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3 years ago

Which expression means "the difference between two times six and five?"

Mathematics

2 answers:

nalin [4]3 years ago

5 0

Answer:

Step-by-step explanation:

alexgriva [62]3 years ago

4 0

The answer is A!
Hoped I help! Mark me brainly! It would help a lot !

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Construct 98% confidence intervals based on the following data: 49, 38, 67, 69, 58, 70, 66, 85.

Orlov [11]

Answer:

May I have a little more context please?

Step-by-step explanation:

6 0

3 years ago

Shannon drew the line of best fit on the scatter plot shown below:

N76 [4]

Using the points (0,14) and (10,0), the gradient of the line is (14-0)/(0-5) which simplifies to -7/5.

From these points, we can also see that when the x value is zero, the y value is 14. Therefore the y-intercept is 14.

We can then put this into the equation of a straight line, y=mx+c:

y = (-7/5)x + 14

6 0

3 years ago

Read 2 more answers

A factory produce bicycles at a rate of 110+0.5t^2-0.9t bicycles per week (t in weeks)

klasskru [66]

Answer:

221

Step-by-step explanation:

Day 8 is the first day of the second week.

Day 21 is the last day of week 3.

We need to know the n umber of bicycles made from t = 1 to t = 3

The function is b(t) = 110 + 0.5t^2 - 0.9t, where t is in weeks.

We need to integrate the function with the limits of 1 to 3.

$\int_{1}^{3} (110 + 0.5t^2 - 0.9t) dt$

$\int_{1}^{3} (110 + \dfrac{t^2}{2} - \dfrac{9t}{10}) dt$

$= 110t + \dfrac{t^3}{6} - \dfrac{9t^2}{20} \Biggr|_{1}^{3}$

$= 330.45 - 109.72$

$= 220.7333$

Answer: 221

3 0

3 years ago

Total power generated by wind worldwide doubles every 3 years. In a particular year, the world wind-generating capacity was abou

IceJOKER [234]

<span>You are given the sum of the power created by wind worldwide which doubles every 3 years. In one an unknown year, the world wind generating capacity was about 91 thousand megawatts. You are asked for the growth rate. the growth rate formula is given below:

growth rate = (present / past)^(1/n)
2 = (present/91MW)^(1/3)
the present power is 728MW</span>

7 0

3 years ago

The ratio of yellow shirts to green shirts in Ms. Grayson’s closet is 5:2. She has a total of 21 yellow and green shirts combine

VikaD [51]

15 yellow 6 green
5+2 equals 7
21 divided by 3 is 7
5x3=15
2x3=6

6 0

2 years ago