Answer:
I think the answer is D.
Step-by-step explanation:
Well, if you look at the last few sentences in that picture, it says that "he earns money depending how long he babysits." It's a clue to the answer, so the answer is obviously D.
I am also sorry if my answer is wrong. It might be c but please comment on my answer if you disagree/think it's wrong.
Answer:
![t=1.25\ sec](https://tex.z-dn.net/?f=t%3D1.25%5C%20sec)
Step-by-step explanation:
we have
![h(t)=-16t^{2}+20t](https://tex.z-dn.net/?f=h%28t%29%3D-16t%5E%7B2%7D%2B20t)
where
t is the time in seconds
h is the dolphin's height in feet
we know that
When the dolphin return to the water the value of h(t) is equal to zero
so
For h(t)=0
![0=-16t^{2}+20t](https://tex.z-dn.net/?f=0%3D-16t%5E%7B2%7D%2B20t)
![16t^{2}=20t](https://tex.z-dn.net/?f=16t%5E%7B2%7D%3D20t)
Simplify
![16t=20](https://tex.z-dn.net/?f=16t%3D20)
![t=\frac{20}{16}](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B20%7D%7B16%7D)
![t=\frac{5}{4}=1.25\ sec](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B5%7D%7B4%7D%3D1.25%5C%20sec)
see the attached figure to better understand the problem
Answer:
c 15
Step-by-step explanation:
Tangent AB is tangent to circle D at point A. The angle made by a tangent to a circle and a radius of the circle at the point of tangency is a right angle. That means that angle is a right angle, and triangle ABD is a right triangle.
We can use the Pythagoren theorem.
a^2 + b^2 = c^2
x^2 + 20^2 = (x + 10)^2
x^2 + 400 = (x + 10)(x + 10)
x^2 + 400 = x^2 + 10x + 10x + 100
400 = 20x + 100
20x = 300
x = 15
Answer:
12.6 ft (3 s.f.)
Step-by-step explanation:
Please see the attached picture for full solution.
Some examples of additions with integers with 5 terms or more are:
- 20 + 1 + 1 + 2 + 1= 25
- 2 + 1 + 1 + 2 + 1= 7
- 20 + 2 + 1 + 2 + 1= 26
- 20 + 1 + 1 + 3 + 1= 26
- 20 + 1 + 1 + 4 + 1= 27
- 200 + 1 + 1 + 2 + 1= 205
<h3>What is an Integer?</h3>
In mathematics, an integer is a whole number that is used to represent a value and is not a fraction.
Furthermore, we can make the addition of integers as they would increment based on the number they are being incremented with and this has been shown above.
Read more about integers here:
brainly.com/question/17695139
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