Answer:
here were 328 parts per million of carbon dioxide in the atmosphere in 1959.
there are 414 parts per million of carbon dioxide in the atmosphere in 2017.
the increase is 414 - 328 = 86 parts per million.
the ratio of the increase to the amount in 1959 is 86 / 328 = .262.
the percent increase is 100 times that and is equal to 26.2%.
Step-by-step explanation:
Answer:
y
=
3
√
27
x
−
54
+
5
Step-by-step explanation:
what r the answer choices?
and does this help?
Horizontal translation - 2 units right.
Vertical translation - 5 units up
Stretch / compression - stretched by a factor of 3.
Reflection - not reflected.
The answer is 6.601, and therefore, the second option.
Answer:
discount = 290 × <u>1</u>
4
= 72.50
new price is
290.00
<u>72.50</u> -
217.50
The arcs FA, AB, and <u>BF</u> make up the entire circle, so their measures sum to 360°:
arcFA + arcAB + arcBF = 360° → arcBF = 360° - 160° - 140° = 60°
By the inscribed angle theorem, angle BAF has measure equal to half of that of arc BF, so
angleBAF = 30°
By the secant-tangent theorem (not sure if there's an official name for it), the measure of angle ACF is equal to half the difference of the arcs it intercepts, namely BF and FA, so that
angleACF = 1/2 (arcFA - arcBF) = 1/2 (160° - 60°) = 50°
Now use the law of sines for solve for FA:
sin(angleACF) / FA = sin(angleBAF) / FC
sin(50°) / FA = sin(30°) / 10
FA = 10 sin(50°) / sin(30°) ≈ 15.3
