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hram777 [196]
4 years ago
15

Please please help me!!

Mathematics
2 answers:
podryga [215]4 years ago
5 0
Answer: square root of three or 1.73205

Hope this helps :)
scZoUnD [109]4 years ago
3 0

Answer:

√3

Step-by-step explanation:

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Look at the following equation: 3x(-8)=(-171) divided by 9. decide if the equation is true or false explain your reasoning.
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Sorry I don’t know the question
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A frame is 10in tall and 5in wide. If it is reduced to a height of 2in, then how wide will it be?
ELEN [110]

Answer:1 inch

Step-by-step explanation:

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3 years ago
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What percentage of people have an IQ score
Brrunno [24]
We need to find the area under the standard normal curve that is to the right of 66.

Various ways of doing this include the following:

1) Calculator:  normalcdf(66, 10000, 100, 15) = 0.988, or 98.8%

2) z-scores (using a published table of z scores)
                                                                                      66 - 100
     a)  Find the z score corresponding to 66.  It is z = -------------- = -2.27
                                                                                             15

      b) Find the area under the st. normal curve to the left of z=-2.27 (it is                   0.012).  Subtract that area from the total area, 1.000.  The result will                be the answer to this question. 

8 0
3 years ago
Based on a study of population projections for 2000 to​ 2050, the projected population of a group of people​ (in millions) can b
Olegator [25]

Answer:

(a) 0.107 million per year

(b) 0.114 million per year

Step-by-step explanation:

A(t) = 11.19(1.009)^t

(a) The average rate of change between 2000 and 2014 is determined by dividing the difference in the populations in the two years by the number of years. In the year 2000, t=0 and in 2014, t=14. Mathematically,

\text{Rate}=\dfrac{A(2014) - A(2000)}{2014-2000}=\dfrac{11.19(1.009)^14-11.19(1.009)^0} {14}

A(0)=\dfrac{12.69-11.19}{14}=\dfrac{1.5}{14}=0.107

(b) The instantaneous rate of change is determined by finding the differential derivative at that year.

The result of differentiating functions of the firm y=a^x (where a is a constant) is \dfrac{dy}{dx}=a^x\ln a. Let's use in this in finding the derivative of A(t).

A\prime(t) = \dfrac{A}{t}=11.19\cdot1.009^t\ln1.009

In the year 2014, t=14.

A\prime(14) =11.19\cdot1.009^14\ln1.009=0.114

6 0
3 years ago
Samantha fills her car's gas tank. It now has 18 gallons of gas. She uses 1/2
Yuliya22 [10]

Answer:

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6 0
3 years ago
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