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3 years ago

IA6 Review I NEED THE ANSWERS

Mathematics

1 answer:

vitfil [10]3 years ago

4 0

Can you explain it or maybe take a picture?

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If f(x) = 2x+4, which of the following is the inverse of f(x)?

creativ13 [48]

Answer:

${f}^{ - 1} (x)= \frac{x}{2} - 2$

Step-by-step explanation:

The given function is

$f(x) = 2x + 4$ Let

$y = 2x + 4$

Interchange x and y.

$x = 2y + 4$

Solve for y,

$x - 4 = 2y$

Divide both sides by 2

$y = \frac{x}{2} - 2$

Therefore;

${f}^{ - 1} (x)= \frac{x}{2} - 2$

3 0

2 years ago

Drew does push-ups every three days starting in January 3.He does sit ups every four days starting on January 4.on which days in

shepuryov [24]

January 12 because he will be on his 4th day of push ups and his 3rd day of situps

3 0

3 years ago

HELP ME FAST PLS! I only have like an hour..

Dominik [7]

Answer:

2/10 and 0.2

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

A study found that a 95% confidence interval for the mean μ of a particular population was computed from a random sample of 1200

kotykmax [81]

Answer:

95% confidence interval for the mean μ is (6,14)

The Population mean μ lies between ( 6, 14 )

Step-by-step explanation:

<u><em>Explanation</em></u>:-

Given random sample 'n' = 1200

95% confidence interval for the mean μ is determined by

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

Level of significance = 95% 0r 0.05

Z₀.₀₅ = 1.96

$(x^{-} -Z_{\alpha } \frac{S.D}{\sqrt{n} } , x^{-} +Z_{\alpha } \frac{S.D}{\sqrt{n} } )$ = 10 ± 4

Mean of the small sample = 10

95% of confidence intervals are

( 10 ±4 )

( 10 -4 , 10+4)

( 6 , 14 )

95% confidence interval for the mean μ lies between ( 6, 14 )

8 0

2 years ago

Measurement: Customary Units", then answer each of the following questions. Round answers to the nearest hundredth, if necessary

Neporo4naja [7]

Solution

For this case we have the following amount: 35 pints

We want to convert this into quarts so we can do this:

$35Pts\cdot\frac{1quart}{2Pts}=17.5\text{quarts}$

Then the answer rounded to the nearest hundredth is:

17.50 quarts

3 0

7 months ago