His score is 50
How to:
First test grade:0
Second test grade:50
Third test grade: 100
Add all three and divide by 3
<span>The first equation is
x + y = 27
For the second equation, there are twice as many girls (y) as boys (x), so you write:
y = 2x
Now you have a system of equations:
x + y = 27
y = 2x</span>
Answer:There are many different answers :-) but 100, 40, 40 is one
Step-by-step explanation:
There are quite a few answers, but you need to make sure 1 angle is greater than 90 degrees. The remaining two angles should add up to less than 89 degrees and all 3 angles should total 180 degrees.
i.e. 100, 40, 40
Answer:
abcdefghijklmnopqrstuv
Step-by-step explanation:
Answer:
C)
Step-by-step explanation:
Trigonometry ratio:

We need to find the opposite side using Pythagorean theorem.
opposite side² = hypotenuse² - adjacent side²
= 10² - (-3)²
= 100 - 9
= 91
opposite side = √91


In quadrant II, value of tan
is negative.
