Which of the following cannot be the side lengths of a triangle?

1 answer:

4 0

To actually form a triangle, the two SMALLEST sides, have to be bigger than the BIGGEST number, when added together.

A.) Can be a triangle
B.)Can be a triangle
C.)Can be a triangle
D.)Can't be a triangle

2+10=12, and 12 is not bigger than 20.

Thus, D, is your answer.

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Help please very important

son4ous [18]

Domain is (-10, infinity) and range is negative infinity, positive infinity.

4 0

2 years ago

Find an equation of the parabola y = ax2 + bx + c that passes through (0, 1) and is tangent to the line y = 4x − 4 at (1, 0).

larisa86 [58]

We are given the following:
- parabola passes to both (1,0) and (0,1)
 - slope at x = 1 is 4 from the equation of the tangent line 

First, we figure out the value of c or the y intercept, we use the second point (0, 1) and substitute to the equation of the parabola. When x = 0, y = 1. So, c should be equal to 1. The parabola is y = ax^2 + bx + 1 

Now, we can substitute the point (1,0) into the equation,
0 = a(1)^2 + b(1) + 1
0 = a + b + 1
a + b = -1 

The slope at x = 1 is equal to 4 which is equal to the first derivative of the equation.
We take the derivative of the equation ,
y = ax^2 + bx + 1
y' = 2ax + b

x = 1, y' = 2
4 = 2a(1) + b
4 = 2a + b 

So, we have two equations and two unknowns, 
2a + b = 4 
a + b = -1

Solving simultaneously,
a = 5 
b = -6

Therefore, the eqution of the parabola is y = 5x^2 - 6x + 1 .

6 0

2 years ago

A circular swimming pool is installed in a rectangular shaped backyard. An underwater light is placed as its center, 16 feet fro

Daniel [21]

What is the question?

8 0

3 years ago

Help pls I no it’s simple but I don’t understand pls look at the pictures or image pls pls number 1 pls

NeTakaya

Answer: The answer would be No, Yes, No.

Step-by-step explanation:

Look at the grid, you can see that it has 100 units in all.