Which of the following has a positive value? sec (2pi/3) tan (2pi/3) cos (2pi/3) csc (2pi/3)
Answers
Answer: D) csc (2π/3)
Step-by-step explanation:
2π/3 is in Quadrant II
Quadrant II has a negative x-value and a positive y-value.
x-values are: cos & sec
y-values are: sin & csc
tan = y/x so will be negative in Quadrant II
A) sec = -
B) tan = -
C) cos = -
D) csc = + this works!
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during her first six months, susie gained 25% more than her birth weight. if she gained 2 1/2 pounds during this period, how much did she weigh at birth?
A restaurant chef ordered 4 pounds of beef at $3.25 per pound, 6 pounds of potatoes at $1.96 a pound, and 5 pounds of carrots at $1.81 per pound. He estimates that this will make 28 meals. If he charges $20 per meal, how much profit will he make for each meal?
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Answers
Answer:$352.16
Im in a rush so cant add explaination
B. 4^16/81 square inches
C. 2^8/9 square inches
D. 4^8/9 square inches
Answers
2_4/9 * 2_4/9
Mixed numbers cannot be multiplied, so first convert to improper fractions:
(9*2)+4 = 18+4 = 22/9
22/9 * 22/9
Multiply straight across:
(22*22)/(9*9) = 484/81
Now turn this into a mixed number:
81 goes into 484 five times with 79 left over:
5_79/81 square inches
Since this is not one of the answer choices, I'm wondering if the given length of the side of the square is incorrect?
How much time does Dave spend on the stationary bicycle in a week?
A.
the total number of hours Dave spends on the stationary bicycle each visit
B.
the total number of hours Dave spends on the treadmill each month
C.
the total number of times Dave spent exercising in 10 weeks
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Answers
3. Juan can ride his bike 19.3 miles in 5/3 of an hour. what is the unit rate riding speed
4. Rakelle bought 12/7 pounds of oranges for $2.43. What is the unit rate for her buying oranges? (Write answer as a dollar amount.)
5. Tyler can eat 2/3 of a bag of chips in 6/5 minutes. What is his unit rate for eating chips?
Answers
Answer:
lllllllllll
Step-by-step explanation:
Answers
we know that
It is much easier to compute the number of numbers that do not contain a .
In the first numbers
do not contain a
.
In the first numbers
do not contain a
. (This is because these numbers are formed by selecting a digit out of
for the first position and another digit out of the same set for the last position and this may be done in
In the first numbers, reasoning as above, there are
numbers that do not contain a
.
Now the pattern should be becoming obvious.
In the first numbers there are
numbers that do not contain a
.
So
In the first numbers there are
numbers that do not contain a
.
Thus
the ratio of those numbers that do contain a 3 over the total is equal to
therefore
the answer is
In the first 100 -> 100 - 9 * 9 = 19 (contain a 3).
In the first 10^n -> 10^n - 9^n (contain a 3).
The answer is 3.439 numbers contain a 3 in the first 10.000
1. 1
2. 100/180
3. 50/360
4. 100/360
pls help!!!
Answers
Answer:
100/360
Step-by-step explanation:
A complete turn of a circle is 360 degrees
Therefore, 100 degrees turn is 100 out of 360