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3 years ago

A wheelchair ramp rises 1.5 feet for every 18 feet of horizontal distance it covers. Find the rate of chance of the ramp.

Mathematics

1 answer:

Svetach [21]3 years ago

6 0

<span>This question can not be answered because the horizontal distance covered is not specified.</span>

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2x^-2 y^-2 if x = 3 y = -2

wariber [46]

Answer:

2(3)^-2(-2)^-2

2 x 1/9 x 1/4

2/36= 1/18

Step-by-step explanation:

5 0

3 years ago

Hester sells televisions. She earns a fixed amount for each television and an additional $15 if the buyer gets an extended warra

beks73 [17]

Answer: $\$ 70$

Step-by-step explanation:

Given

Hester get a fixed amount and an additional $15 for an extended warranty

Suppose x is the amount of fixed amount

for 15 television sale, the price is $1275

Thus, we can write

$\Rightarrow 15(x+15)=1275\\\Rightarrow x+15=85\\\Rightarrow x=\$70$

Therefore, the fixed amount of television is $\$70$

6 0

3 years ago

Which of the following is the equation of a line perpendicular to

slega [8]

Answer: $y = -2x - 3$

Step-by-step explanation:

Two lines are said to be perpendicular if the product of their slope = -1

Given :

$4y = 2x + 5$

to find the slope , we will write it in the form : $y = mx + x$

That is

$y = \frac{2}{4}x + \frac{5}{4}$

$y = \frac{1}{2}x + \frac{5}{4}$

which means that the slope = $\frac{1}{2}$

any line that is perpendicular to this line will have slope = -2

using the formula :

$y - y_{1} = m (x-x_{1})$ , we have

$y - (-1) = -2 ( x -(-1) )$

$y + 1 = - 2 ( x + 1 )$

$y + 1 = -2x - 2$

$y = -2x - 2 - 1$

$y = -2x - 3$

8 0

3 years ago

What are the roots of the polynomial equation x cubed minus 5 x + 5 = 2 x squared minus 5?

Dennis_Churaev [7]

Roots of the polynomial $x^3-5x+5=2x^2-5$ are $x=\sqrt{5},x=-\sqrt{5}\,\,and\,\,x=2$

Step-by-step explanation:

We need to find roots of the polynomial equation: $x^3-5x+5=2x^2-5$

Solving the polynomial to find roots:

$x^3-5x+5=2x^2-5\\Rearranging:\\x^3-5x+5-2x^2+5=0\\x^3-2x^2-5x+10=0$

Finding factors by grouping:

$(x^3-2x^2)(-5x+10)=0\\Finding\,\,common\,\,terms:\\x^2(x-2)-5(x-2)=0\\(x^2-5)(x-2)=0\\x^2-5=0\,\,and\,\,x-2=0\\x^2=5\,\,and\,\,x=2\\x=\pm \sqrt{5}\,\,and\,\,x=2$

So, roots of the polynomial $x^3-5x+5=2x^2-5$ are $x=\sqrt{5},x=-\sqrt{5}\,\,and\,\,x=2$

Keywords: Roots of Polynomial

Learn more about Roots of Polynomial at:

#learnwithBrainly

8 0

3 years ago

Two functions, A and B, are described as follows: Function A y = 9x + 4 Function B The rate of change is 3 and the y-intercept i

diamong [38]

Answer:

The answer to this problem is 6.

Step-by-step explanation:

5 0

2 years ago