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puteri [66]
2 years ago
9

Arrange these units from smallest to largest: decimeter meter kilometer millimeter centimeter nanometer and micrometer

Mathematics
1 answer:
SSSSS [86.1K]2 years ago
6 0
Nanometer, micrometer, millimeter, centimeter, decimeter, meter, kilometer
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If Richard can paint their living room in 4 hours, and Vanessa can paint the same living room in 5 hours, then how long will it
Tju [1.3M]

Answer:

2 hrs 13 mins

Step-by-step explanation:

If Richard can paint the living room in 4 hrs, then in 1 hour he can paint 1/4 of the living .

If Vanessa can paint the living room in 5 hours, then in one hour, she can paint 1/5 of the living room.

In one hour Richard and Vanessa can paint 1/4 + 1/5 = 1/y

y is the number of hours it will take both Richard and Vanessa to paint the living room. 1/y is how much of the house they can paint in one hour.

1/4 + 1/5 = 1/y

(5 + 4)/20. ( find the LCM)

9/20 = 1/y

9y= 20

y = 20/9

y = 2.22hrs

y = 2 hrs 13 mins

4 0
3 years ago
Square root 25a^2. help me pls its a emergency
Vadim26 [7]
5a is ur answer!!!!!
4 0
3 years ago
Please help quickly I don’t understand
bekas [8.4K]

Answer:

15y^5

Step-by-step explanation:

Formula for the area of a rectangle is length times width.

so in this case, it would be 15y^5!! Trust me I just did this!

5 0
2 years ago
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Factor: 4x^2-12x+9=0
Andreas93 [3]
Use formula a^2-2ab+b^2=(a-b)^2

4x^2-12x+9
\\(2x)^2-2(2x)(3)+3^2
\\(2x-3)^2
6 0
3 years ago
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Which of the following is NOT true about a rhombus?
Setler [38]

Answer:

The diagonals are not congruent should be the answer...

Step-by-step explanation:

Might wanna get another opinion but im pretty sure im right.

3 0
2 years ago
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