C. The answer is C because the total amount of students is 14, and there are 4 boys, which makes the ratio 4 boys to 14 students in total. 4 and 14 are both divisable by 2, so divide 4 to get 2 and divide 14 to get 7. This leaves you with 2 and 7. The ratio would be 2 boys to 7 total students. Hope this helped
A^2+24^2=25^2
a^2+576=625
a^2=49 *square root both sides*
a=7 so the answer would be option A
So
(x-4)^2=(x-4)(x-4)=x^2-4x-4x+16=x^2-8x+16
Answer:
A. -25
Step-by-step explanation:
sana nakatulong :-)
Total marks for five tests = 85 * 5 = 425
Total marks in six tests with 90% would be: 90 * 6 = 540
So, the remaining marks will be: 540-425 = 115
Student must earn 115 grade in order to reach other average score of 90%
Hope this helps!
