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IrinaVladis [17]
3 years ago
14

Coach Riley asked 35 students to count the number of push-ups they completed during class. The results are displayed in the box

plot.
He then asked them to complete 4 more by the end of class.

Which of the following statements is TRUE about a new plot with the altered data?
A - The range will Increase by 4 units

B - The median will be greater than 46.

C - The plot will be translated 3 units to the right.

D - The interquartile range will be 4 times larger.

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
4 0

Answer:

I think A

Step-by-step explanation:

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In the 1990s the demand for personal computers in the home went up with household income. For a given community in the 1990s, th
WITCHER [35]

Answer:

a) 0.5198 computers per household

b) 0.01153 computers

Step-by-step explanation:

Given:

number of computers in a home,

q = 0.3458 ln x - 3.045 ;   10,000 ≤ x ≤ 125,000

here x is mean household income

mean income = $30,000

increasing rate, \frac{dx}{dt} = $1,000

Now,

a) computers per household are

since,

mean income of  $30,000 lies in the range of 10,000 ≤ x ≤ 125,000

thus,

q = 0.3458 ln(30,000) - 3.045

or

q = 0.5198 computers per household

b) Rate of increase in computers i.e \frac{dq}{dt}

\frac{dq}{dt} = \frac{d(0.3458 ln x - 3.045)}{dt}

or

\frac{dq}{dt}=0.3458\times(\frac{1}{x})\frac{dx}{dt} - 0

on substituting the values, we get

\frac{dq}{dt}=0.3458\times(\frac{1}{30,000})\times1,000

or

= 0.01153 computers

6 0
3 years ago
What is the answer of a^2+b^2-(a-b)^2
Alex787 [66]
2b^2. This is because you have a positive a^2 and a negative so they cross it one another so it just leaves the b’s.
8 0
3 years ago
Read 2 more answers
3k^2+12k-7kn-28n square meters and a length of 3k-7n meters.
melomori [17]

Step-by-step explanation:

here ! I used the formula area = length × width

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4 0
2 years ago
The cost per hour of running an assembly line in a
nlexa [21]

Answer:

the minimum production level is costing $800 (0.8×$1000) per hour for 2000 (2×1000) items produced per hour.

Step-by-step explanation:

if there is no mistake in the problem description, I read the following function :

C(x) = y = 0.3x² - 1.2x + 2

I don't know if you learned this already, but to find the extreme values of a function you need to build the first derivative of the function y' and find its solutions for y'=0.

the first derivative of C(x) is

0.6x - 1.2 = y'

0.6x - 1.2 = 0

0.6x = 1.2

x = 2

C(2) = 0.3×2² - 1.2×2 + 2 = 0.3×4 - 2.4 + 2 = 1.2-2.4+2 = 0.8

so, the minimum production level is costing $800 (0.8×$1000) per hour for 2000 (2×1000) items produced per hour.

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