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3 years ago

Hurry!

Mathematics

2 answers:

makvit [3.9K]3 years ago

4 0

Answer:

f(x) = 4|x|

Step-by-step explanation:

The fourth function, f(x) = 4|x| will have a graph narrower than that of |x|.

IRISSAK [1]3 years ago

4 0

Answer: Hello there!

the parent function is f(x) = IxI

now let's analyze the options:

a) f(x) = IxI - 3

this is a displacement of -3 units in the y-axis, so this is not narrower than the parent function

b) f(x) = I x +2I

this is a displacement of -2 units in the x-axis

c)f(x) = 0.5IxI

This means that the value of Y is 0.5 the value of the parent function, this means that when the parent function is 1, this function is equal to 0.5, then this graph will be wider than the one of the parent function.

d)f(x) = 4IxI

now this function increases faster than the parent function when the parent function is equal to 1, this function is equal to 4, so this function is narrower than the parent function.

So the right option is f(x) = 4IxI

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Lady bird [3.3K]

Answer:

i can't solve it because it's not complete

you need something 2^2 (right here) -^1=8^x-1

Step-by-step explanation:

5 0

2 years ago

A sample of 15 commuters in Chicago showed the average of the commuting times was 33.2 minutes. If s = 8.3 minutes, find the 95%

OleMash [197]

Answer:

The 95% confidence interval of the true mean.

(29.4261 ,36.9739)

Step-by-step explanation:

Step :- (i)

Given sample size 'n' =15

sample of the mean x⁻ = 33.2

The standard deviation of the sample 'S' = 8.3

95% of confidence intervals

$(x^{-} - t_{\alpha } \frac{S}{\sqrt{n} } ,x^{-} + t_{\alpha }\frac{S}{\sqrt{n} } )$

Step:-(ii)

The degrees of freedom γ=n-1 = 15-1=14

The tabulated value t = 1.761 at 0.05 level of significance.

now substitute all possible values, we get

$(33.2 - 1.761\frac{8.3}{\sqrt{15} } ,33.2+ 1.761\frac{8}{\sqrt{15} } )$

After calculation , we get

(33.2-3.7739 , 33.2+3.7739

(29.4261 ,36.9739)

Conclusion:-

the 95% confidence interval of the true mean.

(29.4261 ,36.9739)

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3 years ago

What is the measure of the unknown angle?

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The measure of the unknown angle in the full circle is calculated as: 310 degrees.

<h3>What is the Measure of a Full Circle?</h3>

The angle measure of a full circle equals 360 degrees.

The full circle given is divided into two angles, of which 50 degrees is a measure of one of the angles.

The unknown angle = 360 - 50 = 310 degrees.

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