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3 years ago

Harry needs 21 square meters for every 6 wizard cloaks he makes

Mathematics

1 answer:

horsena [70]3 years ago

4 0

Answer:

Harry needs 21 square meters of fabric for every 6 wizard cloaks he makes then Equal ratios = 21/6 = 7/2 = 14/4. Step-by-step explanation: Complete Question is : Complete the table using equivalent ratios.

Step-by-step explanation:

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In right triangle LMN, ∠N is a right angle and cos M = 4685. What is m∠L to the nearest degree?

MakcuM [25]

Cos m = .4685
cos^-1(.4685) = 62 degrees
angle L = 180-90-62 = 28 degrees

3 0

4 years ago

Read 2 more answers

The points ????(0,0), ????(−4,1), ????(−3,5), and ????(1,4) are the vertices of parallelogram OABC Is this parallelogram a

gavmur [86]

Answer:

Yes, parallelogram OABC is a rectangle.

Step-by-step explanation:

The vertices of a parallelogram are O(0,0), A(-4,1), B(-3,5) and C(1,4).

A parallelogram is a rectangle if its any two adjacent sides are perpendicular to each other.

product of slopes of two perpendicular lines is -1.

Formula for slope is

$Slope=\dfrac{y_2-y_1}{x_2-x_1}$

Using the formula we get

$m_{OA}=\dfrac{1-0}{-4-0}=-\dfrac{1}{4}$

$m_{AB}=\dfrac{5-1}{-3-(-4)}=-\dfrac{4}{1}=4$

$m_{OA}\times m_{AB}=-\dfrac{1}{4}\times 4=-1$

It means OA is perpendicular to AB.

Since two adjacent sides are perpendicular, therefore the given parallelogram OABC is a rectangle.

6 0

4 years ago

Please help ASAP!!!!!!!!!!!

nexus9112 [7]

A is the answer because it doesn’t have a repeating x value

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3 years ago

How to solve 4n/5 - 4/7 =64/35

Whitepunk [10]

4n/5-4/7=64/35
4n/5-20/35=64/35
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3 years ago

Calculate the area of a sector with radius 13m and angle 93

pashok25 [27]

Answer:

137.16

Step-by-step explanation:

we have a formular of the area of a sector:

S= pi*(its angle)/360*R^2

so apply to it

S= pi*(93/360)*13^2=137.16

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3 years ago