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Brrunno [24]
4 years ago
7

I need help guys. please help me idk it

Mathematics
1 answer:
vlada-n [284]4 years ago
4 0
Solving inequalities is almost the same as solving equalities for basic cases. Only thing you've to watch out for is signs.
For example, in 2x + 3 > 5,
We may subtract 3 from both sides,
2x > 2
Hence, by dividing both sides by 2, we get x>1.

The inequality sign changes on multiplying with (-)
For example, 2 < 6
But, -2 > -6

And when you interchange a fraction
E.g. 3/4 > 2/3
But, 4/3 < 3/2

You can now solve these of your own
Try yourself
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Sveta_85 [38]

Answer:

D) 15/12 and 5/4

Step-by-step explanation:

Because when you cross multiply the ratios

15*4 and 12*5

making both ratios a proportion

they both = 60

3 0
3 years ago
Write 18.766 correct to<br>(a)<br>2 significant fugures​
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Step-by-step explanation:

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The image below shows the graph f(x) = |x| – 4

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5 0
3 years ago
Which of the following DOES NOT have any rectangular faces? A. pentagonal prism B. hexagonal pyramid C. rectangular prism D. squ
BaLLatris [955]

Answer:

Hexagonal pyramid DOES NOT have any rectangular faces

Step-by-step explanation:

Given some solids we have to choose that one which DOES NOT have any rectangular faces

Pentagonal prism has total 7 faces out of which two faces are pentagons and 5 are rectangular.

Hexagonal pyramid is a pyramid with a hexagonal base upon which are erected 6 isosceles triangular faces.

It has no rectangular face.

Rectangular prism is a solid with 6 rectangular faces also known as cuboid.

Square pyramid is a pyramid with 1 square base. As every square is a rectangle.

we can say 1 rectangular face.

Hence, Hexagonal pyramid DOES NOT have any rectangular faces.

Option B is correct.

6 0
4 years ago
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Bill can mow the lawn in 2 hours, his younger brother Tom can mow it in 3 hours. If both brothers mow the lawn together, how lon
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Answer:

1 job / 2 hours + 1 job / 3 hours = 1 job / time it takes for both when working together

time it takes for both when working together = 1.2 hours

Step-by-step explanation:

8 0
3 years ago
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