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VashaNatasha [74]
3 years ago
10

Mary throws her Grandma’s favorite crystal dish out the second floor window, which is 6 meters from the ground. She is really up

set and tosses it at 35 meters per second.
Write an equation to represent the situation above.

I really don't understand, I've been trying to understand it but I honestly can't.
Mathematics
2 answers:
EastWind [94]3 years ago
7 0
Y=y1 + v1 + 1/2gt^2

Y= 6m+35m/s^2*t+1/2(9.8m/s^3)t^2
wlad13 [49]3 years ago
4 0

we know that

acceleration due to gravity is 9.8m/s^2

so, we get

a(t)=9.8

and acceleration will always be constant

we know that

integral of acceleration is velocity

so, we can integrate both sides

\int \:a\left(t\right)dt=\int \:9.8dt

v(t)=9.8t+C

we are given

v(0)=35m/s

we can use it and find C

v(0)=9.8*0+C

35=9.8*0+C

C=35

now, we can plug it back

v(t)=9.8t+35

we know that

integral of velocity is height

we can integrate it again

\int \:v\left(t\right)dt=\int \:\left(9.8t+35\right)dt

s(t)=\int \:\left(9.8t+35\right)dt

s(t)=4.9t^2+35t+C

now, we have

s(0)=6

we can use it and find C

s(0)=4.9(0)^2+35(0)+C

6=4.9(0)^2+35(0)+C

now, we can plug back C

C=6

and we get

s(t)=4.9t^2+35t+6.............Answer

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Can someone help me pls
IgorLugansk [536]
250 millilitres

There are 2000 millilitres in 2 litres.
so 2000/8= 250ml

the cup holds 250ml

Hope I helped
6 0
3 years ago
4 congruent kites and connected an inscribed within a rectangle. The rectangle is 4 inches wide and 8 inches long. A greeting ca
AveGali [126]

Given:

A rectangular greeting card uses a geometric design containing 4 congruent kites.

Consider the below figure attached with this question.

Length of card = 8 inches

Width of card = 4 inches

To find:

The area of one kite.

Solution:

The kites are connected to each other as shown below.

The length of a kite is:

\dfrac{8}{2}=4 inches

The width of a kite is:

\dfrac{4}{2}=2 inches

Area of a kite is:

A=\dfrac{1}{2}d_1d_2

Where, d_1,d_2 are diagonals of the kite.

Length and width of a kite are 4 inches and 2 inches respectively. So, the diagonals of a kite are 4 inches and 2 inches.

Using the above formula, we get

A=\dfrac{1}{2}(4)(2)

A=4

The area of a kite is 4 sq. in.

Therefore, the correct option is A.

7 0
3 years ago
Read 2 more answers
Can someone help me please :(
Allushta [10]

the diamiter is 125 meters because

7 0
3 years ago
Lauren drew a triangle. Its sides were 7\text{ mm}7 mm7, start text, space, m, m, end text, 9\text{ mm}9 mm9, start text, space,
kkurt [141]

Answer: The triangle has two angles of 49.99° and one angle of 80.02°

Step-by-step explanation:

We have a triangle with sides of 7mm, 9mm and 7mm

The triangle has two equal sides, so this means that this is a Isosceles triangle.

The angles are

The base of this triangle is the side with 9mm, and the two base angles are equal.

We can find the base angles by drawing a line from the middle of the base to the top vertice, then we will have a triangle rectangle with a hypotenuse of 7mm, a adjacent cathetus of 4.5 mm, and with this two things we can find the base angle by using the relation

cos(a) = adjacent cathetus/hypotenuse = 4.5mm/7mm

a = Acos(4.5/7) = 49.99°

Then in our isosceles triangle we have two base angles of 49.99°

To find the other angle we can use the fact that the 3 inner angles of a triangle adds up top 180°

Then

49.99° + 49.99° + A = 180°

A = 180° - 2*49.99° = 80.02°

8 0
3 years ago
Last year, at Northern Manufacturing Company, 200 people had colds during the year. One hundred fifty- five people who did no ex
Svetach [21]

Answer:

a) P=0.2

b) P=0.1

Step-by-step explanation:

We have a total of 1,000 employees in the company.

Out of this 1,000 employees, 200 had colds. If this proportion allow us to estimate the probability of next year colds, we have:

P(colds)=\frac{200}{1000} =0.2

If we take only the ones that are involved in excercise programs, we have 50 cases of cold out of 500 employees (half of the total employees).

The probabillity of cold for them is then:

P(cold\,|\,exercise)=\frac{50}{500}=0.1

4 0
3 years ago
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