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vagabundo [1.1K]
2 years ago
8

PLZ HELP ITS TESTED lol

Mathematics
2 answers:
Tamiku [17]2 years ago
8 0

Answer: A

Step-by-step explanation:

I had this on one test and A was correct

Naddik [55]2 years ago
6 0

Answer:

A

Step-by-step explanation:

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Hello there!
otez555 [7]

Answer:

24  Domain: s>=2  or s<=-2

25. 3x^2 +14x +10

26. x^2 -2x+5  

Step-by-step explanation:

24.  Domain is the input or s values

square roots must be greater than or equal to zero

s^2-4 >=0

Add 4 to each side

s^2 >=4

Take the square root

s>=2  or s<=-2


25.  f(g(x))  stick g(x) into f(u) every place you see a u

f(u) = 3u^2 +2u-6

g(x) = x+2

f(g(x) = 3(x+2)^2 +2(x+2) -6

Foil the squared term

       = 3(x^2 +4x+4) +2x+4-6

Distribute

       = 3x^2 +12x+12 +2x+4-6

Combine like terms

   =3x^2 +14x +10


26 f(g(x))  stick g(x) into f(u) every place you see a u

f(u) = u^2+4

g(x) = x-1

f(g(x) = (x-1)^2 +4

Foil the squared term

         = (x^2 -2x+1) +4

         = x^2 -2x+5  

7 0
3 years ago
There are 220 students in the seventh grade, and 10% are in the Environmental Club. How many students are in the Environmental C
siniylev [52]

Answer:

22 students are in the environmental club

Step-by-step explanation:

220 / 10 = 22

7 0
3 years ago
Students from two age groups were surveyed to see how they travel to school. Here are the results:
liq [111]

Answer:

The table representing the number of students by which mode of transport they travel is given as:

                              Walk or bike    Bus       Car     Row Total

Below age 15            87                    60        18           165

Age 15 and above   65                    50        80         195

Column Total            152                  110        98         360

We know that a relative frequency of an event is the ratio of frequency to the total number of trials.

i..e we divide each frequencies by 360 to obtain a two-way relative frequency.

Hence,the table is given as:

                              Walk or bike    Bus       Car     Row Total

Below age 15            0.24               0.17      0.05         0.46

Age 15 and above    0.18                0.14      0.22        0.54

Column Total             0.42               0.31     0.27          1                        

6 0
3 years ago
Read 2 more answers
A school debate team has 4 girls and 6 boys. A total of 3 of the team members will be chosen to participate in the district deba
Varvara68 [4.7K]
The probability that 1 girl and 2 boys will be selected is given by:
P(1\ boy,\ 2\ girls)=\frac{4C1\times6C2}{10C3}=\frac{1}{2}
The correct answer choice is B. 1/2.
6 0
3 years ago
Read 2 more answers
Write the expression: the quotient of the quantity k minus 12 and m.
Vlad1618 [11]

the quotient= answer

quantity = ( )

minus= subtraction

final answer:

(k-12) ÷ m

6 0
3 years ago
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