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Helen [10]
3 years ago
8

I need help with the problem ​

Mathematics
1 answer:
Reptile [31]3 years ago
3 0
A median i am 100% sure and i am in 11th grade so I can’t be wrong ;)
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Fabio is trying to show his teacher why the product of two rational numbers is another rational number. His first steps are show
Korolek [52]

Answer:a/b x c/d= a x c/b x d

Show that ac and bd are integers

Step-by-step explanation:

7 0
3 years ago
Is xy = yx? Explain how you know
blagie [28]

Answer:

Yes

Step-by-step explanation:

xy=yx because either way, you would end with the same product. For example, if x was 3 and y was 2, you would have (3)(2)=(2)(3), giving you 6=6 which is, in fact, a true statement.

4 0
2 years ago
What is the surface area of this figure?
disa [49]

Answer:

72 sq. mi

Step-by-step explanation:

Breaking this down, we have 2 right triangles with sides of 3, 4, and 5 miles, and 3 rectangles with dimensions 3 x 5, 4 x 5, and 5 x 5 miles. Remember that the area of a triangle is 1/2 x b x h , where b and h are the triangle's base and height. The base and height of the triangles at the bases of the figure are 3 and 4, so each triangle has an area of 1/2 x 3 x 4 = 1/2 x 12 = 6 sq. mi, or 6 + 6 = 12 sq. mi together.

Onto the rectangles, we can find their area by multiplying their length by their width. Since the width of these rectangles is the same for all three - 5 mi - we can make our lives a little easier and just "glue" the lengths together, giving us a longer rectangle with a length of 3 + 4 + 5 = 12 mi. Multiplying the two, we find the area of the rectangles to be 5 x 12 = 60 sq. mi.

Adding this area to the triangle's area gives us a total area of 12 + 60 = 72 sq. mi.

7 0
3 years ago
Read 2 more answers
Given a = -3, b = 4 and c = -5, evaluate a - b - c. -12 -6 -2
KiRa [710]
A - B - C = 
-3 - 4 + 5 = 
-7 + 5 =
-2

negative three minus four plus five is negative two
welcome :/
4 0
3 years ago
A structure covering a sports practice field has the shape of half of a cylinder, as shown. What is the total surface area of th
hoa [83]

wait i dont know why it wont let me comment or see comments but wheres the picture?

3 0
2 years ago
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