Answer:
x = 24
Step-by-step explanation:
let x be the number we want to determine its value
The statement x increased by ¼ of itself is equal to 30
is equivalent to :
5x = 4× 30
then
5x = 120
then
x = 120/5
then
x = 24
Answer:
343
Step-by-step explanation:
if you have a cube, then the volume is one of the sides cubed, or to the third power. 7^3 can be represented as 7*7*7, or 7x7x7, which is 343.
Brainliest
Answer:
-3x+4
Step-by-step explanation:
The answer is -3x+4 because first you have to compine like terms then you will get -3x , then you will get the answer -3×+4 .
Answer:
C ≈ 22.1°
Step-by-step explanation:
The law of cosines formula is given. Solving it for C, we find ...
C = arccos((a^2 +b^2 -c^2)/(2ab))
where a and b are the sides adjacent to the angle.
Then we have ...
C = arccos((14^2 +19^2 -8^2)/(2·14·19)) = arccos(493/532)
C ≈ 22.1°
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If you have a fair number of these to do, a spreadsheet is a useful tool. There are also triangle solver apps on the web or your local smart platform that will do this, too.
This type of problem is made to test to see if you can break apart addition problems to make it easier to add. In this one, we will break apart one of the 6's into 4 and 2. This gives us 6+4+2. Now 6+4= 10, so we made two 6's into 10+2.
