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alexira [117]
3 years ago
7

Write the equation of the line perpendicular to 3x+y=-8 that passes through (-3,1) . Write your answer in slope-intercept form.

Mathematics
2 answers:
murzikaleks [220]3 years ago
3 0
I hope this helps you

vovangra [49]3 years ago
3 0
The perpendicular vector of 3x + y = -8 would be [3, 1]. Thus, you know that the slope would be 1/3 (the vector is in the form of [x, y]).

Use point-slope form with the perpendicular slope and the point (-3, 1):
y - y_1 = m(x-x_1)
y - 1 =  \frac{1}{3}(x + 3)

You can simplify this if you want to (maybe to make it look a bit more "cleaner") and either put it as standard form or slope-intercept form. 
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lidiya [134]
Right answer number 3, think this gonna help u
5 0
3 years ago
If a student was randomly guessing while completing a 20 question multiple choice exam, what is the probability they would score
mario62 [17]

Answer:

you want 4 correct and 16 incorrect

there are 20 questions

each question has four answers, so

P(right answer) = 1/4

P(wrong answer) = 3/4

----

Since you want 4 correct of 20 we have a combination of 20C4

This is a binomial problem where p = 1/4, q = 3/4 and we get

(20 "choose" 4)*(probability correct)^(number correct)*(probability incorrect)^(number incorrect)

putting numbers in we get

(20c4)*(1/4)^4*(3/4)^16

This gives us

~ .189685

Step-by-step explanation:

7 0
3 years ago
At a strawberry stand Luisa paid $4.50 for 2 pounds of strawberries. How much would you expect to pay for five pounds or strawbe
Daniel [21]

<u>Half</u> of 4.50 is 2.25, so for <u>one</u> pound it would be <u>$2.25</u>.

To calculate five pounds, you need to add 2.25+2.25+2.25+2.25+2.25 = <u>11.25</u>.

For <u>five</u> pounds of strawberry's, it would cost <u>$11.25</u>.

Hope this helped !

4 0
3 years ago
Read 2 more answers
Slope from two points: (4, 4) and (7, -2)
BaLLatris [955]

Answer:

2

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
2x to the third power - 4y to the second power-10
SCORPION-xisa [38]
2 (x^3 - 2y^2 -5)

hope this helps

you are trying to factor as much out as possible from each

in this case, it is 2
5 0
3 years ago
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