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3 years ago

Find the value of c that completes the square for the function f(x)= x2 + 4x + C.

Mathematics

1 answer:

nydimaria [60]3 years ago

7 0

Answer:

$= - 4 \times 2 + 4 \times ( - 4) + c \\ = - 8 - 16 + c \\ = 24 + c \\ \frac{ - c}{ - 1} = \frac{24}{ - 1} \\ c = - 24$

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Please help fast!!

nevsk [136]

Answer:

g(h(- 8)) = 119

Step-by-step explanation:

Evaluate h(- 8), then substitute the result obtained into g(x), that is

h(- 8) = (- 8)² - 2 = 64 - 2 = 62, then

g(62) = 2(62) - 5 = 124 - 5 = 119

6 0

3 years ago

Read 2 more answers

What is the value of x?

Molodets [167]

Answer:

x = 4√5

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Trigonometry

Pythagorean Theorem: a² + b² = c²

Step-by-step explanation:

Step 1: Define

We are given a right triangle. We can use Pythagorean Theorem.

a = 19

b = x

c = 21

Step 2: Find x

Substitute: 19² + x² = 21²
Isolate x term: x² = 21² - 19²
Evaluate: x² = 441 - 361
Subtract: x² = 80
Isolate x: x = √80
Simplify: x = 4√5

And we have our final answer!

8 0

3 years ago

Any unknown or changeable quantity is called a (n)

aleksandr82 [10.1K]

There is little context to go off of but the answer should be variable

4 0

4 years ago

Simplify. 10y(3x – 7z) 30xy – 70yz 103xy – 107yz 30xy – 7z 3x – 70yz

oksian1 [2.3K]

30yx−70yz is your answer

6 0

3 years ago

Read 2 more answers

X =x=x, equals ^\circ ∘ degrees

Andrej [43]

Step-by-step explanation:

x = 145°

we don't even need the upper parallel line with the 35° angle.

it is simply based on the fact that the angles on both sides of 2 intersecting lines have to be the same (just left-right mirrored).

3 0

2 years ago