Convert 36 cm/s to mph

There were 16 more frogs in Green Pond than in Blue Pond. All the frogs from Blue Pond jumped into Green Pond. Now the total num

Dimas [21]

Let the number of frogs in the Blue Pond be x
Blue Pond = x
There were 26 more frogs in Green Pond than in Blue Pond
Green Pond = x + 26
There were 80 frogs altogether
x + x + 26 = 80
2x + 26 = 80
2x = 80 - 26
2x = 54
x = 27
x + 26 = 27 + 26 = 53

There were 53 frogs in the Green Pond originally.

3 0

3 years ago

If an arrow is shot upward on Mars with a speed of 56 m/s, its height in meters t seconds later is given by y = 56t − 1.86t^2. F

makkiz [27]

Answer:

Step-by-step explanation:

Average speed is the change in distance of a body with respect to time. This is expressed as:

$v = \delta y/\delta t\\v = \dfrac{y(t_2)-y(t_1)}{t_2-t_1}$

Given the function of the height in metres expressed as y = 56t − 1.86t² and time interval [1,2]

t₁ = 1sec and t₂ = 2 secs

y(t₂) = 56t₂ − 1.86t₂²

y(2) = 56(2) − 1.86(2)²

y(2) = 112-7.44

y(2) = 104.56

y(t₁ ) = 56t₁ − 1.86t₁ ²

y(1) = 56(1) − 1.86(1)²

y(1) = 56-1.86

y(1) = 54.14

Substituting the derived value into the formula for finding the average speed:

$v = \dfrac{y(t_2)-y(t_1)}{t_2-t_1}\\\\v = \dfrac{104.56-54.14}{2-1}\\\\v = \dfrac{50.42}{1}\\\\v = 50.42m/s$

Hence, the average speed over the given time intervals. [1, 2] is 50.42m/s

4 0

4 years ago

You pay $3.00 to play. The dealer deals you one card. If it is a spade, you get $10. If it is anything else, you lose your money

Alenkinab [10]

no because you're more than likely going to lose your money

4 0

3 years ago

Help meh plz I just need answer question in pic

Yanka [14]

Answer:

A

Step-by-step explanation:

At the vertex, the quadratic term in this notation must be zero, i.e., the (x-1) part. This happens for x=1. So you can already rule out answers C and D.

Now fill in x=-2 in both remaining answers and see what happens.

For A: y = -2(-2 - 1)² + 3 = -15

For B: y = (-2 - 1)² + 3 = 12

That eliminates B and leaves A.

4 0

3 years ago

Please help me A. 7ft B. 11ft C. 15ft D. 10ft

likoan [24]

Answer:

Step-by-step explanation:

Have a good grades and study well sweetie

<h3>answered by: sugaxchim</h3>

4 0

3 years ago

Read 2 more answers