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Oksana_A [137]
3 years ago
8

Tina's age is 4 years less than 3 times her niece's age. If her niece's age is x years, which of the following expressions best

shows Tina's age? x − 4 4x − 3 3x − 4 4 − 3x
Mathematics
2 answers:
Arada [10]3 years ago
8 0

Answer:

<em>3x</em> - 4

Step-by-step explanation:

As Tina's age is 3 into <em>x</em> ( 3 x <em>x</em><em>=</em> 3x)but 4years less (-4)

Therefore Tina's age is 3x - 4

salantis [7]3 years ago
8 0

Answer:

3x - 4

Step-by-step explanation:

Use these representations:  niece's age: x

We triple x and then subract 4 years from the result, obtaining:

Tina's age:  3x - 4

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A small forest fire is cited due north of a fire lookout tower on Pikes Peak. From a second tower located 12.6 miles due west of
Brums [2.3K]

Answer:

10.76 miles

Step-by-step explanation:

<em>The following figure can be drawn from the information given.</em>

<em>We have to find the adjacent side which is between the given angle and 90 degrees.</em>

<em>Tan formula will be applied</em>

Tan (anlge) = opposite/adjacent

Opposite = 12.6

Angle = 49.5°

Adjacent = x

Tan (49.5°) = 12.6/x

x = 10.76 miles

Therefore, the fire is 10.76 miles away from the tower Pikes Peak.

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5 0
3 years ago
A city council consists of seven Democrats and five Republicans. If a committee of four people is selected, find the probability
Hoochie [10]

Answer:

The probability  of selecting two Democrats and two Republicans is 0.4242.

Step-by-step explanation:

The information provided is as follows:

  • A city council consists of seven Democrats and five Republicans.
  • A committee of four people is selected.

In mathematics, the procedure to select k items from n distinct items, without replacement, is known as combinations.

The formula to compute the combinations of k items from n is given by the formula:

{n\choose k}=\frac{n!}{k!\times (n-k)!}

Compute the number of ways to select four people as follows:

{12\choose 4}=\frac{12!}{4!\times (12-4)!}=495

Compute the number of ways to selected two Democrats as follows:

{7\choose 2}=\frac{7!}{2!\times (7-2)!}=21

Compute the number of ways to selected two Republicans as follows:

{5\choose 2}=\frac{5!}{2!\times (5-2)!}=10

Then the probability  of selecting two Democrats and two Republicans as follows:

P(\text{2 Democrats and 2 Republicans})=\frac{21\times 10}{495}=0.4242

Thus, the probability  of selecting two Democrats and two Republicans is 0.4242.

6 0
2 years ago
13. Find the arc length with the given information . centralangle = pi/4, radius = 6
zimovet [89]

Answer:

it is 4th one for 14 it is 2nd one

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
|15| = _____ |-35| = _____<br><br><br> I need the answers
miss Akunina [59]

Answer:

15,35

Step-by-step explanation:

In absolute value you just remove the negative sign. Absolute value of something is always positive.

8 0
3 years ago
What is 271,403 rounded to the nearest ten thousand
son4ous [18]
It can be rounded to 270,000 because 4 is less than half. (4 and below drops it down)
8 0
3 years ago
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