for the last six months it was $100,000. What
mr Goodwill [35]

Answer:153/200

Step-by-step explanation:

8 0
4 years ago
Find the number of real number solutions for the equation. x2 + 5x + 7 = 0
horsena [70]
X=-1
-1x2 + 5x-1 +7 = 0
-7+7 =0
0=0
6 0
3 years ago
For what values of k does the graph of y=-2x^2+5x+k not cut the x axis
goldenfox [79]
The answer is 4 because there r three 3 2s
6 0
3 years ago
Other questions:
  • Your favorite football team has three games left to finish the season. the outcome of each game can be win, lose or tie. the num
    15·1 answer
  • Solve each absolute value inequality. Graph the solutions on a number line. |x-7|>1
    13·1 answer
  • How many grams of tea leaves did she use to make tea last week ?
    6·1 answer
  • Which list of vaules is ordered from lest to greastest?
    11·2 answers
  • Assume that a sample is used to estimate a population proportion p. Find the 99% confidence interval for a sample of size 229 wi
    11·1 answer
  • What is the slope intercept of this equation 6x+4x=8
    13·1 answer
  • What is the following quotient? StartFraction StartRoot 96 EndRoot Over StartRoot 8 EndRoot
    10·1 answer
  • 6. A cash register contains $10 bills and $50 bills with a total value of $1080. If there are 28 bills total, then how many of e
    14·1 answer
  • Help math 7th grade.........​
    14·2 answers
  • Whats type of account has a fixed interest rate, a term and a fixed date of<br> withdrawal? *
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!