Answer:
ok i dont know this one
Step-by-step explanation:
Answer:
The answer would be 8.
Step-by-step explanation:
This is a percentage question, and I have struggled with these before but this is the <em>easiest</em> way to solve it given these certain criteria.
Alright, so it's given that:
A) 90%= an A grade
and
B) This is an 80-question test.
Given these, we can do the following:
90% times 80, which equals <em>72</em>.
Just to check, we know that to convert percentages to fractions, we move the decimal two spots to the left, therefore 90%= 0.90, or 0.9. We take 72 and divide it by 80, and we get 0.9, thus showing that it is correct.
Then, we do 80-72 and using simple math we get 8.
2 3/4 - 1 = 1 3/4 or 1.75
Surface are is length times height.
8*8=64
a cube has 6 sides
64*6=384
Answer:
"1. (−3, −7)"
Step-by-step explanation:
If we have a point (x,y),
1. Reflection across x axis makes it (x, -y)
2. Reflection across y axis makes it (-x, y)
So we see x-axis reflection simply changes sign of y coordinate & y-axis reflection changes the sign of x coordinate (keeping x and y same, respectively).
Thus, the question asks to reflect (-3,7) about x-axis, so we change sign of y coordinate, 7 becomes -7. THus, the point becomes:
(-3,-7)
Answer choice #1 is right.
