<h2>
Answer:6</h2>
Step-by-step explanation:
Here's a little tip for you. Any number can be converted to fraction if you use 1 as the denominator:
21
1
So now that we've converted 21 into a fraction, to work out the answer, we put the fraction 2/7 side by side with our new fraction, 21/1 so that we can multiply those two fractions.
That's right, all you need to do is convert the whole number to a fraction and then multiply the numerators and denominators. Let's take a look:
2 x 21
7 x 1
=
42
7
In this case, our new fraction can actually be simplified down further. To do that, we need to find the greatest common factor of both numbers.
You can use our handy GCF calculator to work this out yourself if you want to. We already did that, and the GCF of 42 and 7 is 7.
We can now divide both the new numerator and the denominator by 7 to simplify this fraction down to its lowest terms.
42/7 = 6
7/7 = 1
When we put that together, we can see that our complete answer is:
6
1
The complete and simplified answer to the question what is 2/7 of 21 is:
6
Answer:
115 degrees
Step-by-step explanation:
We know that all the angles of a triangle add up to 180 degrees.
Therefore 7x+10+x+20+2x=180
Combine like terms
10x+30=180
Subtract 30 from both sides (subtraction property of equality)
10x=150
Divide both sides by 10 (division property of equality)
x=15
Now we can plug this into the largest angles equation.
7(15)+10
= 115 Degrees.
Answer:
Angles 7 and 8 are supplementary because they are a pair of adjacent angles that form a straight line.
Supplementary angles add up to 180°
Answer:
probably the 2.38 seconds answer
Step-by-step explanation:
start by setting the entire equation equal to 8, since h(t) is the height and 8m is the height we are looking at right now.
subtract 8 from both sides to get: 
use the Quadratic equation to find the time, the negative answer does not count.
when you do the quadratic equation you get 
In decimal form that's about 2.38 and 0.42 You'd probably go with the 2.38 seconds because the ball starts at 0 seconds, so the lower number is probably to close to the start point.
