4 years ago

F(x) = x + 7, g(x) = x - 7 (a) (f + g)(x) = (b) (f-g)(x)= (c) (fg)(x)= (d) (f/g)(x)=

Mathematics

1 answer:

Vlada [557]4 years ago

7 0

a) 2x

b) 14

c) x^2 -49

d) -1

You might be interested in

Jeff uses 3 fifty-size strips to model 3/5. He wants to use tenth-size strips to model an equivalent fraction. How many tenth-si

UNO [17]

He will need 6 tenth-size strips.

6 0

3 years ago

Read 2 more answers

Simplify the expression. (7-6)(-1) -7 +0 -7- 7-6 7+ c

My name is Ann [436]

Answer:

7+c or 6

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Steven buys 2.32 pounds of trail mix and twice as many pounds of dressed fruit. What is the total?

kati45 [8]

Answer:

4.64

Step-by-step explanation:

You multiply 2.32 by 2

2.32*2 = 4.64

6 0

3 years ago

Paul [167]

Answer: D. 3/2

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Consider the quadratic equation x squared = 4x - 5. how many solutions does the equation have?

snow_lady [41]

Answer:

The quadratic equation has two complex solutions

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^{2}=4x-5$

Equate to cero

$x^{2}-4x+5=0$

$a=1\\b=-4\\c=5$

substitute in the formula

$x=\frac{4(+/-)\sqrt{-4^{2}-4(1)(5)}} {2(1)}$

$x=\frac{4(+/-)\sqrt{16-20}} {2}$

$x=\frac{4(+/-)\sqrt{-4}} {2}$

Remember that

$i^{2}=-1$

$x=\frac{4(+/-)2i} {2}$

$x=2(+/-)i$

therefore

The quadratic equation has two complex solutions

5 0

3 years ago