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Otrada [13]
3 years ago
11

Find the value of x so that the function has the given value. f(x) = 6x + 9; f(x) = 21

Mathematics
1 answer:
Olin [163]3 years ago
3 0

Answer:

x = 2

Step-by-step explanation:

We need to find the value of x so that the value of given function becomes 21 .

We have ,

f(x)=21\\\\ f(x)= 6x + 9

Now , for finding x ,

6x +9 = 21 \\\\ 6x = 21 -9 \\\\ 6x = 12 \\\\ x = 2

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Which rays are part of like BE
tensa zangetsu [6.8K]

Answer:

What rays?

Step-by-step explanation:

Is it the new album of BtS?

6 0
3 years ago
Jimmy Neutron is building a skateboarding ramp that is 16 inches high. The angle formed by the ramp and the ground is 21 degrees
adell [148]

Answer:

44.65 inches

Step-by-step explanation:

Height of ramp = 16 inches

Length of ramp, l

Angle formed by ramp and ground = 21°

Using Pythagoras :

Sinθ = opposite / hypotenus

Sin21° = 16 / l

0.3583679 = 16 / l

0.3583679 * l = 16

l = 16 / 0.3583679

l = 44.646855 inches

Hence, length of ramp is 44.65 inches

5 0
3 years ago
7.4 Practice
pickupchik [31]

The simulation of the medicine and the bowler hat are illustrations of probability

  • The probability that the medicine is effective on at least two is 0.767
  • The probability that the medicine is effective on none is 0
  • The probability that the bowler hits a headpin 4 out of 5 times is 0.3281

<h3>The probability that the medicine is effective on at least two</h3>

From the question,

  • Numbers 1 to 7 represents the medicine being effective
  • 0, 8 and 9 represents the medicine not being effective

From the simulation, 23 of the 30 randomly generated numbers show that the medicine is effective on at least two

So, the probability is:

p = 23/30

p = 0.767

Hence, the probability that the medicine is effective on at least two is 0.767

<h3>The probability that the medicine is effective on none</h3>

From the simulation, 0 of the 30 randomly generated numbers show that the medicine is effective on none

So, the probability is:

p = 0/30

p = 0

Hence, the probability that the medicine is effective on none is 0

<h3>The probability a bowler hits a headpin</h3>

The probability of hitting a headpin is:

p = 90%

The probability a bowler hits a headpin 4 out of 5 times is:

P(x) = nCx * p^x * (1 - p)^(n - x)

So, we have:

P(4) = 5C4 * (90%)^4 * (1 - 90%)^1

P(4) = 0.3281

Hence, the probability that the bowler hits a headpin 4 out of 5 times is 0.3281

Read more about probabilities at:

brainly.com/question/25870256

8 0
2 years ago
She leaves a 20% tip of 1.80 what is the price of mira’s breakfast before the tip.
Scilla [17]

Answer:

$9

Step-by-step explanation:

The breakfast before tip costs x.

The tip is 20% of x.

The tip is $1.80.

20% × x = 1.80

0.2x = 1.8

x = 1.8/0.2

x = 9

Answer: $9

7 0
3 years ago
How did the world's countries solve the problem that mean solar time varies continuously as a traveler's longitude changes
inn [45]

To solve the problem related to mean solar time where it varies continuously as a traveler's longitude changes, scientists divided the earth into 24 time zones (adding other partial zones to it). All the countries in each time zones had to keep the mean standard time assigned to it.

<h3>What is Mean Standard Time?</h3>

This is the time that is measured by synchronizing clocks in different geographical locations within the same time zone to the same time.

See the link below for more about Mean Solar Time:

brainly.com/question/26063957


8 0
2 years ago
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