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eimsori [14]
3 years ago
11

Evaluate cos pi - sin pi/2 -2 -1 0 1

Mathematics
1 answer:
natima [27]3 years ago
3 0
A) -2

Explanation on pictures

For step 3 where it says Simplify the only thing it has is -2

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A single die is rolled twice. the set of 36 equally likely outcomes is {(1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (1, 6), (2, 1),
Maksim231197 [3]
<span>We need to find the rolls whose sum is greater than 10. By looking at the outcomes, we see that (5,6), (6,5), and (6,6) all have a sum greater than 10. Therefore, there are 3 chances to get a sum greater than 10. Since there are 36 chances overall, the probability of rolling greater than 10 are 3/36 = 1/12.</span>
5 0
3 years ago
3. In a class of 50, the # of people with brown hair is 2 more than 5 times the number of people with red hair. How many
shtirl [24]

Answer:

8 red haired and 42 brown haired

Step-by-step explanation:

I chose a random number to start off with (which is 8) and I multiplied it by 5.

8•5=40 and then you have to add 2, so you get 42.

42+8 = 50

The equation would be (5x+2)+x where 'x' is the number of people with red hair.

3 0
2 years ago
The radius r of a circle is increasing at a rate of 8 centimeters per minute. find the rate of change of the area when r = 39 ce
Vitek1552 [10]
Dr/dt= 8cmM-¹
dA/dt = ?
but A= πr²
so dA/dr =2πr
but recall
dA/dt = dA/dr • dr/dt
dA/dt = 2πr • 8cmM-¹
dA/dt = 2×π×39 ×8 = 624cm²M-1
7 0
3 years ago
The oil painting is 90% off. it is now $17. what was the original price?
lutik1710 [3]

Answer:

Let us assume that the original purse is $100. The price after the first reduction is $80. After the second reduction the price is now $56.

Step-by-step explanation:

hope this helps

7 0
2 years ago
Find the product of 51 and -2.5.
yaroslaw [1]
The answer is C because 51×-2=-102 and 51×-0.5=-25.5

So it -102+(-25.5) or C
6 0
3 years ago
Read 2 more answers
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