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Vitek1552 [10]
3 years ago
7

Solve for x. Round your answer to the nearest tenth. (one decimal place) x=??

Mathematics
1 answer:
Fiesta28 [93]3 years ago
6 0

Answer:

<u>Use cosine</u>

  • x/ 8 = cos 20°
  • x = 8 cos 20°
  • x = 7.5
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10| x – 4| - 3 &gt; 47​
Andrew [12]

Answer:

x < -1    or    x > 9

Step-by-step explanation:

10|x-4|-3>47

Add 3 to both sides.

10|x-4|-3+3>47+3

Simplify.

10|x-4|>50

Divide both sides by 10.

\frac{10|x-4|}{10} >\frac{50}{10}

Simplify.

|x-4|>5

Apply absolute value rule: If |u|>a,a>0 then u < -a or u>a

x-4 or x-4 >5

x-4

Add 4 to both sides.

x-4+4

Simplify.

x

x-4>5

Add 4 to both sides.

x-4+4>5+4

Simplify.

x>9

Combine the intervals.

x or x>9

8 0
3 years ago
INCREDIBLY URGENT!!
Gemiola [76]

Answer:

When you see a formula like this, try to operate, so you will see some identities sooner or later. In this case, we have a substraction identity:

\frac{cos ( \alpha  -  \beta )}{cos  \alpha cos  \beta }  =  \frac{cos   \alpha cos  \beta + sin \alpha sin  \beta }{cos  \alpha cos  \beta }  = 1 + tan α · tan β

Step-by-step explanation:

3 0
3 years ago
A map show a town with an area of 3.5 inches.If the map has a scale of 1 inch:4 miles,what is the actual area of the town?
cestrela7 [59]

Answer:

The actual area of the town is 14 miles.

Step-by-step explanation:

Since you know that the scale is 1 inch:4 miles and that the map shows a town with an area of 3.5 inches, you can expressed this as follows:

Scale: 1 inch:4 miles

map area: 3.5 inches

If the actual area is x, you can say that:

3.5:x=1:4

This would be:

\frac{3.5}{x}=\frac{1}{4}

Now, you can solve for x:

x=(3.5*4)/1

x=14

According to this, the answer is that the actual area of the town is 14 miles.

7 0
3 years ago
SIMPLE MATH PROBLEM PLZ ANSWER<br><br> u can pick more than one..
7nadin3 [17]

its the first one 6k - 5

if u were to distribute u need to remember that 6 is negative so it changes -k to a positive 6k and then you would time 4 by -6 which would be -24 but u would just write it like 19 + 6k - 24. then u would add 19 to both sides by 19 which would be like adding 19 to -24 which would equal to -5 so it would equal to 6k - 5.

hope I explained the steps well enough for you.

5 0
3 years ago
(SHOW WORK THANK YOU) A Machine fills 150 bottles of water every 8 minutes.
inn [45]

Answer:

A. 84

B. 90

C. 360

Step-by-step explanation:

675/8 = 84

12 hours= 720 minutes

90

90 times 4 = 360

3 0
3 years ago
Read 2 more answers
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