Answer:
2
Step-by-step explanation:
x÷3 dư 1-->x=3a+1
y÷3 dư 2-->y=3b+2
x×y=(3a+1)×(3b+2)
=9ab+6a+3b+2
Mà 9ab, 6a, 3b chia hết cho 3, 2 chia 3 dư 1
==>x×y chia 3 dư 2
If you would like to know the values of a, b, and c in the quadratic equation -2x^2 + 4x - 3 = 0, you can find this using the following steps:
ax^2 + bx<span> + c = 0
</span>
-2x^2 + 4x - 3 = 0
a = -2
b = 4
c = -3
The correct result would be <span>d. a = –2, b = 4, c = – 3</span>.
Answer:
x > -2
Step-by-step explanation:
Simply subtract 13 from both sides to find you answer!
Answer:
Let's create this right triangle. We will call it triangle ABC with angle B as the right angle, angle A being the larger of the angles A and C. If the ratio is 5:4, then it is A:C. 5+4 = 9. The measure of the right angle, angle ABC = 90, and 90 divided by 9 is 10. So angle A is 5 * 10 which is 50 degrees, and angle C is 4 * 10 which is 40 degrees. The smallest angle, angle C, is 40 degrees.
Step-by-step explanation:
