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3 years ago

A number is chosen at random from 1 to 25. Find the probability of selecting a number less than 6

Mathematics

1 answer:

kupik [55]3 years ago

7 0

it would be:

5/25 or 20/100 or 20%

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John works two jobs. A weekly pay stub from one job shows an earning of $235.23 and his second pay stub shows a monthly earning

Darina [25.2K]

Answer:

D) $23,400

Step-by-step explanation:

His annual income would equal 52 x his weekly income + 12 x his monthly income = 52 x $235.23 + 12 x $935. 40= about $23,400.

USATestPrep

3 0

4 years ago

Read 2 more answers

Find the value of arc AD

LenaWriter [7]

So hmmm if we use the "intersecting chords theorem", the angle of 93°, is really 1/2 * (arcBC + arcAD)

thus $\bf 93=\cfrac{1}{2}(\widehat{BC}+\widehat{AD})\implies 93=\cfrac{161+\widehat{AD}}{2}
\\\\\\
186=161+\widehat{AD}\implies 186-161=\widehat{AD}$

7 0

3 years ago

Please help me with this problem

kipiarov [429]

Answer:

Option 5.

Step-by-step explanation:

Ok, start with parentheses and then a 6 x inside it.

Then put a mini 3 on top.

7root all of that- you get option 5.

8 0

3 years ago

A bird species in danger of extinction has a population that is decreasing exponentially (A = A0e^kt). Five years ago, the popul

Natalija [7]

Answer:

It'll take approximately 34 years from today.

Step-by-step explanation:

in order to solve this problem we first need to find the rate of change, "k", to do that we will use the given information where the population was 1400 five years ago and its now 1000. Applying this data to the equation gives us:

$A = A_0*e^{k*t}\\1000 = 1400*e^{5*k}\\1400*e^{5*k} = 1000\\e^{5*k} = \frac{1000}{1400}\\ln(e^{5*k}) = ln(\frac{1000}{1400})\\5*k = ln(1000) - ln(1400) \\k = \frac{ln(1000) - ln(1400)}{5} = -0.06729$

We now know the value for "k", we can estimate how many years it will take for the bird population to dip below 100. We have:

$100 = 1000*e^{-0.06729*t}\\e^{-0.06729*t} = \frac{100}{1000}\\ln(e^{-0.06729*t} = \frac{1}{10}\\-0.06729*t = ln(0.1)\\t = -\frac{ln(0.1)}{0.06729} = 34.22$

It'll take approximately 34 years from today.

8 0

4 years ago

Can some one help me understand this???

lesya [120]

Answer: x=40 y=140

Step-by-step explanation:

To work out x:

The angles in a triangle always add up to 180.

You already have one angle which is 50 the bottom left angle is a right angle and right angles always equal 90. To work out x, do 50+90=140 then do 180-140=40.

To work out y:

Angles on a straight also add up to 180.

So as you have figured out what x is (40) you would take it away from 180 to give you y.

180-40=140

Hope this helps :)

8 0

3 years ago