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3 years ago

Please solve and please make sure your correct

Mathematics

1 answer:

Mazyrski [523]3 years ago

3 0

Answer:

(a) The ones that are equivalent to the given fraction are: $\frac{2}{-9}$ and $-\frac{2}{9}$

(b) The one that is equivalent to the given fraction is: $\frac{-8}{-5}$

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3 years ago

Lucia is helping her grandmother make a quilt. They have 4 yards of fabric, which is equal to 144 inches. They need an additiona

lana66690 [7]

Answer:

They need an additional 54 inches of fabric

Step-by-step explanation:

This can be solved by using the unitary method.

Unitary method is that we find the measure of 1 unit and then mulitply it with the required number to get the actual measurement.

4 yards of fabric is equal to 144 inches

1 yard of fabric is equal to 144 inches/4= 36 inches

They need an additional 1 1/2 yards of fabric

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3 years ago

A parabolic listening device is shaped such that the depth of the bowl depends on its radius and can be represented by the curve

faltersainse [42]

Answer:

$\large \boxed{\text{7.428 in}}$

Step-by-step explanation:

$\begin{array}{rcl}D & = & 0.145 r^{2}\\8 & = & 0.145 r^{2}\\55.17 & = & r^{2}\\r & = & \sqrt{55.17}\\& = & \textbf{7.428 in}\\\end{array}\\\text{The radius is $\large \boxed{\textbf{7.428 in}}$ when the depth is 8 in.}$

The graph shows the profile of your parabolic listening device,

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4 years ago

Read 2 more answers