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Aleks04 [339]
3 years ago
8

I need help, this problem is screwing me over

Mathematics
1 answer:
VMariaS [17]3 years ago
4 0

Answer:

  C.  40.5 cm²

Step-by-step explanation:

Use the formula for the area of a trapezoid:

  A = (1/2)(b1 +b2)h

The bases are the parallel sides, 4.5 cm and 9 cm. The height is the perpendicular distance between them, 6 cm. Filling in these numbers, we have ...

  A = (1/2)(4.5 +9)(6) = 40.5 . . . cm²

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For a recent year, 38 more Democrats than Republicans represented a country. If the total number of representatives of the count
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Second question isn't well formatted

Answer:

Number of republicans = 207

Number of democrats = 245

Step-by-step explanation:

Let :

Number of republicans = x

Number of democrats = x + 38

Total number of representatives from the two parties = 452

Tge number of representatives from each party can be calculated thus ;

Number of democrats + number of republicans = total number of representatives

(x + 38) + x = 452

x + 38 + x = 452

2x = 452 - 38

2x = 414

x = 414 / 2

x = 207

Number of republicans = 207

Number of democrats = 207 + 38 = 245

3 0
3 years ago
Yvonne wants to cover the back of her smartphone with a decorative pattern. If the phone's length is 1/2 foot and width is 1/6 f
allochka39001 [22]

Answer:

1/12 square foot

Step-by-step explanation:

Area of the pattern = LEngth * Width

Given the following

Length = 1/2 foot

Width = 1/6 foot

Area of the pattern = 1/2 * 1/6

Area of the pattern  =1/12 square foot

Hence the area that the decorative pattern will cover will be 1/12 square foot

4 0
2 years ago
What are two different ways of factoring -3x - 9? Select all that apply.
sergiy2304 [10]

Answer:

The correct answer is A and C.

5 0
2 years ago
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6^2 + 3 √9 show work
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Answer:

45

Step-by-step explanation:

6^2 + 3√9

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= 45

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2 years ago
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What is 783,264 rounded to the nearest ten thousand
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780,000 if it was at least 785k then you round it to 790k

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