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Nana76 [90]
4 years ago
9

Hey I have an exam tomorrow in my "Statistics for Computer Science" course and I need help on a few problems.. Not sure where to

start on them..
Screenshot of the first two below.. Thanks in advance

Mathematics
1 answer:
Hitman42 [59]4 years ago
4 0
For 1a question can thought as an equation mk+5=27 the k represents any number 1,2,3,...n but you can treat it as k=1 since it is used to find others numbers that can give you x congruent 5(mod m). Any ways so m+5=27 just solve for m and that will give you solution.
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Help please!!! Thankyou
umka21 [38]

Answer: 70!

Step-by-step explanation: set the equation equal to eachother. x=30, plug it in

3 0
3 years ago
Student Produced Response - Calculator
faltersainse [42]

Answer:

\dfrac{a}{b}=0.75.

Step-by-step explanation:

If two equations a_1x+b_1y+c_1=0 and a_2x+b_2y+c_2=0 has infinitely many solutions, then

\dfrac{a_1}{a_2}=\dfrac{b_1}{b_2}=\dfrac{c_1}{c_2}

The given equations are

ax+by=10

3x+4y=20

It is given that the above system of equations has infinitely many solutions. So,

\dfrac{a}{3}=\dfrac{b}{4}=\dfrac{10}{20}

\dfrac{a}{3}=\dfrac{b}{4}=\dfrac{1}{2}

Now,

\dfrac{a}{3}=\dfrac{1}{2} and \dfrac{b}{4}=\dfrac{1}{2}

a=\dfrac{3}{2} and b=\dfrac{4}{2}

a=1.5 and b=2

So, a=1.5 and b=2.

Now,

\dfrac{a}{b}=\dfrac{1.5}{2}=0.75

Therefore, \dfrac{a}{b}=0.75.

5 0
4 years ago
Can you please help me? Explain each with answer please. See attacment.
SCORPION-xisa [38]
1. $9.00
2. Sorry, I don't understand this problem
3. Ally Cat because it is $1 cheaper 
5 0
3 years ago
What is the value of n in the equation below?
Luden [163]

Answer:

I believe it is 12.

Step-by-step explanation:

12 - 3 = 9

7 0
3 years ago
Help me please guys I really need it
TEA [102]

Answer:

  1. You have a standard deck of 52 cards
  2. You have 4 jacks in the standard card
  3. Hence 4/52
6 0
3 years ago
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