Any answers to this

Mathematics

1 answer:

bezimeni [28]3 years ago

6 0

For #1 you're just plugging in the numbers that are in the parentheses for x.

For example:
f(2)
Take the given equation to plug in for x:

x^2-4x+5

(2)^2-4(2)+5

And from there you get the answer. Your final answer will look like this:

f(2)=? {the answer you got when you plugged in}

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In the right triangle shown Ac=BC and AB=6 to the square root of 3, how long are each of the legs

Inga [223]

Answer:

6 units

Step-by-step explanation:

I will just assume that you made a typo when typing the question when saying AB is 6√3. Here is the solution if AB = 6√2.

Since it is given that ABC is a right triangle and x labels each of the legs, the triangle is a right isoceles triangle.

Now we can use the right isoceles triangle theorem to solve the problem. This theorem states that if a leg is "x" in a right isoceles triangle, then the hypotenuse is equal to x√2.

Here, the hypotenuse is equal to 6√2. To figure out the legs, you need to solve the equation 6√2 = x√2. It is solved here:

6√2 = x√2 (Divide by √2)

x = 6

The length of the legs are 6 units.

4 0

3 years ago

Write the algebraic expression for : half as much as a number, increased by 5

VladimirAG [237]

Answer:

(n/2)+5

Step-by-step explanation:

With n representing the unknown number, to get half of that number, divide the number by 2. n/2. Then, increase that quotient by 5.