Answer:
B,∠BAC=40°
Step-by-step explanation:
diameter makes 90° on the circumference.
∠CBA=90°
∠ACB+∠CBA+∠BAC=180°
50+90+∠BAC=180
∠BAC=180-140=40°
Answer:
real and rational
Step-by-step explanation:
If you look at the picture below, you'll see that -5/8, which is a negative fraction, falls into these two categories.
If you're asking for what part of the bathroom floor won't be brown the answer is 3/4. But if you are looking for other fractions that represent, or are equivalent to 1/4, you can say 2/8 or 4/16. Hope this is what you are asking for.
The next number in the pattern would be 14.03.
To find this, note the differences found by subtracting each number from the number that comes after.
4.03 - 2.78 = 1.25
5.78 - 4.03 = 1.75
8.03 - 5.78 = 2.25
10.78 - 8.03 = 2.75
Since each difference goes up by .5 each time, we know we can add .5 to the last difference to find the newest one.
2.75 + .5 = 3.25
Now we have the difference, so we add that to the last number.
10.78 + 3.25 = 14.03
This is 5 points but whatever
r(x)=12x
c(x)=5x+20
so
p(x)=r(x)-c(x)
p(x)=(12x)-(5x+20)
p(x)=12x-5x-20
p(x)=7x-20
answer is B