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Over [174]
3 years ago
9

What is the area of a greeting card that is 1/4 foot wide by 1/3 foot tall

Mathematics
2 answers:
Zepler [3.9K]3 years ago
4 0

Answer:

\frac{1}{12}ft^2

Step-by-step explanation:

\frac{1}{3}×\frac{1}{4}=\frac{1}{12}ft^2

goldfiish [28.3K]3 years ago
4 0
The area is 1/12 ft 2
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(5ab-4a-6)-(4ab-1) find the sum please fast
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Rom4ik [11]

Answer:

Part 1) The domain of the quadratic function is the interval  (-∞,∞)

Part 2) The range is the interval  (-∞,1]

Step-by-step explanation:

we have

f(x)=-x^2+14x-48

This is a quadratic equation (vertical parabola) open downward (the leading coefficient is negative)

step 1

Find the domain

The domain of a function is the set of all possible values of x

The domain of the quadratic function is the interval

(-∞,∞)

All real numbers

step 2

Find the range

The range of a function is the complete set of all possible resulting values of y, after we have substituted the domain.

we have a vertical parabola open downward

The vertex is a maximum

Let

(h,k) the vertex of the parabola

so

The range is the interval

(-∞,k]

Find the vertex

f(x)=-x^2+14x-48

Factor -1 the leading coefficient

f(x)=-(x^2-14x)-48

Complete the square

f(x)=-(x^2-14x+49)-48+49

f(x)=-(x^2-14x+49)+1

Rewrite as perfect squares

f(x)=-(x-7)^2+1

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6 0
3 years ago
a metal strip is being installed around a workbench that is 7 feet long and 3 feet wide. find how much stripping is needed
VikaD [51]

Answer:

20 ft.

Step-by-step explanation:

7 ft and 3 ft.

3*2=6

7*2=14

6+14=20.

5 0
4 years ago
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