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3 years ago

Simplify completely: (5x^2 - 21x - 20)/(5x^2 - 16x - 16)

1 answer:

6 0

To simplify the expression (5x^2 - 21x - 20) / (5x^2 - 16x - 16), we can check if there are terms that are needed to be added or subtracted. In this case, there are none. We just check the factors of each polynomial above and below. The factored equation of the numerator is (x-5)*(x + 4/5) while that below is (x-4)* (x + 4/5). In this case, we cancel <span>(x + 4/5). Hence the answer is (x-5) / (x-4)</span>

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Which list correctly orders A, B, and C from least to greatest when A=-8, B = -|6|, and C =|11|

mixas84 [53]

O, C , B , A because the important will disguise the sisomatic amplitude

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3 years ago

FLOORING Miguel is putting hardwood flooring in a hallway that measures 4 feet by 17 feet. The wood he has chosen is $5.48 per s

frozen [14]

A I think yup it's A good luck

Step-by-step explanation:

Miguel is putting hardwood flooring in a hallway that measures 4 feet by 17 feet. The wood he has chosen is $5.48 per square foot

What is the range of the actual cost of putting the flooring in the hallway?

OA) $316.47 and $372.64

OB) $372.64 and $431.55

O C) $362.64 and $382.64

OD) $316.47 and $431.55

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2 years ago

The formula is T = L/S, where T is the time in seconds, L is the length of the tape in inches, and S is the operating speed in i

sashaice [31]

Answer:

Step-by-step explanation:

3 min(60 s/min) = L in / 7.5 in/s

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6 0

3 years ago

Which of the following graphs are absolute value functions? Select all that apply.

anzhelika [568]

In the third graph is absolute value function option (C) is correct after using the concept of graph theory.

<h3>What is co-ordinate geometry?</h3>

Coordinate geometry is defined as the study of geometry using coordinate points.

Coordinate geometry is required to provide a link between algebra and geometry through the use of line and curve graphs.

Given that:

The parent absolute value function is defined as

f(x)=IxI where x is any real number.

The features of the parent absolute value function are :

1. Domain=(-∞,∞).

2. The function decreases on the interval (-∞,0].

3. The function increases on the interval [0,∞).

4. The function is even because f(-x)=f(x) for any value of x.

5. The graph of an absolute value function is a V-shaped unbroken curve.

So, it is a continuous function.

Therefore, the third graphs are absolute value functions.

Learn more about co-ordinate geometry here:

brainly.com/question/28190230

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6 0

2 years ago

Trapezoid QRST has two right angles. A 5-in.altitude can be drawn dividing QRDT into a rectangle and an isosceles right triangle

Vika [28.1K]

Answer:

The area of the trapezoid is 57.5 square inches

Step-by-step explanation:

we know that

The trapezoid QRST can be divided into a rectangle QRDT and an isosceles right triangle RSD

see the attached figure to better understand the problem

step 1

The area of rectangle is given by the formula

$A=((QR)(RD)$

we have

$RD=5\ in$ ----> altitude

$QR=9\ in$

substitute

$A=((9)(5)=45\ in^2$

step 2

Find the area of the isosceles right triangle

The area of triangle is given by the formula

$A=\frac{1}{2}(RD)(DS)$

we have

$RD=DS=5\ in$ ---> because is an isosceles triangle

substitute

$A=\frac{1}{2}(5)(5)=12.5\ in^2$

step 3

Adds the areas

$A=45+12.5=57.5\ in^2$

3 0

4 years ago

Read 2 more answers