Answer:
∠7 = 81°
Step-by-step explanation:
∠1 = ∠7
3x + 18 = 2x + 39
3x - 2x = 39 - 18
x = 21
∠7 = 2x + 39
∠7 = 2(21) + 39
∠7 = 42 + 39
∠7 = 81°
Answer:
An old bone contains 80% of its original carbon-14 in 1844.6479 years
Step-by-step explanation:
We know that
half life time of C-14 is 5730 years
so, h=5730
now, we can use formula
we can plug back h
and we get
An old bone contains 80% of its original carbon-14
so,
P(t)=0.80Po
we can plug it and then we solve for t
So,
An old bone contains 80% of its original carbon-14 in 1844.6479 years
Answer:
the anser is 64 cups
Step-by-step explanation:
half gallon is 8 cups and she bought 8 of them so multiply 8 and 8 or 8^2 and you get 64
pls mark brainliest
Well 3 divided by 100 is 3 hundredths. 3/100=.03 that would be an example. another is 30000 divided by 100. that would be 300. you just take away 2 zeros for that one.
Answer:
Step 1: Rewrite the first two columns of the matrix.
Step 2: Multiply diagonally downward and diagonally upward.
Step 3: Add the downward numbers together.
Step 4: Add the upward numbers together.
Step-by-step explanation:
hope this helps ;)
