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3 years ago

11

Find the probability that a

1 answer:

weeeeeb [17]3 years ago

3 0

Answer:0.25

Step-by-step explanation:

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If 8 g of a radioactive substance are present initially and 2 yr later only 4 g remain, how much of the substance will be presen

My name is Ann [436]

Answer:

none

Step-by-step explanation:

8-4=4

if every 2 years, 4 gallons disappear

then every 1 year, 2 gallons disappear

meaning that by 5 years there will be no substance left.

(5*2=10)

7 0

3 years ago

Pleas help me find the answer and show the work to this question

lions [1.4K]

Answer:

$Leg\ 1 = 8$

$Leg\ 2 = 15$

Step-by-step explanation:

Given: See Attachment

Required

Determine the length of the legs

To do this, we apply Pythagoras theorem.

$Hyp^2 = Adj^2 + Opp^2$

In this case:

$17^2 = x^2 + (2x- 1)^2$

Open Bracket

$17^2 = x^2 + 4x^2- 2x-2x + 1$

$17^2 = 5x^2 - 4x + 1$

$289= 5x^2 - 4x + 1$

Collect Like Terms

$5x^2 - 4x + 1 - 289 = 0$

$5x^2 - 4x - 288 = 0$

Solving using quadratic formula:

$x = \frac{-b\±\sqrt{b^2 - 4ac}}{2a}$

So:

$x = 8$ or $x = -7.2$

Since, x can't be negative, then:

$x = 8$

One of the leg is:

$Leg\ 1 = x$

$Leg\ 1 = 8$

$Leg\ 2 = 2x - 1$

$Leg\ 2 = 2*8 - 1$

$Leg\ 2 = 16 - 1$

$Leg\ 2 = 15$

6 0

3 years ago

5/6 divided by 3/4 <br> Thanks for any help

sweet-ann [11.9K]

Answer:

20/18

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

18.88 divided by 1.6

dybincka [34]

18.88 divided by 1.6 is 11.8.

3 0

4 years ago

Read 2 more answers

Emily is buying a retirement home. The purchase price of the house is $114,500.00. She will put 15% down.

pentagon [3]

Her down payment will be

8 0

3 years ago