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tatyana61 [14]
3 years ago
13

I don’t know how to answer this

Mathematics
1 answer:
Vladimir [108]3 years ago
4 0

Answer:

Triangle with Blue shape inside.  All of the other shapes are divided up in to triangles.  The triangle on bottom (with blue shape inside) is divided up into polygons.

Step-by-step explanation:

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In a sample for a survey, each person has the same chance of being chosen.
garri49 [273]

Answer:

Random (C)

Step-by-step explanation:

It is not biased, and its not pouplation.

Its not poup. because it never gives any other details

It's not biased because it represents the pouplation and is random so hence its random

4 0
3 years ago
Four coins are flipped. what is the probability that there will be exactly two heads
alekssr [168]
Hope this helps you!

4 0
3 years ago
A teacher covered the exterior of a rectangular prism-shaped box that measured 8 inches by 9 inches by 10 inches using one sheet
Ahat [919]

Answer:

380 square inches

Step-by-step explanation:

We are given the measurements of the Rectangular Prism as

8 inches by 9 inches by 10 inches

Where based on the order of arrangement:

8 inches = Length

9 inches= Width

10 inches = Height

Step 1

Find the amount of wrapping paper needed

Perimeter = 2L + 2W

= 2 × 8 + 2 ×9

= 16 + 18

= 34 inches

Base = L × W

= 8 × 9

= 72 inches

Surface Area of the Rectangular Prism =PH + 2B

Where P = Perimeter

H = Height

B = Base

= 34 × 10 + 2× 72

= 340 + 144

= 484 square inches

The area of the Rectangular prism = 484 square inches

Step 2

So we were told that she used wrapping paper the measured 2 feet by 3 feet.

We would convert the values in feet to inches

1 ft = 12 inches

Length = 2 ft = 2 × 12 = 24 inches

Width = 3 ft = 3 × 12 = 36 inches

We find the area of the wrapping paper

Length × Width = 24inches × 36 inches = 864 square inches.

Step 3

The amount of square inches of wrapping paper left over is calculated as:

Area of the wrapping paper used - Area of the Rectangular prism

= 864 square inches - 484 square inches

= 380 square inches.

Therefore, the amount of square inches of wrapping paper left over is 380 square inches.

5 0
3 years ago
Emily bought 12 oranges from store to make orange juice. The total cost was $15. How much would it have cost if she only bought
frutty [35]

Answer:

$11.25

Step-by-step explanation:

12/15=9/x

x=45/4

x=$11.25

4 0
2 years ago
Read 2 more answers
The function f(x)=2x+1 is defined over the interval [2, 5]. If the interval is divided into n equal parts, what is the value of
vodomira [7]

Answer:

  D.  5 +6k/n

Step-by-step explanation:

The width of the interval is (5 -2) = 3. The width of one of n parts of it will be ...

  3/n

Then the difference between the left end point of the interval and the value of  x at the right end of the k-th rectangle will be ...

  k·(3/n) = 3k/n

So, the value of x at that point is that difference added to the interval's left end:

  2 + 3k/n

The value of the function for this value of x is ...

  f(2 +3k/n) = 2(2 +3k/n) +1 = (4 +6k/n) +1

  = 5 +6k/n

4 0
3 years ago
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