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natali 33 [55]
3 years ago
14

Mario collected data from his classmates on their favorite subject among math, science, english and history. The data is display

ed in the table. Is it likely that a student likes math more if they are in 9th grade or 12th grade? Justify your answer.
Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
4 0
You are looking for two conditional probabilities. The first is that a person likes math given they are in 9th grade and the second is that a person likes math given they are in 12th grade. <span>12th grade. The conditional probability that a 12th grader likes math is 0.412, while the conditional probability that a 9th grader likes math is 0.390

</span>
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For the final days before the election, the campaign manager has a total of $41,500 to spend on TV and radio campaign advertisem
Margaret [11]

Answer: There are 9 T.V. and 29 radio ads.

Step-by-step explanation:

Since we have given that

Total amount spend on TV and radio = $41,500

Total number of voters using the allocated funds = 148,000

Let the number of TV be 'x'.

Let the number of radio ads be 'y'.

Cost of each TV = $3000

Cost of each radio ads = $500

Number of voters see T.V. = 10,000

Number of voters use radio = 2000

So, According to question, it becomes,

3000x+500y=\$41500\implies\ 30x+5y=415\\\\10000x+2000y=148000\implies 10x+2y=148

Using the graphing method, we get that

These two lines are intersect at (9,29).

Hence, there are 9 T.V. and 29 radio ads.

7 0
4 years ago
Read 2 more answers
Catalina and Morgan are finding the length of the third side of the right triangle. Who is correct? Explain your reasoning.
algol13

Answer:

Morgan

Step-by-step explanation:

because the pythagoras theorem is

H

{h1}^{2}  =  {b}^{2}  +   {h2}^{2}

where h1=hypotenuse

h2=height

b=base

5 0
2 years ago
What are the zeros of the quadratic function f(x)=2x^2+8x-3
Fynjy0 [20]

Answer:

you can use the quadratic formula to get theses:-

x  =[-8 +/- sqrt(8^2 - 4*2*-3)]  / 4

= -2 +/- sqrt88) / 4

= 0.35, -4.35   to nearest hundredth

Step-by-step explanation:


7 0
3 years ago
What is the perimeter of a triangle if the lengths of the sides
Leno4ka [110]

Answer:

P=x+18

Step-by-step explanation:

a=8

b=x

c=10

P=8+x+10

8 0
3 years ago
What is the prime factorization of 630
Kisachek [45]
630|2
315|3
105|3
35|5
7|7
1

630=2\cdot3^2\cdot5\cdot7

3 0
4 years ago
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