Select the correct answer. if f(x) =

Mathematics

2 answers:

Phantasy [73]3 years ago

6 0

Answer:

A is the correcy asnwer

Step-by-step explanation:

olga55 [171]3 years ago

5 0

Answer:

C. y = - f(x) - 3

Step-by-step explanation:

Given parent function:

f(x) = √x

The graphed is reflection of the parent function over x-axis and translated 3 units down. This is:

y = - f(x) - 3

Correct option is C

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Ella has 0.5 lbs of sugar. How much water should she add to make the following concentrations? Tell Ella how much syrup she will

muminat

Ella has 0.5 lbs of sugar. 75% syrup

Percent of mass = $\frac{mass of solute}{mass of solution} * 100$

Let the mass of solution is x

Given mass of solute = 0.5

percent of mass = 75

75 = $\frac{ 0.5}{x} * 100$

75x = 0.5 * 100

75 x = 50

x = 0.67

Mass of solution = 0.67

Mass of water = mass of solution - mass of solute (sugar)

= 0.67 - 0.5 = 0.17

So 0.17lb of water is added with 0.5lb of sugar to get 0.67lb of solution.

8 0

4 years ago

If f(x) = 7(x - 2) + 4(x + 1), what is f(2)? A. 9 B. 10 C. 12 D. 11

KatRina [158]

Answer:

C) 12

Step-by-step explanation:

These type of questions is basically asking you to replace x with 2. f(x) is the same thing as y = but inside the f(x) is the value of x. So in this case, the numerical value of x is 2. All we need to do is replace x with it's numerical value, 2, and solve the equation.

$y=7(2-2) + 4(2+1)\\y=7(0) + 4(3)\\y = 12$