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Airida [17]
3 years ago
7

What is the real square root of -64

Mathematics
1 answer:
aliina [53]3 years ago
8 0

Answer:

8i

Step-by-step explanation:square root sign(/) just go with it ok so /64 would be 8 and /-1, -1 turns into i so 8i


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Someone help me please:)
Kryger [21]

Answer:

a. The time to strike the ground is 5 seconds

b. The time for the ball to be over than 96 ft is 1 second

Step-by-step explanation:

a. When the ball thrown vertically up ward to reach its maximum height at velocity = 0 then complete its motion vertically down ward to strike the ground its displacement = zero

∴ s(t) = 0 ⇒ 80t-16t^{2}=0

∴16t(5 - t) = 0

5 - t = 0⇒ ∴ t = 5 seconds

b. To tind the time that the ball will be over 96 ft over the ground substitute in s(t)=80t-16t^{2}

96=80t-16t^{2}

16t^{2}-80t+96=0

16(t^{2}-5t+6)=0

16(t-3)(t-2)=0

t = 3 sec. and t = 2 sec.

The ball will be at height 96 ft at time 2 sec. and 3 sec.

So the ball will be at height over than 96 = 3 - 2 = 1 sec.

8 0
3 years ago
160 bananas; 20% decrease
rusak2 [61]

Answer:128



Step-by-step explanation:


3 0
3 years ago
Read 2 more answers
The roster form of The set of odd natural numbers greater than or equal to 5 and less than or equal to 11 .
Lunna [17]

Answer:

{5, 7, 9, 11}

Step-by-step explanation:

Roster form just means list the elements of the set in the brackets.

It says the elements are greater than or equal to five and less than or equal to 11. So we start at 5 and end at 11.

We list {5, 7, 9, 11} because these elements follow the rule that they must be odd natural numbers. Natural numbers are the numbers you can count starting from 0 like {0, 1, 2, 3, ...}.

4 0
3 years ago
The probability of getting a head is 0.3 find the probability of getting a tail
ratelena [41]

Answer: 0.7


Step-by-step explanation:

p(tail) + p(head) = 1

p(tail) = 1 - p(head)

p(tail) = 1 -0.3

p(tail) = 0.7





mark the brainliest plzz



6 0
3 years ago
1. What is 1/6 plus 2/6?<br><br> 2. What is 4/8 plus 1/8?<br><br> 3. What is 2/3 plus 2/3?
Anon25 [30]
<span>1. What is 1/6 plus 2/6?
          1/6 + 2/6 = 3/6 =1/2

2. What is 4/8 plus 1/8?
           4/8 + 1/8 = 5/8

3. What is 2/3 plus 2/3?
          2/3 + 2/3 = 4/3 = 1 1/3</span>
3 0
3 years ago
Read 2 more answers
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