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2 years ago

6) A geologist collects rocks. He has three types, sedimentary, metamorphic and

Mathematics

1 answer:

rodikova [14]2 years ago

7 0

Answer:

3:5

Step-by-step explanation:

s:m = 2:3

m:i = 9:10

convert m to same number so they are comparable

s:m = 6:9 (multiple so the ratio is still the same as 2:3)

m:i = 9:10 (the same thing as before)

s:i = 6:10

s:i = 3:5 (simplify)

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L. Find the positive square root of each of the following numbers:(a) 36(b) 81(d) 256(c) 196

Yakvenalex [24]

(a)36 = 6
(b)81 = 9
(c)256 = 16
(d)196 = 14

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anzhelika [568]

Answer: A

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6( 5-8x) +12= -54

UkoKoshka [18]

6( 5-8x) +12= -54
30-48x+12=-54 this comes from distributing(multiplying) 6x5 and 6 times -8x
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3 years ago

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Which of the following best describes interval C on the graph shown?

Slav-nsk [51]

Note: The missing graph is attached below.

Answer:

'linear decreasing' best describes interval C on the graph shown.

Step-by-step explanation:

Note: The missing graph is attached below.

From the attached graph, it is easy to figure out that the interval C on the graph shown is showing a straight line. So the graph of the function would be linear.

Also on the interval C, the value of y is decreasing as the value of x increase. So, the slope of the straight line would be negative.

So the interval C indicates that the function is decreasing there.

Therefore, 'linear decreasing' best describes interval C on the graph shown.

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3 years ago

Please answer this correctly

Serggg [28]

Answer:

502 m²

Step-by-step explanation:

We require to find b before calculating the surface area.

The volume (V) of a cuboid is calculated as

V = lbh ( l is length, b is breadth and h is height )

Here V = 510, l = b, b = 10 and h = 3, thus

b × 10 × 3 = 510

30b = 510 ( divide both sides by 30 )

b = 17

--------------------------

The opposite faces of a cuboid are congruent, thus

top/bottom area = 2(17 × 10) = 2 × 170 = 340 m²

front/back area = 2(17 × 3) = 2 × 51 = 102 m²

sides area = 2(10 × 3) = 2 × 30 = 60 m²

Surface area = 340 + 102 + 60 = 502 m²

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3 years ago