All categories

3 years ago

How many seconds after the egg is thrown will it be 10ft from the ground

Mathematics

1 answer:

PilotLPTM [1.2K]3 years ago

3 0

Answer:

1.58

Step-by-step explanation:

Okay. We're solving for t because we need to know how many seconds. From the problem, we know the height (10), but we don't know when that height happens.

We can factor by multiplying -16 by 61 first to get -976 and see what multiplies to get -976 AND adds to get -7 at the same time. But we can also use the quadratic formula because, let's be honest, factoring can be a lot of extra work.

Plug both the plus and the minus versions into your calculator and...

There's no such thing as negative time, so -2.02 is automatically disqualified, leaving 1.58 as the answer.

Hope this helps, let me know if I missed anything!

You might be interested in

Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week. A sample of

Aleks [24]

Answer:

CI for 90% = ( 16.34, 18.66)

Therefore at 90% confidence interval (a,b) = ( 16.34, 18.66)

And,

CI for 95% = ( 16.11, 18.89)

Therefore at 95% confidence interval (a,b) = ( 16.11, 18.89)

Step-by-step explanation:

Answer: = ( 2.64, 3.14)

Therefore at 95% confidence interval (a,b) = ( 2.64, 3.14)

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x+/-zr/√n

Given that;

Mean x = 17.5

Standard deviation r = 5.7

Number of samples n = 65

Confidence interval = 90% and 95%

z(at 90% confidence) = 1.645

z(at 95% confidence) = 1.96

Substituting the values we have; for 90%

17.5+/-1.645(5.7/√65)

17.5+/-1.645(0.707)

17.5 +/- 1.16

= ( 16.34, 18.66)

Therefore at 90% confidence interval (a,b) = ( 16.34, 18.66)

Substituting the values we have; for 95%

17.5+/-1.96(5.7/√65)

17.5+/-1.96(0.707)

17.5 +/- 1.39

= ( 16.11, 18.89)

Therefore at 95% confidence interval (a,b) = ( 16.11, 18.89)

3 0

3 years ago

What is 1(4x+7y)+2(5y-9x)

patriot [66]

1(4x+7y)+2(5y-9x)
=4x+7y+10y-18x
=-14x+17y

The solution is -14x+17y.

3 0

3 years ago

Jarry is making a strawberry smoothie which measure is greatest the amount of milk cottage cheese or strawberry

Stells [14]

Answer:

Milk

Step-by-step explanation:

The amount of milk, cottage cheese and strawberries used are given in the attached picture.

3/4 cup of milk

2/6 cup cottage cheese

8/12 cup strawberry

Converting the fractions to decimal :

3/4 cup of milk = 0.75

2/6 cup cottage cheese = 0.3333

8/12 cup strawberry = 0.66666

0.75 > 0.6666 > 0.3333

We can conclude that amount of milk is greatest, then strawberry and the least is cottage cheese.

8 0

3 years ago

a building is 2ft from a 12 ft fence that surrounds the property a worker wants to wash a window in the building 17 ft from the

NikAS [45]

Check the picture below.

so, that'd be 20.24845673131658693325, and to the nearest tenth it'd then be 20.2

8 0

3 years ago

Y dont know the answer, can you please help me?

sukhopar [10]

Answer:

it is a

Step-by-step explanation:

3 0

3 years ago