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SCORPION-xisa [38]
3 years ago
14

Help please see picture

Mathematics
1 answer:
kondaur [170]3 years ago
5 0

Answer:

B: 6/4 or 1 2/4

Step-by-step explanation:


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Suppose that 30% of students prefer to write with a mechanical pencil. suppose we sample students, one at a time, and stop as so
tia_tia [17]
Probability that first student  prefers mechanical pen = 0.30
 P(first student does not and second student does) = 0.70 * 0.3 =  0.21)

P( selecting 2 or fweer) = 0.30+ 0.21) = 0.51  or 51%
6 0
3 years ago
2x-y=3<br> -x-y=3 <br><br> what does this equal system of equations
Jet001 [13]

Topic : Linear equations in two variables.

Given :

  • 2x - y = 3 ––– (i)
  • - x - y = 3 ––– (ii)

Solution :

Now,

(i) – (ii)

\qquad \sf \: { \dashrightarrow 2x - y - ( - x - y) = 3 - 3}

\qquad \sf \: { \dashrightarrow 2x - y  +  x  + y) = 3 - 3}

\qquad \sf \: { \dashrightarrow 3x = 0}

\qquad \bf \: { \dashrightarrow x = 0}

Now, substituting the value of x in Eq (i) :

\qquad \sf \: { \dashrightarrow 2x - y = 3 }

\qquad \sf \: { \dashrightarrow 2(0)- y = 3 }

\qquad \sf \: { \dashrightarrow 0- y = 3 }

\qquad \bf \: { \dashrightarrow  y =  - 3 }

Therefore,

  • <u>The value of x = 0 and y = -3</u>
3 0
2 years ago
Which is an equation of a circle with center (2, -10) and radius 3?
Ilya [14]
C.(x-2)^2+(y+10)^2=9, plug the numbers in the original formula.
6 0
3 years ago
Ur. What is Akiko's unit rate in miles per hour?
artcher [175]

Answer:

Step-by-step explanation:

pic do you have

7 0
3 years ago
Pabalo is training for a race. His goal is to run 8.5 miles over the next 3 days. This distances he ran each day are shown in th
goblinko [34]

Answer:

He ran a total of 8.439 miles. Over the three days he ran less than he needed to for his goal, he has to run 0.061 more miles to gain his goal

Step-by-step explanation:

simple! add all of the data numbers and you get a total of 8.439 miles. He has to run 8.5 miles but he does not reach that. he has to run 0.061 miles to gain his goal (8.5-8.439) I hope this helps! (got here as soon as possible)

6 0
3 years ago
Read 2 more answers
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