3 years ago

Which value of k makes 3- 3k -12 > 9 true ?

Mathematics

2 answers:

Sphinxa [80]3 years ago

6 0

I think it’s -6 because you’d add 12 to 9 to get 21 then subtract 3 to get 18. 18 divided by -3 is -6

Nadya [2.5K]3 years ago

3 0

Answer:

Step-by-step explanation

k can be 11. If u plug 11: 3-21-12 is bigger than 9

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There are 25boys and 15girls in a class.if a student is picked at random .what is the probability that the student is a girl

emmasim [6.3K]

Answer:

Step-by-step explanation:

Total Students in Class = 25+ 15=40

Probability= (Number of Girls in Class) ÷ (Total students in Class)

Probability of girl= 15 ÷ 40 = 0.375

7 0

3 years ago

1. x2 + 12x + 27 = 0<br> what’s the answer ?

Ostrovityanka [42]

Answer:

$x^{2}$ + 3x +9x +27 = 0

x(x+3)+9(x+3)=0

(x+3)(x+9)=0

x=-3, x=-9

Step-by-step explanation:

a=1 b=12 c=27

sum=12

factor=27x 1

3x9

also 3+9=12

8 0

4 years ago

Please Help will award brainliest

EastWind [94]

Answer:7

Step-by-step explanation:

Remember,

PEMDAS

Begin by 3 / 1/3 = 1

1+1=2

9-2 = 7

3 0

3 years ago

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Alex Ar [27]

The answer is B i think so

8 0

3 years ago

Determine whether each equation represents a

luda_lava [24]

Answer:

Answer: B

Step-by-step explanation:

The y intercept must be 0. The y intercept for a = - 2. This is not

a proportional relationship

The same comment can be made for C. The y intercept is 1. So C is not the answer.

3 0

2 years ago