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bezimeni [28]
3 years ago
9

F(x) = 4x + 7, g(x) = 3x^2 Find (f + g)(x)

Mathematics
1 answer:
kondor19780726 [428]3 years ago
3 0
For the functions f(x) = 4x + 7 and g(x) = -9x + 11, find f(g(0)). For the functions f(x) = 3x2 - 7 and g(x) = -3x2 + 4, find f(g(2)). (Do NOT put commas in large numbers.)
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One leg of a right triangle is five and it's hypotenuse is 10. What is the size of its smallest angle?
galina1969 [7]
I hope this helps you



30 degree = k


60 degree = k square root of 3


90 degree = 2k


hypothenus =10 =>90 degree


one leg = 5 => 30 degree
4 0
3 years ago
Read 2 more answers
What is X and A??? The have to equal the same thing, but one is multiplying and one is adding (picture)
Aleksandr-060686 [28]
X*a = 244  is equation (1)
x+a = 2    is equation (2)

Solve equation (2) for 'a' to get
x+a = 2
a = 2-x
Call this equation (3)

We will plug equation (3) into equation (1)
x*a = 244
x*(a) = 244
x*(2-x) = 244
Notice how the 'a' is replaced with an expression in terms of x

Let's solve for x
x*(2-x) = 244
2x-x^2 = 244
x^2-2x+244 = 0

If we use the discriminant formula, d = b^2 - 4ac, then we find that...
d = b^2 - 4ac
d = (-2)^2 - 4*1*244
d = -972
indicating that there are no real number solutions to the equation x^2-2x+244 = 0

So this means that 'x' and 'a' in those two original equations are non real numbers. If you haven't learned about complex numbers yet, then the answer is simply "no solution". At this point you would stop here. 

If you have learned about complex numbers, then the solution set is approximately 
{x = 1 + 15.588i, a = 1 - 15.588i}
which can be found through the quadratic formula

Note: it's possible that there's a typo somewhere in the problem that your teacher gave you. 

6 0
3 years ago
I only have a few mins, I need help with this.
Evgesh-ka [11]

Answer:

A

Step-by-step explanation:

choose A

4 0
3 years ago
Read 2 more answers
billy stacked six pieces of wood on top of one another if each piece was three quarts of a foot tall how tall was his pile
NemiM [27]

Answer:

9/2 feet

Step-by-step explanation:

This means that the total height is 6 * 3/4 or 18/4=9/2 of a foot.

8 0
3 years ago
Read 2 more answers
The length of the top of a computer desk is 2 1/4 feet longer than it’s width. If it’s width measures y feet, express its length
Lera25 [3.4K]

Answer:

The length as an algebraic expression in y is  y   + (2\frac{1}{4} )  ft

Step-by-step explanation:

The measure of the width of the computer desk = y feet

The measure of the length of the desk = width + 2  1/4 ft

⇒Measure of Length = y   + (2\frac{1}{4} )   ft

Hence, the length as an algebraic expression in y is  y   + (2\frac{1}{4} )   ft

5 0
3 years ago
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