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maksim [4K]
3 years ago
15

Using the identity sine + cos²0 = 1, find the value of tan 8, to the nearest hundredth, if cos 0 is -0.7 and 8 is in Quadrant II

.​
Mathematics
1 answer:
IRISSAK [1]3 years ago
7 0

Answer:

-1.01

Step-by-step explanation:

cos^2 + sin^2 = 1

0.49 + sin^2 = 1

sin^2 = 0.51

sin = 0.71

tan = sin/cos = 0.71/-0.7 = -1.01

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Amy just put new tires on her car. if the wheels have a diameter of 8 inches, a out how far does the wheel travel in 2 revolutio
Genrish500 [490]

Answer:

50.24 in

Step-by-step explanation:

to find how far it it will go you will need to find the circumference and times it by 2 to find the circumference the formula is 2*pi*radius so you would do 2*3.14*4 and that is 25.12 but since it is 2 revolutions​ you times 25.12 by 2

5 0
3 years ago
A scientist investigates a new substance and finds that at 35° C, 146.2 grams will dissolve in 200.0 grams of water. Which simil
ser-zykov [4K]
I would say choice A
but im not absolutely sure
7 0
4 years ago
72-(63-8) and (72-63)-8
tatyana61 [14]
The Priority is always to parenthesis. It means that in both equations, begin by operating what's inside the parenthesis. Then Subtract what's left.

For the first one you get:
72 - (63-8)
72 - 55
17

For the second one you get:
(72-63)-8
9-8
1

Which mean that The 2 equations are not equal, because 17 \ \textgreater \  1
Hope this Helps! :D
3 0
3 years ago
Read 2 more answers
Two numbers have an HCF of 84 and an LCM of 4620. Both numbers are larger than the
yuradex [85]

Answer:

420 & 924

Step-by-step explanation:

hope it helps!

...

7 0
3 years ago
A " Daily Number " lottery has a three-digit number from 000 to 999. You buy one ticket each day. Your number is 389. a) What is
Pachacha [2.7K]

THIS IS THE COMPLETE QUESTION BELOW;

Daily Number " lottery has a three-digit number from 000 to 999. You buy one ticket each day. Your number is 389.

a) What is the probability of winning next Tuesday and Wednesday

b)You won on Tuesday. What's the probability of winning on Wednesday?

c)You didn't win on Tuesday. What is the probability of winning on Wednesday?

Answer:

a)The probability of winning next Tuesday and Wednesday=1/1,000,000

b)if you won on Tuesday The probability of winning on Wednesday=1/1000=0.001

c)If you didn't win on Tuesday The probability of winning on Wednesday=1/1000=0.001

Step by step Explanation:

In this question we have three-digit number from 000 to 999.irrespective of the number you pick,

The probability that you will win always remains 1/1000, whether you you have been playing for ten years and you didn't win or you have won thrice .

This can be explained with the situation of when you flipp coins, If you flip a fair coin for like ten times and get tails all through in a row, the chance to get that tail on the eleventh time is still 50/50

a)The probability of winning on next Tuesday and Wednesday is calculated as;

P(of winning on next Tuesday)=1/1000

P(of winning on next Wednesday)=1/1000

Then ,P(of winning on next Tuesday and Wednesday)=(1/1000)*(1/1000),

= 1/1,000,000

b) if you won on Tuesday,

P( of winning on Wednesday)= 1/1000.

c) if you didn't win on Tuesday,

P(of winning on Wednesday) = 1/1000.

6 0
3 years ago
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