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kramer
3 years ago
13

Use rounding to estimate the product. 11.45 × 5

Mathematics
2 answers:
a_sh-v [17]3 years ago
8 0

Answer:

57.3

Step-by-step explanation:

just rounded up one

WITCHER [35]3 years ago
3 0

Answer:

57.3

Step-by-step explanation:

11.45 x 5 = 57.25

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You have 42 ft. of fencing (1 ft. segments) to make a rectangular garden. How much should each side be to maximize your total ar
Verizon [17]

Answer:

Length=10.5\ ft

Width=10.5\ ft

Area=110.25\ ft^{2}

Step-by-step explanation:

Let

x----> the length of the rectangular garden

y---> the width of the rectangular garden

we know that

The perimeter of the rectangle is equal to

P=2(x+y)

we have

P=42\ ft

so

42=2(x+y)

simplify

21=(x+y)

y=21-x------> equation A

Remember that the area of rectangle is equal to

A=xy ----> equation B

substitute equation A in equation B

A=x(21-x)

A=21x-x^{2}----> this is a vertical parabola open downward

The vertex is a maximum

The y-coordinate of the vertex is the maximum area

The x-coordinate of the vertex is the length side of the rectangle that maximize the area

using a graphing tool

The vertex is the point (10.5,110.25)

see the attached figure

so

x=10.5\ ft

Find the value of y

y=21-10.5=10.5\ ft

The garden is a square

the area is equal to

A=(10.5)(10.5)=110.25\ ft^{2} ----> is equal to the y-coordinate of the vertex is correct

6 0
3 years ago
Describe the end behavior of the function. f(x)=x^3+11x^2+35x+30
Lelechka [254]
To determine end behavior, we only have to look at the leading term.

First, the leading term is positive, so we won't have to negate anything.

The leading term has a power that is odd.

Since the exponent is odd, this means that the function goes to positive infinity as x goes to positive infinity.

This also means that the function goes to negative infinity as x goes to negative infinity.

Those are the end behaviors.

Have an awesome day! :)
4 0
3 years ago
Which letters have more than one line of symmetry?
klemol [59]
The letter 'C' has 2 lines of symmerty
the upper-case 'D' has 2 lines of symmetry
the uper -case 'E' has 2 lines of symmetry
the upper case 'H' has 2 lines of symmetry
the upper case 'I' has 2 lines of symmetry
the small case 'L' has 2 lines of symmmetry
the letter 'O' has infinite lines of symetry
the letter 'x' has 4 lines of symmetry



3 0
3 years ago
Read 2 more answers
2. At a rate of 50 mph, a car travels a distance
Sergio039 [100]

Answer: 480 miles

Step-by-step explanation:

first you divide 600 by 50 and thats the amount of hours.

600 / 50 = 12

then multiply 40 x 12 and you got your answer. :)

40 x 12 = 480 therefore your answer is 480

5 0
2 years ago
<img src="https://tex.z-dn.net/?f=What%20does%20%22%20absolute%20value%22%20mean%3F%3F%20I%27m%20looking%20for%20a%20CLEAR%20ans
Whitepunk [10]

Answer:

absolute value means a number's distance from 0

Step-by-step explanation:

Let's say you have -2 and you want the absolute value of it. -2 on a number line would be 2 places away from zero making it's absolute value 2. The absolute value of a number will never be negative either.

7 0
3 years ago
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