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2 years ago

fine the equation of the line that goes through the point (2,-9) that is parallel to the line with equation y=-3/4x

Mathematics

1 answer:

Andre45 [30]2 years ago

8 0

Answer:

y=6x

Step-by-step explanation:

g=-9/2

c=0

y=-9/2x

3/4x*-9/2

y=6x

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Alexis washes 10 1/2 windows in 3/4 hours. At this rate, how many windows can she wash in one hour?

Zepler [3.9K]

Alexis can wash a total of 14 windows in 1 hour

<h3><u>Solution:</u></h3>

Given that Alexis washes $10\frac{1}{2}$ windows in $\frac{3}{4}$ hours

<u><em>To find: </em></u>number of windows washed in one hour

To simplify the calculations we will convert the given mixed fraction to improper fraction

$\begin{array}{l}{=10 \frac{1}{2}} \\\\ {=\frac{2 \times 10+1}{2}} \\\\ {=\frac{21}{2}=10.5}\end{array}$

Hence, to wash 10.5 windows, Alexis takes 0.75 hours

Let "n" be the number of windows washed in 1 hour

10.5 windows ⇒ 0.75 hours

"n" windows ⇒ 1 hour

By cross-multiplication we get,

$n \times 0.75 = 10.5 \times 1$

$n = \frac{10.5}{0.75} \\\\n = 14$

Thus Alexis can wash 14 windows in one hour

4 0

3 years ago

If there are 18 marbles in a jar and Edgar's absolute guessing error is what was Edgar's original guess?

Anon25 [30]

Answer:

wait what was edgar's absolute guessing error

Step-by-step explanation:

greater than 18, or less than 18

8 0

3 years ago

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(X+3)(x+5)<br><br> Expand and simplify?

bogdanovich [222]

$(x+3)(x+5)$

$x(x+5)+3(x+5)$

$x^2+5x+3x+15$

$\displaystyle x^2+8x+15$

6 0

3 years ago

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Graph the line that has a slope of and includes the point (5, 4).

iVinArrow [24]

Answer:

Heres the answer hope this helps! :)

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2 years ago

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Which of the following methods can be used to find the derivative of y = arcsin x with respect to z ?

vfiekz [6]

Answer:

B) Ill only

Step-by-step explanation:

This is because y = arcsin x can be re-written as sin y = x, We then differentiate sin y = x implicitly with respect to z to obtain

d(siny)/dz = dx/dz

(cosy)dy/dz = dx/dz

dy/dz = (1/cosy)dx/dz

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2 years ago