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Nadya [2.5K]
3 years ago
10

How much will it cost to mail a first-class letter that weighs 2.8 oz?

Mathematics
1 answer:
Fittoniya [83]3 years ago
7 0
The only sensible answer would be b

hope this helps

have a good day
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One vertex of a polygon is located at (3, –2). After a rotation, the vertex is located at (2, 3). Which transformations could ha
slamgirl [31]
The vertex has a rotation (3,-2) --> (2,3). 
Or in x and y coordinates, (x,y) --> (-y,x).
The rotation that has this said rule is R0, 90°. And 90° is equal to –270°. 
The answers are:
R0, 90°
R0, –270°.
Additional information:
R0, 180° has the rule (x, y) → (-x, -y)
R0, 270° and R0, –90° has the rule  (x, y) → (y, -x).
3 0
3 years ago
Read 2 more answers
1.Find the side of a cube whose surface area is 5400 square.cm?
Marta_Voda [28]

Answer:

30 cm

Step-by-step explanation:

Step 1: The surface area of  a cube = 6a^2, where "a" is the side of the cube.

Step 2: We are given surface area of a cube = 5400.

Step 3: Now plug in the surface area of the cube = 5400 and simplify.

5400 = 6a^2

a^2 = 5400/6

a^2 = 900

Now take square root on both sides, we get

a = √900

a= 30 cm

Therefore, the side of the cube is 30 cm.

Thank you.

7 0
3 years ago
A cube has volume of 8 cubic inches. what is the length of each of the cube?
schepotkina [342]

Answer:

2

Step-by-step explanation:

2x2x2x2 is 8

4 0
3 years ago
Find each of the following products of conjugate pairs.See if you can work out a pattern
yKpoI14uk [10]

Answer: is 0

Step-by-step explanation:

4 0
3 years ago
Solve the system of equations.<br> Must find x, y, and z.<br> Help.
valina [46]

Answer:

x = -1 and y = 2 and z = 1

Step-by-step explanation:

This website can help:

https://www.wolframalpha.com/widgets/view.jsp?id=83d5da9f6682ad1b6002473f314c3b4f

7 0
4 years ago
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