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3 years ago

What’s the distributive property

Mathematics

2 answers:

Inessa05 [86]3 years ago

7 0

Answer: The distributive property lets you multiply a sum by multiplying each addend separately and then add the products.

Step-by-step explanation: Hope this helps.

Komok [63]3 years ago

5 0

Answer:

According to Google, In abstract algebra and formal logic, the distributive property of binary operations generalizes the distributive law from Boolean algebra and elementary algebra. In propositional logic, distribution refers to two valid rules of replacement.

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2 years ago

Read 2 more answers

If f(x)= -2x²-,find f(0).

IRINA_888 [86]

Answer:

Step-by-step explanation:

f(0) = -2(0)²

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3 years ago

Half-life of Po-210 is 140 days. If the initial mass of the sample is 5

Anna35 [415]

Answer:

$0.625kg$

Step-by-step explanation:

we are given half-life of PO-210 and the initial mass

we want to figure out the remaining mass after 420 days

in order to solve so we can consider the half-life formula given by

$\displaystyle f(t) = a {0.5}^{t/T}$

where:

f(t) is the remaining quantity of a substance after time t has elapsed.
a is the initial quantity of this substance.
T is the half-life

since it halves every 140 days our T is 140 and t is 420. as the initial mass of the sample is 5 our a is 5

thus substitute:

$\displaystyle f(420)=5\cdot{0.5}^{420/140}$

reduce fraction:

$\displaystyle f(420)=5\cdot{0.5}^{3}$

By using calculator we acquire:

$\displaystyle f(420)=0.625$

hence, the remaining sample after 420 days is 0.625 kg

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3 years ago

Find the area of the shaded portion in the equilateral triangle with sides 6.

LUCKY_DIMON [66]

Triangle is equilateral with sides of 6.
Therefore all angles = 60°
Ht of 30-60-90 is 3sr3 = 5.196
Area of 30-60-90 = 1/2×b×h = 3×5.196
Area = 15.59
Pie slice from each corner = 60/360×pi×r^2, with r = 3
1/6×pi×9 = 4.71 × 3 pie slices = 14.13
So, shaded inner region = area triangle - 3 pie corners = 15.59-14.13
= 1.46

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3 years ago

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Step-by-step explanation:

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2 years ago