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4 years ago

What is the value of f(3) when f(x)=4x+1?

Mathematics

2 answers:

gregori [183]4 years ago

7 0

Answer:

F(x)= 4x+1

To find f(3) you substitute it into x.

F(3)= 4(3)+1

F(3)=12+1

F(3)=13

Step-by-step explanation:

LUCKY_DIMON [66]4 years ago

5 0

Answer:

F(3)=13

Step-by-step explanation:

4*3+1

Swap X for 3 to get your answer

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Suppose that it is known that the number of items produced in a factory during a week is a random variable with mean 50. If the

iVinArrow [24]

Answer:

The probability would be 0.9586

Step-by-step explanation:

Given,

Mean, $\mu = 50$ ,

Variance, $\sigma^2 = 24$

Standard deviation,

$\sigma = \sqrt{24}=2\sqrt{6}$ ,

If X represents the number of items produced in a factory during a week.

Hence, the probability that this weeks production will be between 40 and 60

$=P(40 < X < 60)$

$=P(\frac{40-\mu}{\sigma} < \frac{X-\mu}{\sigma} < \frac{60-\mu}{\sigma})$

$=P(\frac{40-50}{2\sqrt{6}} < z < \frac{60-50}{2\sqrt{6}})$

$=P(-\frac{10}{2\sqrt{6}} < z < \frac{10}{2\sqrt{6}})$

$=P(-2.041 < z < 2.041)$

$=P(z< 2.041) - P(z< -2.041)$

Using z score table

= 0.9793 - 0.0207

= 0.9586

4 0

3 years ago

In ΔLMN, the measure of ∠N=90°, the measure of ∠M=66°, and MN = 8.7 feet. Find the length of LM to the nearest tenth of a foot.

vivado [14]

Answer: 21.4

Step-by-step explanation:

If you are here from delta math this is the answer

5 0

3 years ago

The new ranking functions make it easy to include a column in a result set that provides the sequential ranking number of each r

arlik [135]

Answer:

Partition

Step-by-step explanation:

Partition in mathematics is a way of calculating maths problems that involve enormous numbers by halving or ranking them into smaller units so they’re straightforward to work with. For instance, rather than adding up digits in a column,

+32

118

You can rank these numbers into units, like this…

80 + 6 + 30 + 2

Rearrange and the tens up

80+30+6+2=118

8 0

3 years ago

Help, need to find value of x and explain how I did it (the method used)

garri49 [273]

Answer:

X = 40 degree

Step-by-step explanation:

First I would name the points whatever you do always name the points it really helps

So,

75 = a

50 = b

The middle point will be o

85 = c

X = d

Ok so,

Angle aob = y

Angle cod = z

Now,

75+50+y=180 (angle sum property)

y=180-125

y=55

Angle y = z (vertically opposite angles)

55+85+x=180 ( angle sum property )

x=180-140

Therefore x=40 degree

In higher classes you will be able to do this in your mind itself without calculation all you need is practice.

7 0

4 years ago

Read 2 more answers

An amusement park has 11 roller coasters. In how many ways can you choose 4 of the roller coasters to ride during your visit to

Vadim26 [7]

4!=4*3*2*1=24
11!=11*10*9*8*7*6*5*4*3*2*1=39916800
7!=7*6*5*4*3*2*1=5040
n choose k
how many ways are there to choose k rollercoasters from n choices?

$\left(\begin{array}{ccc}n\\k\end{array}\right)$ = $\frac{n!}{k!(n-k)!}$

$\left(\begin{array}{ccc}11\\4\end{array}\right)$ = $\frac{11!}{4!(11-4)!}$ = $\frac{39916800}{24(7)!}$ = $\frac{39916800}{24(5040)}$ = $\frac{39916800}{120960}$ =330

330 ways

6 0

4 years ago