3 years ago

Complete the multiplication table.

Mathematics

1 answer:

Shtirlitz [24]3 years ago

8 0

x 3 ? 128

? 2016 63 32

1 28 7 4

? 72 9 8

That's all I can think of

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SVETLANKA909090 [29]

Answer:

4 cm²

Step-by-step explanation:

Area = ½.bh

b = base (cm²)

h = perpendicular height, i.e. BD (cm²)

$h^{2} = (2 \sqrt{5} )^{2} - (3 \sqrt{2} )^{2} \\ {h}^{2} = 20 - 18 \\ {h}^{2} = 2 \\ h \: = \sqrt{2}$

$b \: = 3\sqrt{2} + \sqrt{2} \\ b \: = 4 \sqrt{2}$

$Area \: = \frac{1}{2} .(4 \sqrt{2} )( \sqrt{2} ) \\ Area \: =4$

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A) write an equation <br> B) x= <br> Picture is above

Monica [59]

Answer: Answer is in the steps

Step-by-step explanation:

The interior angles of a triangle add up to one 180 degrees so they all have to add up to 180 degrees.

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4 years ago

The half-life of Radium-226 is 1590 years. If a sample contains 500 mg, how many mg will remain after 2000 years? Preview mg Giv

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Answer:

$a_{n}$ =209.09 mg

Step-by-step explanation:

given: material= radium

half life= 1590 years

initial mass $a_{0}$ =500mg

we know that to calculate the amount left we use

$a_{n}$ = $a_{0}$ $\left ( 0.5\right )^{n}$

$n=\frac{2000}{1590} = 1.2578$

therefore

$a_{n}$ = $500\times0.5^{1.2578}$

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$a_{n}$ =209.09 mg amount left after 2000 years

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4 years ago

Complete the multiplication table. ​

Complete the multiplication table.