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3 years ago

A rectangle has a width of 12 ft and a length of 4 ft.

Mathematics

2 answers:

polet [3.4K]3 years ago

8 0

It's A, increased by a factor of 6.

ANTONII [103]3 years ago

6 0

Answer: A. The perimeter is increased by a factor of 6.

Step-by-step explanation:

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Mathew decides to run his first 50K (km) Ultra-Marathon. If 0.62 miles = 1 km, how many miles is Mathew going to run? * (please

kirza4 [7]

Answer:

31 miles

Step-by-step explanation:

If you multiply 0.62 by 50 you will get 31.

Please keep in mind that I am human and make mistakes. This answer could be wrong but this is my opinion on what the answer is.

4 0

3 years ago

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Whats the answer for this question

dezoksy [38]

Answer:

0.00939495805 about 0.01

Step-by-step explanation:

basically solving for arccos(8.5/9.9) in degrees, had to run through calculator

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2 years ago

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Tan x-1/tan x+1=1-cot x/1+cotx

ikadub [295]

$\dfrac{\tan x-1}{\tan x+1}=\dfrac{\frac{\sin x}{\cos x}-1}{\frac{\sin x}{\cos x}+1}=\dfrac{\sin x-\cos x}{\sin x+\cos x}=\dfrac{1-\frac{\cos x}{\sin x}}{1+\frac{\cos x}{\sin x}}=\dfrac{1-\cot x}{1+\cot x}$

6 0

3 years ago

Write an equation of the line that passes through the given points. (-1,5) and (2, - 7)

Vanyuwa [196]

Answer:

The equation of the straight line is 4x +y = 1

Step-by-step explanation:

Step(i):-

Given points are (-1,5) and ( 2,-7)

Slope of the line

$m =\frac{y_{2}-y_{1} }{x_{2} -x_{1} } =\frac{-7-5}{2-(-1)} = \frac{-12}{3} = -4$

slope of the line m = -4

Step(ii):-

The equation of the straight line passing through the point (-1,5) and having slope 'm' = -4

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

y - 5 = -4 ( x-(-1))

y -5 = -4 x -4

4 x + y -5 +4=0

4x +y -1 =0

Final answer:-

The equation of the straight line is 4x +y = 1

6 0

2 years ago

Please help! Quadratic equations!

Alexeev081 [22]

Answer:

$x^2 -2x - 35 =0$

Step-by-step explanation:

Assume that the quadratic term of this equation has no coefficient. One can set the equation up in factored form using the given roots. Then expand the equation and simplify the equation to convert to standard form.

The equation in factored form is the following,

$(x+5)(x-7)=0$

Expand, multiply every term in one of the parenthesis by every term in the other,

$(x+5)(x-7)=0\\\\(x)(x)+(5)(x)-(7)(x)+(-7)(5)=0$

Simplify,

$x^2 +5x -7x -35 =0\\\\x^2 -2x -35=0$

7 0

3 years ago