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Alex
2 years ago
12

What formula would you use to calculate the mass of fermium-253 remaining after d days? f(d)=400(0.833)d f(d)=400(0.794)d f(d)=4

00(0.500)d f(d)=400(0.100)d
Mathematics
1 answer:
seraphim [82]2 years ago
4 0

Answer:

f(d)=400(0.794)^d

Step-by-step explanation:

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X is all of the following except.<br> a constant<br> a varlable<br> an expression
DanielleElmas [232]

Answer:

a constant

Step-by-step explanation:

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3 years ago
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Point M is the midpoint of AB . Through point M a line segment XY is drawn, so that both XA and YB are perpendicular to AB . Pro
GaryK [48]

Answer:

See the proof below

Step-by-step explanation:

Let the line AB be a straight line on the parallelogram.

A dissection of the line (using the perpendicular line X) gives:

AY ≅ BX

Another way will be using the angles.

The angles are equal - vertically opposite angles

Hence the line  AY ≅ BX (Proved)

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A skirt originally cost $10. How much will it cost if you sell it in Amazon with 25% mark-up price
san4es73 [151]

Answer:

$20.40

Step-by-step explanation:

20% off means that the new price of the skirt will be 80% of the original price:

$30(100%  – 20%) = $30(80%)

Converting the percent to a decimal gives:

$30(0.8) = $24.00

There is an additional 15% off the sale price of $24.00, so the final price is 85% of the sale price:

$24(100%  – 15%) = $24(85%)

Again converting the percent to a decimal gives:

$24(0.85) = $20.40

5 0
2 years ago
Factor x3 ‒ 11x2 ‒ 7x + 77 by grouping. What is the resulting expression?
shepuryov [24]

Answer:

A. (x^{2}-7)\cdot (x-11)

Step-by-step explanation:

The third order polynomial is factored herein:

x^{2}\cdot (x-11) - 7\cdot (x-11)

(x^{2}-7)\cdot (x-11)

Which represents answer A.

6 0
3 years ago
Please help!!!! i don’t understand any of this and really need it.
astraxan [27]

Answer:

B) 3.2 mi

Step-by-step explanation:

1. The midpoints: midpoint formula = <em>((x₁ + x₂)/2, (y₁+ y₂)/2)</em>

upper = ((6 + -4)/2, (8 + 0)/2) --><em> (1, 4)</em>

lower = ((-8 + 2)/2, (3 + -5)/2) --><em> (-3, -1)</em>

2. Distance: distance formula = <em>√((x₁ - x₂)² + (y₁ - y₂)²)</em>

√((1 + 3)² + (4 + 1)²) = √(16 + 25) = √41 ≈ 6.403... ≈ <em>6.4</em>

3. Scale: 6.4 * 0.5 mi = 3.2 mi

5 0
3 years ago
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