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lina2011 [118]
3 years ago
12

How do you know if a function is increasing or decreasing?

Mathematics
1 answer:
Stolb23 [73]3 years ago
5 0
It would point up if increasing, pointing down if it’s decreasing. I’m not entirely sure
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The bases on a softball field are square. What is the area of each base if one side is 15 inches? Do not write units.
iogann1982 [59]

Area of a square is side length^2

Area = 15^ 2 = 15 x 15 = 225 square inches.

4 0
3 years ago
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What is 16% of 140.
Helga [31]
16% = 0.16

'of' = multiplication

0.16 * 140 = 22.4
6 0
3 years ago
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How many lines are determined by two points?
Nataly [62]
2 lmbo are you ok dude lol 
5 0
3 years ago
So can someone explain how the heck does 4 x 4 x 4 = 64??
sweet-ann [11.9K]

Answer:

it is more like, 4x4=16

16x4=64

Step-by-step explanation:

I know it can be confusing, but you will eventually get it :)

i think you were adding 4+4+4=12, but that is not what you are supposed to do here.

Hope i helped :)

5 0
2 years ago
ABC and ADC are triangles. The area of triangle ADC is 52m^2. Work out the length of AB. Give your answer to 1 decimal place.
emmainna [20.7K]

Answer:

AB = 10.2m

Step-by-step explanation:

Area of triangle ADC = 52m²

AD = 12m, angle D = 102°

Area of triangle ADC = ½ × a × b × sinC

52m² = ½ × 12 × CD × sin102

52 = 6 × CD × 0.9781

CD = 52/(6× 0.9781)

CD = 52/(5.8686)

CD = 8.86m = 8.9m (1 decimal place)

Using Cosine rule to find AC = d

d² = a² + c² -2×a×d ×cosD

d² = 8.9² + 12² - 2×8.9×12× Cos102

Cos102 = -0.2079

d² = 267.61744

d = √(267.61744)

AC = d = 16.4m

For ∆ABC

Using sine rule:

a/sinA = b/sinB

AB/sin46 = AC/sin120

AB/0.7193 = 16.4/0.866

AB = 14.2024 ×0.7193

AB = 10.2m (1 decimal place)

3 0
3 years ago
Read 2 more answers
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