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3 years ago

HURRY PLEASEEEEE I RLLY NEED THISSS

Mathematics

2 answers:

lilavasa [31]3 years ago

8 0

Answer:

Option 2

Step-by-step explanation:

Given function:

x=8 and y=6
x=5 and y=20

<em><u>Option 1: ×</u></em>

Table one: y=8-6

if y is 6 then 8-6 can’t be 6 it is 2.

<u><em>Option 2: √</em></u>

Table one:

y=8-2

y would be 6 then this would be correct..

Table two:

y=4x

if y=20 then x would be 5 and if y is 16 then x=4.

<u><em>Option 3:×</em></u>

y=4x

this is wrong since table 2 is y=4x..

<u><em>Option 4:×</em></u>

Table one

y=x-4

if y is 6 and x is 8 then this is wrong..

Therefore, option 2 is correct..

NemiM [27]3 years ago

3 0

The answer is option 2

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3 years ago

A multiple choice test has two parts. There are 4^12 ways to answer the 12 questions in Part A. There are 4^5 ways to answer the

LiRa [457]

Using the Fundamental Counting Theorem and the probability concept, it is found that:

There are $4^{17}$ ways to answer all 17 questions.

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<h3>What is the Fundamental Counting Theorem?</h3>

It is a theorem that states that if there are n things, each with $n_1, n_2, \cdots, n_n$ ways to be done, each thing independent of the other, the number of ways they can be done is:

$N = n_1 \times n_2 \times \cdots \times n_n$

<h3>What is a probability?</h3>

A probability is given by the number of desired outcomes divided by the number of total outcomes.

In this problem:

The questions in part A and in part B are independent.

For the 12 questions in part A, there are $4^{12}$ ways to answer, hence $n_1 = 4^{12}$ .

For the 5 questions in part B, there are $4^{5}$ ways to answer, hence $n_2 = 4^{5}$ .

Then:

$N = n_1 \times n_2 = 4^{12} \times 4^5 = 4^{17}$

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Only one outcome in which all the guesses are correct, hence:

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You can learn more about the Fundamental Counting Theorem at brainly.com/question/24314866

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3 years ago

Find the average rate of change of f(x) = 4x² – 3 from 3 to 9.

Lina20 [59]

Answer:

Step-by-step explanation:

Given:

$f(x) = 4x^2 - 3$

Required:

Average range of change from 3 to 9

SOLUTION:

Step 1:

Find f(3) and f(9):

To find f(3), replace x with 3 in the given function

$f(3) = 4(3)^2 - 3$

$f(3) = 4(9) - 3$

$f(3) = 36 - 3$

$f(3) = 33$

To find f(9), replace x with 9 in the given function

$f(9) = 4(9)^2 - 3$

$f(9) = 4(81) - 3$

$f(9) = 324 - 3$

$f(9) = 321$

Average rate of change = $\frac{f(b) - f(a)}{b - a}$

Where,

$a = 3, f(a) = 33$

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Plug in the values into the formula for average rate of change.

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3 0

3 years ago

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pishuonlain [190]

Answer:

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Step-by-step explanation:

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3 years ago