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dexar [7]
2 years ago
9

jada and diego are practing the piano for sn upcoming rehersal the table list the number of minutes each of them practiced in th

e past few weeks jadas practice time 10 10 20 15 25 25 8 15 20 20 35 25 40. Diegos practice time 25 10 15 30 15 20 20 25 30 45. plz help​
Mathematics
1 answer:
Margarita [4]2 years ago
4 0

Answer:

jadas practice time is 168 minutes or 2 hours 48 minutes.  Diegos practice time is 235 minutes or 3 hours 55minutes hope this helps! have a nice day and good luck with your test!

Step-by-step explanation:

You might be interested in
1a. [1 mark] The price per kilogram of tomatoes, in euros, sold in various markets in a city is found to be normally distributed
andrey2020 [161]

Answer:

The price that is two standard deviations above the mean price is 4.90.

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.

Mean of 3.22 and a standard deviation of 0.84.

This means that \mu = 3.22, \sigma = 0.84

Find the price that is two standard deviations above the mean price.

This is X when Z = 2. So

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

2 = \frac{X - 3.22}{0.84}

X - 3.22 = 2*0.84

X = 4.9

The price that is two standard deviations above the mean price is 4.90.

3 0
3 years ago
QUESTION 17 The sum of two numbers is 53. The larger number is 1 less than 2 times the smaller. What are the two numbers?
Crazy boy [7]

I only know 17 which it should be D

7 0
3 years ago
8. Point Mis 6 units away from the origin. Circle the letter by each pair of possible coordinates. A. (3.0) B. (4.2) C. (5,3) D.
Alex

9514 1404 393

Answer:

  D.  (0, 6)

Step-by-step explanation:

The origin is where the axes cross. The coordinates of that point are (0, 0). The distance of a point (x2, y2) from point (x1, y1) is given by the distance formula ...

  d = √((x2 -x1)² +(y2 -y1)²)

When (x1, y1) = (0, 0), this reduces to ...

  d = √(x² +y²)

We want to find (x, y) such that d=6. This can be a little easier if we square both sides of the equation to eliminate the radical.

  x² +y² = 6² = 36

This is the equation of a circle of radius 6 centered at the origin: all points that are distance 6 from the origin. So, any point on the circle will be at a distance of 6 from the origin.

__

The sum of squares in each case is ...

  A. 3² +0² = 9 . . . inside the circle

  B. 4² +2² = 20 . . . inside the circle

  C. 5² +3² = 34 . . . inside the circle

  D. 0² +6² = 36 . . . on the circle at a distance of 6 from the origin

  E. 4² +4² = 32 . . . inside the circle

  F. 1² +5² = 26 . . . inside the circle

6 0
3 years ago
What percent less than $500 is $200?<br><br><br> Pls help fast
ss7ja [257]

Answer:

60% less

Step-by-step explanation:

its simple really.

7 0
3 years ago
Read 2 more answers
A line with a slope of –36/37 passes through the point (37, –36). What is its equation in slope-intercept form?
iren2701 [21]

Answer:

The answer is

<h2>y =  -  \frac{36}{37} x \\</h2>

Step-by-step explanation:

To find an equation of a line when given the slope and a point we use the formula

y -  y_1 = m(x -  x_1)

where

m is the slope

( x1 , y1) is the point

From the question the point is (37, –36) and the slope is - 36/37

The equation of the line is

y + 36 =  -  \frac{36}{37} (x - 37) \\ y + 36 =  -  \frac{36}{37} x + 36 \\ y =  -  \frac{36}{37} x + 36 - 36

We have the final answer as

y =  -  \frac{36}{37} x \\

Hope this helps you

4 0
3 years ago
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