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rodikova [14]
3 years ago
15

A line that includes the point (-8,-3) has a slope of -1/9. What is it’s equation in point-slope form?

Mathematics
1 answer:
yulyashka [42]3 years ago
4 0
Y+3=-1/9(X+8) is the equation
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The length of a rectangle is 3 meters less than 3 times the width. the perimeter is 58 meters. find the width.
diamong [38]
If I'm correct 40.5 meters

5 0
3 years ago
Kelly's new snowboard is 120% longer than her old snowboard. If the new snowboard is 150 cm, how long is her old snowboard?
BabaBlast [244]
12.5 is the correct answer
6 0
3 years ago
Two different numbers are selected simultaneously and at random from the set {1,2,3,4,5,6,7,8,9,10}. What is the probability tha
ehidna [41]

The probability of getting positive difference between the numbers 3 or greater between 1,2,3,4,5,6,7,8,9,10 if two numbers are selected is 28/45.

Given Numbers:{ 1,2,3,4,5,6,7,8,9,10}

We have to find the probability that the positive difference between the numbers selected is 3 or greater.

Probability is the likelihood of happening an event among all the events possible.

Total number of combinations when two numbers are selected from 10 numbers is 10 C 2=10!/2!(10-2)!

=10*9*8!/2*1(8!)

=10*9/2

=45 combinations

Combinations of numbers whose difference will be 3 or more are: (10,7),(10,6),(10,5),(10,4)(10,3)(10,2)(10,1)(9,6)(9,5)(9,4)(9,3)(9,2)(9,1)(8,5)(8,4)(8,3)(8,2)(8,1)(7,4)(7,3)(7,2)(7,1)(6,3)(6,2)(6,1)(5,2)(5,1)(4,1)

Total numbers =28

Probability=numbers/total combinations

=28/45

Hence the probability that two numbers selected gives difference of 3 or more is 28/45.

Learn more about probability at brainly.com/question/24756209

#SPJ4

6 0
2 years ago
Roger was gone camping and need to buy some gear he stand cost $22.65 his sleeping bag cost $9.86And his flashlight cost $5.33 h
Gnoma [55]
Answer:
$7.46

Explanation:
9.86+5.33=15.19
22.65-15.19=7.46
5 0
3 years ago
Read 2 more answers
The half life of a certain tranquilizer in the bloodstream is 36 hours. How long will it take for the drug to decay to 87% of th
Fudgin [204]

<u>Finding the Decay constant(λ):</u>

λ = 0.693 / (half-life)

we are given that the half-life is 36 hours

λ = 0.693 / (36)

λ = 0.01925 /hour

<u>Time taken for 87% decay:</u>

Since decay is first-order, we will use the formula:

t = \frac{2.303}{decay constant}log(\frac{A_0}{A} )

Where A₀ is the initial amount and A is the final amount

Let the initial amount be 100 mg,

the final amount will be 87% of 100

Final amount = 100*87/100 = 87 mg

<em>Replacing the values in the equation: </em>

<em />t = \frac{2.303}{0.01925}log(\frac{100}{87} )<em />

<em />t = \frac{2.303}{0.01925}*0.06<em />

t = 7.18 hours

<em>We used 'hours' as the unit because the unit of the decay constant is '/hour'</em>

Therefore, the drug will decay to 87% of initial dosage after 7.18 hours

7 0
3 years ago
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