Consider this option:
1. to simplify given expression (a-b)/b:
2. to rewrite given expression a/4=b/7:
3. to substitute a/b into the simplified expression:
answer: -3/7
I am assuming the "14" is the exercise number and not a number in the list.
To find the mean, you add up all the values and divide by the number of values you added:
( -32 + -41 + -39 + -27 + -33 + -44 ) / 6 = -216/6 = -36
The mean is -36
Answer:
Bottom right.
Step-by-step explanation:
It is not the top left because that is 1/2,
It is not the bottom left because that is 2/3,
It is not the top right because that is 3/5,
It is the bottom right because it is 3/4.
Answer:
x² = 900
Step-by-step explanation:
ΔABC is an equilateral triangle because its sides are equal lengths
this means their angles are also equal.
180 / 3 = 60
∠BCA and ∠DCA are supplementary angles - add up to 180º
if ∠BCA = 60º, then ∠DCA = 120º
ΔACD is an isosceles triangle because two sides are equal lengths. this means their angles are equal.
∠CAD ≅ ∠CDA
180 - ∠DCA = 2(∠CAD)
180 - 120 = 60
60 / 2 = 30º
x = 30º
x² = 900
Here are formulas we choose from
Increasing: y = a (1 + r)x Decreasing: y = a(1 - r)x
we want increasing
422000(1+.12)^5
743,708 (you don't want the decimals because you can't divide a human...)