Answer:
2i^2+18i+7
Step-by-step explanation:
(5i^2+8i+10)-(3i^2-10i+3)
5i^2+8i+10-3i^2+10i-3
2i^2+18i+7
If x+2 is a factor of x^3+6x^2+kx+10, then if we replace x by -2 in the polynomial x^3-6x^2+kx+10, we must get zero:
x=-2→(-2)^3-6(-2)^2+k(-2)+10=0→
-8-6(4)-2k+10=0→
-8-24-2k+10=0
-2k-22=0
Solving for k. Adding 22 both sides of the equation:
-2k-22+22=0+22
-2k=22
Dividing both sides of the equation by -2:
-2k/(-2)=22/(-2)
k=-11
Answer: k = - 11
If they are congruent, C is 60
Answer:
B and C
Step-by-step explanation:
i just did this give me brainliest
Gallons of gas, approximately how far has<span> George </span>driven? A.). 2.8. B.) 38. 20. It costs a shoe .... Janice is going<span> on </span>vacation<span> and needs to leave </span>her<span> dog at a kennel. Nguyen's .... </span>She has already driven 60 miles<span>in </span>one hour<span>. </span>Her average speed<span> for the </span>rest<span> of the </span>trip<span> is </span>57 miles per hour<span>. How </span><span>far will Sylvie have driven 7 hours</span>