Answer:
a
Step-by-step explanation:
Answer: x=-2 y=13
2(-2)+1=-3 check
-2-2=-4 check
Step-by-step explanation:
Horner's method:
2 1 -3
1 -2 -4
delta = det(
2 1
1 -2) = 2×-2 - 1 = -5
x = det(
-3 1
-4 -2)/-5 = (-2×-3-1×-4)/-5 = -2
y = det(
2 -3
1 -4)/-5 = (-8+3)/-5 = 1
Or by elimination
x = 2y - 4 from adding 2y=2y to second eqn
2(2y-4)+y=-3 by substituting for x in first.
4y-8+y=-3
5y=8-3=5
y=1
x=2y-4=2-4=-2
Answer:
8 feet
Step-by-step explanation:
You would use the Pythagorean theorem to find it.
a^2 + b^2 = c^2
Therefore:
6^2 + b^2 = 10^2
36 + b^2 = 100
-36 -36
b^2 = 64
Square root both sides
b = 8
She burns 250 by herself and she burns 3 times as many with her sister.
Multiply the calories by herself by 3:
250 x 3 = 750
Now you need to multiply that by the number of hours.
The formula is a. t[c(h)] = 750h
Answer:
Option 3
Step-by-step explanation:
SAS Triangle Congruence Theorem