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Sonbull [250]
3 years ago
5

Please answer correctly !!!!!! Will mark brainliest !!!!!!!!!!!!!

Mathematics
1 answer:
Leni [432]3 years ago
4 0

Answer:

At the time of launch height of the object was 60 meters.

Step-by-step explanation:

An object was launched from a platform and its height was modeled by the function,

h(x) = -5x² + 20x + 60

Where x = time or duration after the launch

At the time of launch, x = 0

So, by putting x = 0 in this equation,

h(0) = -5×(0) + 20×(0) + 60

h(0) = 60

Therefore, at the time of launch height of the object was 60 meters.

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X2 + 2y ÷ w + 3z for w = 2, x = 5, y = 8, and z = 3?
melisa1 [442]

Step-by-step explanation:

w = 2

x = 5

y = 8

z = 3

= x² + 2y ÷ w + 3z

= (5)² + 2(8) ÷ (2) + 3(3)

= 25 + 16 ÷ 2 + 9

= 25 + 8 + 9

= 42

5 0
2 years ago
During summer weekdays, boats arrive at the inlet drawbridge according to Poisson distribution at a rate of 3 per hour. In a 2-h
mrs_skeptik [129]

Answer:

The probability that no boats arrive is 2.48\times 10^{-3}.

Step-by-step explanation:

Poisson distribution:

Poisson distribution is a statistical distribution that helps to find out the probability of a certain is likely occur a specified period of time.

P(X=x)=\frac{e^{-\lambda t}(\lambda t)^x}{x!}

\lambda = rate.

Given that, Poisson distribution at a rate of 3 per hour.

\lambda = 3

t=2

x=0

The probability that no boats arrive is

P(X=0)=\frac{e^{-2\times 3}(2\times 3)^0}{0!}

                =2.48\times 10^{-3}

6 0
3 years ago
Terry burnt a total of 654 calories working out. If Terry does the same workout routine a total of 7 times over the course of th
Flauer [41]

Answer: 4,578

Step-by-step explanation:

654 calories x 7

7 0
2 years ago
How to isolate a variable
Oksana_A [137]

Answer:

The basic technique to isolate a variable is to “do something to both sides” of the equation, such as add, subtract, multiply, or divide both sides of the equation by the same number. By repeating this process, we can get the variable isolated on one side of the equation.

Step-by-step explanation:

5 0
3 years ago
What is the value of a in the equation 3a+b=54 when b=9
klemol [59]
3a + b = 54...when b = 9
3a + 9 = 54
3a = 54 - 9
3a = 45
a = 45/3
a = 15 <===
8 0
3 years ago
Read 2 more answers
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