3 years ago

Three times a number, less twice the number and 9 is 17. What is the number?

1 answer:

7 0

I believe your answer is 8.

Three times a number less than twice the number and nine is seventeen can be written as: 3n - 2n + 9 = 17

Solve for n as follows:

3n - 2n = n

n + 9 = 17

17 - 9 = 8

Hope this helps! :)

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Select the correct answer. For what value of x is sin x = cos 19º, where 0°< x < 90°? OA. 38° ° O B. 71° OC. 26° O D. 19°

Lerok [7]

Answer:

x = 71°

Option B is correct answer.

Step-by-step explanation:

We need to find for what value of x is $sin\: x = cos 19^{\circ}$ , where 0°< x < 90°?

Solving:

$sin\: x = cos\: 19^{\circ}\\Finding \:cos\: 19^{\circ}=0.94551\\Putting\:value:\\sin\:x=0.94551\\Now\:taking\:sin\:inverse\\x=sin^{-1}(0.94551)\\x=71^{\circ}$

So, we get x = 71°

Option B is correct answer.

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2 years ago

^lets start off easy☺️^

butalik [34]

Answer:

mary=10 jack=15

Step-by-step explanation:

After 4 years Mary (x+4), Jack's age (x+5) + 4.

sum of the ages after 4 years :(x+4) + (x+5) +4=33

Simplifying the equation:

2x+13 = 33 ----->> 2x=20----->>>>x = 10 Mary's age

10 + 5 = 15 which is Jack's age.

7 0

3 years ago

Grass can grow up to six inches in 7 days depending on the temperature, humidity, and time of year. At this rate, how tall will

Charra [1.4K]

Answer:

24 inches

Step-by-step explanation:

if the temperature humidity and time of year is based on an average

8 0

2 years ago

Read 2 more answers

Is it possible to factor x cubed?

liberstina [14]

I dont think so.
factoring means make simpler
x cubed is already is simple so i dont think you cant. correct me if i am wrong

7 0

3 years ago

The equation of a line is y = {x+5.

Mariulka [41]

Answer:

Sorry I did not know your answer

4 0

2 years ago