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3 years ago

Choose as many answers as apply.

Mathematics

2 answers:

suter [353]3 years ago

3 0

All of them can be accomplished with electronic banking, but C and D would be easiest to do online.

RSB [31]3 years ago

3 0

All of them could be accomplished

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In ΔTUV, the measure of ∠V=90°, the measure of ∠T=54°, and VT = 40 feet. Find the length of UV to the nearest tenth of a foot.

Natali5045456 [20]

Tan T = UV/VT
UV = VT tan T = 40 tan 54
UV = 55.055 ft —> 55.1ft

8 0

3 years ago

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For f(x) =4x+1 and g(x) = x^2 - 5 find (f•g)(x)

Vsevolod [243]

Answer:

The value of function (fog)(x) is 4 x² - 19

Step-by-step explanation:

Given function as :

f(x) = 4 x + 1

g(x) = x² - 5

So , function (fg(x)) can be written as

(fog)(x) = 4 ( x² - 5 ) + 1

Or, (fog)(x) = 4 x² - 20 + 1

Or, (fog)(x) = 4 x² - 19

Hence The value of function (fog)(x) is 4 x² - 19 Answer

3 0

4 years ago

Suppose the probability of an athlete taking a certain illegal steroid is 10%. A test has been developed to detect this type of

Travka [436]

Answer:

93.25% probability that they have taken this steroid

Step-by-step explanation:

Bayes Theorem:

Two events, A and B.

$P(B|A) = \frac{P(B)*P(A|B)}{P(A)}$

In which P(B|A) is the probability of B happening when A has happened and P(A|B) is the probability of A happening when B has happened.

In this question:

Event A: Positive test

Event B: Taking the steroid.

Suppose the probability of an athlete taking a certain illegal steroid is 10%.

This means that $P(B) = 0.1$

Given that the athlete has taken this steroid, the probability of a positive test result is 0.995.

This means that $P(A|B) = 0.995$

Positive test:

99.5% of 10%(If the athlete has taken).

100-99.2 = 0.8% of 100-10 = 90%(Athlete has not taken)

Then

$P(B) = 0.995*0.1 + 0.008*0.9 = 0.1067$

Given that a positive test result has been observed for an athlete, what is the probability that they have taken this steroid

$P(B|A) = \frac{P(B)*P(A|B)}{P(A)} = \frac{0.1*0.995}{0.1067} = 0.9325$

93.25% probability that they have taken this steroid

4 0

3 years ago

A number changed to 12.6 after it was rounded. To what place was the number rounded? Explain how you know.

Anton [14]

If 12.6 was rounded, that means that it was rounded to the tenths place.
You know this because the number has one decimal place, so that must be what it was rounded to.

4 0

4 years ago

Beth was working at the grocery store, in the quick check-out line. A customer bought cereal for $3.29 and milk for $3.45. The c

Phantasy [73]

Answer:

Change = $3.26

Step-by-step explanation:

Given the following data;

Cost of cereal = $3.29.

Cost of milk = $3.45.

Amount paid = $10.00

Total cost of items bought = $3.29 + $3.45 = $6.74

Change = Amount paid - Total cost of items purchased.

Substituting into the equation, we have;

Change = $10.00 - $6.74

Change = $3.26

Therefore, Beth need to give the customer a change of $3.26.

5 0

3 years ago

Read 2 more answers