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elena-s [515]
3 years ago
11

Which statements are true about the rules of multiplication for signed numbers? Check all that apply.

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
4 0

Answer:

i think that 1, 3 and 4 are correct !!

Step-by-step explanation:

youre welcome, have a nice day!

NOTE: next time please provide the list of choices so it can be easier to help you

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Mary is an years old. What expression represents her age 7 years from now? Two years ago?
Rudiy27

Answer

What expression represents her age 7 years from now?

y =x+7x

Two years ago?

z=y-2x

Step-by-step explanation:

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3 years ago
Which could be the name of a line? A.R B. D C. m D. Rs
MrMuchimi
Hi there!

The answer is C. m
The name of a line is always a lower-case letter (e.g. m, k or any other letter from the alphabet).
4 0
3 years ago
Read 2 more answers
Will mark most brainlest if correct
lutik1710 [3]

Answer: each guest gets 4.19 cm²

Step-by-step explanation:

The cake is a circle. The area which he cuts for himself is a sector with a central angle of 120 degrees. The formula for determining the area of a sector is expressed as

Area of sector = θ/360 × πr²

Where

θ represents the central angle

π is a constant whose value is 3.14

r represents the radius of the circle.

From the diagram,

r = 4cm

Therefore, area of the cake that he cut for himself is

120/360 × 3.14 × 4²

= 16.75 cm²

The total area of the cake is

3.14 × 4² = 50.24 cm²

Therefore, the rest of the cake is

50.24 - 16.75 = 33.49 cm²

The amount that each guest gets would be

33.49/8 = 4.19 cm²

8 0
3 years ago
In a fruit cocktail, for every 15 ml of orange juice you need 5 ml of apple juice and 50 ml of coconut milk. What is the ratio o
zmey [24]

Answer:

1:10:3

Step-by-step explanation:

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3 years ago
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Answer:

x+2 x+2 x+2

Step-by-step explanation:

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