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zalisa [80]
3 years ago
11

(-2, 1) is a solution for which of the following equations?

Mathematics
1 answer:
melomori [17]3 years ago
5 0
There is no equation
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Two different sizes of square metal duct are joined by a piece that is a frustum of a pyramid. Find the lateral surface area, if
Allisa [31]

Answer:

288 in²

Step-by-step explanation:

The formula used to solve this question is :

Lateral Surface Area = s( P1 + P2)

Where s = slant height = 2 inches

P1 and P2 = Perimeter of the bases

Perimeter of base 1 = 4 × length of the end of the small square

4 × 17 inches = 68 inches

Perimeter of base 2 = 4 × length of the end of the large square

4 × 19 inches = 76 inches

Lateral Surface Area = 2 × (68 + 76)

= 2 × 144

= 288 in²

8 0
3 years ago
Bruno is 4.5 times as old as Charles if Bruno is 27 how old is Charles
andrey2020 [161]

Answer:

6

Step-by-step explanation:

Bruno(B)= 4.5× Charles(C)

8 0
3 years ago
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IN A CLASS OF 30 STUDENTS 13 OF THEM ARE BOYS WHAT PERCENTAGE ARE GIRLS?
mestny [16]
Class of students - number of students that are boys = numbers of students that are girls

30 - 13 = 17

To change the number of students that are girls into percentage...

17/1 * 1/100 = 17/100

17/100 in a % form = 17%

The percentage of girls in the class is 17%

5 0
3 years ago
Find the common difference of the arithmetic sequence 3, -2, -7
svlad2 [7]

Answer:

-5

Step-by-step explanation:

To find the common difference, take the second term and subtract the first term

-2 - 3 = -5

Check with the third term and the second term

-7 - (-2) = -7 +2 = -5

The common difference is -5

4 0
3 years ago
If 75% of the students in Toby’s grade voted, how many students are in Toby’s grade?
ELEN [110]

Answer:

The total number of students in Toby's grade is 200.

3 0
3 years ago
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