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3 years ago

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Erin received the following scores on her last four spelling tests. 2125, 82%, 0.8, 1720 2125, 82%, 0.8, 1720 Which of these is

Erin's highest score?

1 answer:

AveGali [126]3 years ago

6 0

the highest score is obviously going to be 2125 because that is 100%

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50 POINTS PLS HELP!!!

Viefleur [7K]

Answer:

1.) 90 ways

2.) 15,600 ways

3.) 24 ways

Step-by-step explanation:

1.) Let's say we are given 2 digits not equal to each other...The number of different orderings would be 2*1 = 2, or if we wanted the number of ways to order 2 digits chosen : 10*9 = 90 ways

2.) The number of ways to arrange 3 letters from 26 letters is:

26 Permutes 3 = 26! / (26 -3)! = 26*25*24 = 15,600 ways to choose 3 letters in a certain order

3.) 4 different chores. The number of ways to do them = 4*3*2 *1 = 24 ways

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3 years ago

Has anybody gotten a 100% on their FLVS Math segment exam?

Flura [38]

Answer:

i have

Step-by-step explanation:

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2 years ago

Nicole has the cards shown below. All cards are the same size and shape. She put the cards into a bag. Nicole will pull one card

IgorC [24]

D because 2/3 of the cards are odd and 64 is 2/3 of 94

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2 years ago

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Consider that X=3/4 and y=1/2 which statement is true about X plus Y

ipn [44]

Answer:

1 and 1/4

Step-by-step explanation:

3/4 + 1/2 = 3/4 + 2/4 = 5/4 = 1 1/4

7 0

3 years ago

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How do you find the surface area of a composite figure?

Mekhanik [1.2K]

A composite figure is a figure made up of simple shapes. To find the total surface area of a composite figure, you break up the composite figure into simple shapes whose surface areas you can find using existing formulas. Then you add all the areas of the simple shapes to find the total surface area of the composite figure.

The figure in this problem is a cylinder with a cone on top. The visible areas are: 1) The lower base of the cylinder; 2) The lateral area of the cylinder (the vertical wall all around the cylinder); 3) The lateral area of the cone.

The base of the cone and top base of the cylinder are not visible because they are interior to the composite figure. We only have the three surfaces described above to calculate and add together.

1) The lower base of the cylinder is a circle. We use the formula for the area of a circle using a radius of 4 cm.

$A_{circle} = \pi r^2 = \pi \times (4~cm)^2 = 16 \pi~cm^2$

2) The lateral area of the cylinder is the area of a rectangle whose length is the circumference of the base and whose width is the height of the cylinder.

$A_{lateral~rectanlge} = LW = 2 \pi r \times h = 2 \pi (4~cm)(8~cm) = 64\pi~cm^2$

3) The lateral area of the cone is given by the formula:

$A_{lateral~cone} = \pi r \sqrt{r^2 + h^2}$

$A_{lateral~cone} = \pi \times (4~cm)\sqrt{(4~cm)^2 + (5~cm)^2}$

$A_{lateral~cone} = 4 \pi \sqrt{41} ~cm^2$

To find the total surface area, we add the three surface areas we found above.

$A = 16 \pi~cm^2 + 64\pi~cm^2 + 4 \pi \sqrt{41} ~cm^2$

The exact area is:

$A = (80 + 4 \sqrt{41})\pi ~cm^2$

The approximate area in terms of pi is:

$A = 105.6 \pi~cm^2$

7 0

3 years ago