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4 years ago

7

An inclined plane that moves and has one or two sloping sides forms a machine called a ____.

1 answer:

Cerrena [4.2K]4 years ago

7 0

<span>An inclined plane that moves and has a single or double-sloped side yields a machine known as a ramp. These devices allow wheeled vehicles such as cars or wheelchairs to be slowly moved up a distance vertically. A real-life example is the use of ramp to allow people within wheelchairs to access a bus. </span>

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Randomization in an experiment is important because it ensures that

Alexeev081 [22]

Answer:

C.) each treatment is thought of as a value of the explanatory variable

Step-by-step explanation:

The main purpose for using randomization in an experiment is to control the lurking variable and establish a cause and effect relationship.

If we do not control lurking, or confounding, variables, we cannot accurately establish a cause and effect relationship; this means we cannot ensure that each treatment is a value of the explanatory variable.

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3 years ago

64 times -7/8 minus 1/2

Vesna [10]

$64 \times (- \dfrac{7}{8}) - \dfrac{1}{2}$

$=-56 - \dfrac{1}{2}$

$=-56\dfrac{1}{2}$

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3 years ago

Log 64 = x. Find X<br> ⁴

ozzi

Answer:

3

Step-by-step explanation:

Rewrite the logarithmic notation to index notation.

4^x=64

Change 64 to index notation

ie 64 = 4^3

Since the base is the same(4) cancel them out

You remain with x = 3

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3 years ago

Read 2 more answers

The owner of two hotels is ordering towels. He bought 84 hand towels and 22 bath towels for his hotel in Milford, spending a tot

Dmitrij [34]

Step-by-step explanation:

hand towel is $5

bath towel is $9

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3 years ago

Find the value of x such that the area of a triangle whose vertices have coordinates (6, 5), (8, 2) and (x, 11) is 15 square uni

Serjik [45]

Answer:

$x =12\ or\ -8$

Step-by-step explanation:

Given

$(x_1,y_1) = (6,5)$

$(x_2,y_2) = (8,2)$

$(x_3,y_3) = (x,11)$

$Area = 15$

Required

Find x

The area is calculated as thus:

$Area = \frac{1}{2}|x_1(y_2 - y_3) + x_2(y_3 - y_1) + x_3(y_1 - y_2)|$

Substitute values

$15 = \frac{1}{2}|6*(2 - 11) + 8*(11 - 5) + x(5 - 2)|$

$15 = \frac{1}{2}|6*(-9) + 8*(6) + x(3)|$

$15 = \frac{1}{2}|-54 + 48 + 3x|$

$15 = \frac{1}{2}|-6 + 3x|$

Multiply through by 2

$2 * 15 = \frac{1}{2}|-6 + 3x| * 2$

$30 = |-6 + 3x|$

Remove absolute sign

$30 = -6 + 3x\ or\ -30 = -6 + 3x$

Add 6 to both sides

$36 = 3x\ or\ -24 = 3x$

Divide by 3

$12 = x\ or\ -8 = x$

$x =12\ or\ -8$

<em>So, the coordinates are (-8, 11) or (12,11)</em>

3 0

3 years ago