3 years ago

Cuanto es dcneicneen eie neim

Mathematics

2 answers:

svetlana [45]3 years ago

6 0

Answer:

Lo lamento tanto, pero no puedo entender la pregunta puedes decirme cual es para poderte ayudar. :)

Step-by-step explanation:

Nat2105 [25]3 years ago

4 0

Oye perdón pero no entiendo...

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(x+3)(x-5)= in standard form

sammy [17]

Answer:

x^2-2x-15

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5 0

3 years ago

Read 2 more answers

What is the value of the expression 2x² – 5x + 6 when<br> x = -2?

Svet_ta [14]

Answer:

24 is correct answer

Step-by-step explanation:

$2 {x}^{2} - 5x + 6 \\ = 2 {( - 2)}^{2} - 5 \times ( - 2) + 6 \\ = 2 \times 4 + 10 + 6 \\ = 8 + 10 + 6 \\ = 24$

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3 0

3 years ago

A scientist has 100 milligrams of a radioactive element. The amount of radioactive element remaining after t days can be determi

grandymaker [24]

The mass of the first shipment at time t is
$m_{1}=100( \frac{1}{2} )^{ \frac{t}{10}}$

The mass of the second shipment at time t is
$m_{2}=100( \frac{1}{2} )^{ \frac{t-3}{10} }$

At time t, the ratio of m₁ to m₂ is
$\frac{m_{1}}{m_{2}} = \frac{100}{100}. \frac{(1/2)^{t/10}}{(1/2)^{(t-3)/10}} \\ = \frac{(1/2)^{t/10}}{(1/2)^{t/10}}. \frac{1}{(1/2)^{-3/10}} \\ = (1/2)^{3/10} \\ = 0.8123$

Therefore as a percentage,
$\frac{m_{1}}{m_{2}} =100*0.8123 = 81.23 \%$

Answer: B. 81.2%

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3 years ago

What's the solution for y+1/2=3/4

creativ13 [48]