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ASHA 777 [7]
3 years ago
10

PLEASE HELP!!!

Mathematics
1 answer:
adelina 88 [10]3 years ago
3 0

Answer:

A

Step-by-step explanation:

We find the ratio by dividing two y-values from 2 consecutive x values (1 unit apart). Notice that in the table, all x-values are 1 unit apart. We can choose any pair of consecutive points.

Let's choose: (2,-4) and (1,-2). We divide -4/-2=+2.

Answer A.

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hope it help

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A sport’s fan spent a total of $450 on baseball tickets. if only $4 and $5 tickets were bought, and there was an equal number at
Sindrei [870]
Equal number at each price?
does that mean there were an equal number of 4 dollar as 5 dollar tickets?

alrighty

so 4+5=9

450/9=50

50 four dollar tickets
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3 years ago
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The length of a rectangle is the sum of the width and 4. The area of the rectangle is 32
Sauron [17]

Answer:

The width of rectangle w = 4 units

Step-by-step explanation:

We are given:

Width of rectangle = w

Length of rectangle = w+ 4

Area of rectangle = 32 units

We need to find width of the rectangle

The formula used is: Area\:of\:rectangle=Length\times Width

Putting values and finding width of rectangle

Area\:of\:rectangle=Length\times Width\\32=(w+4)\times w\\32=w^2+4w\\w^2+4w-32=0

We need to solve this quadratic equation to find width (w)

We will use factorisation and break the middle term.

w^2+4w-32=0\\w^2+8w-4w-32=0\\w(w+8)-4(w+8)=0\\(w-4)(w+8)=0\\w-4=0\:or\:w+8=0\\w=4\:or\:w=-8

Since width of rectangle can't be negative, so rejecting w=-8

Therefore, the width of rectangle w = 4 units

4 0
3 years ago
The figures below are made out of circles, semicircles, quarter circles, and a square. Find the area and the perimeter of each f
Rom4ik [11]

Answer:

  • The area of the figure will be 5π/2 in².
  • The perimeter will be 3π + 2 in

Step-by-step explanation:

This figure is a combination of two semi-circles.

  • One having diameter of 2 inches i.e. AD
  • Other having diameter of 4 inches i.e. AC

As

{\displaystyle \pi ={\frac {C}{d}}}

{{{C}}}=\displaystyle \pi.d

Perimeter of the big figure could be computed by cutting the perimeters of each circle in half, and then combing them together.

Area could be computed using the same way.

<u>Calculating the Perimeter:</u>

  • As the circumference of the smaller circle is 2π in. Cutting it half would yield the circumference of the smaller semi-circle i.e. π.
  • As the circumference of the bigger circle is 4π in. Cutting it half would yield the circumference of the bigger semi-circle i.e. 2π.
  • As the length of the segment DC is 2 in.

So, the total perimeter would be: π + 2π + 2 = 3π + 2 in

<u>Calculating the Area</u>

Area could be computed using the same way as we did during measuring perimeter.

As the area of circle is

A={\displaystyle \pi.r^{2}

As we are dealing with semi-circles. So, cutting the diameters of two semi-circles in half can let us find the radii of them.

So,

  • Smaller semi-circle has 1 in radius
  • Larger semi-circle has 2 in radius

Areas would have to be cut in half as well, as we are dealing with semi-circles.

So,

For smaller:

A_{small} =\frac{1}{2} {\displaystyle \pi.r^{2}

A_{small} =\frac{1}{2} {\displaystyle \pi.(1)^{2}

A_{small} =\frac{1}{2} {\displaystyle \pi

Hence, the area of smaller will be: π/2 in²

For larger:

A_{larger} =\frac{1}{2} {\displaystyle \pi.r^{2}

A_{larger} =\frac{1}{2} {\displaystyle \pi.(2)^{2}

A_{larger} =2 \pi^{}

Hence, the area of larger will be: 2π in²

Combining them together:

\frac{1}{2} {\displaystyle \pi^{} + 2 {\displaystyle \pi^{}=\frac{5}{2} {\displaystyle \pi^{}

Therefore,

  • The area of the figure will be 5π/2 in².
  • The perimeter will be 3π + 2 in

<em>Keywords: radius, area, perimeter, semi-circle, circle, diameter, circumference of circle</em>

<em>Learn more about circle measurements from brainly.com/question/3855576</em>

<em>#learnwithBrainly</em>

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D. <em>10.48</em>

<em>correct Answer<3</em>

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