MATHEMATICS HIGH SCHOOL

2+1=
I still cannot firnd the answer I am so silly plz someone teleel me in 1 min

Answers

Answer 1
Answer: 3
Is the answer hope it helped
Answer 2
Answer: 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 33 3 3

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Please help! I'll mark your answer as brainliest if right <3
Find the zeros of the following polynomial.3x3 + 9x2 - 12x
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What adds to get 12 and multiply to 45

Answers

the answer is 3 and 15
3! Because: 

3 + 3 + 3 + 3 = 12 
and 
3 x 15 = 45

Which of the following represents a random sample if the population being sampled is students participating in athletics at a local middle school?choosing ten students that also participate in a music class
choosing ten students from a box that contains the names of the entire group
choosing five students each from seventh and eighth grade
choosing five female students and five male students

Answers

Answer:

Choosing ten students from a box that contains the names of the entire group

Step-by-step explanation:

If each and every unit has equal chance of being selected in a sample then it is called Random Sampling. Here choice of sample should be unbiased and independent.

Option (a) is incorrect because here selection of student is not independent as only those students are choosing who also participate in music class.

Option (b) is correct option as selection of students are independent and unbiased. Also here each student has equal chance of being selected in sample.

Option (c) can't be chosen as selection of student is done from particular cluster.

Option (d) is also incorrect as here we put condition of male and female students.

choosing ten students from a box that contains the names of the entire group.

This is the only one where everyone has an equal chance of being chosen.

If ∠BAE = 45° and ∠CED = 70° is ΔABE ~ ΔCDE? If so, by what criterion?A) yes, by AA criterion
B) yes, by SAS criterion
C) yes, by SSA criterion
D) no, not possible to tell.

Answers

Answer:

ΔABE ~ ΔCDE by AA criterion .

Option (A) is correct .

Step-by-step explanation:

As given

∠BAE = 45° and ∠CED = 70°

Now in the ΔABE .

By apply angle sum property of a triangles .

∠ABE + ∠BEA + ∠BAE = 180 °

(As ∠BAE = 45° , ∠ABE = 65°)

65 + ∠BEA + 45 = 180 °

∠BEA = 180° - (65+45)°

∠BEA = 180° - 110°

∠BEA = 70°

As in ΔCED .

∠CDE + ∠DEC + ∠ECD = 180°

(As  ∠CED = 70° , ∠CDE = 65°)

65 + 70+ ∠ECD = 180°

∠ECD = 180° - (65+70)°

∠ECD = 180° - 135°

∠ECD = 45°

Now in the ΔABE and ΔCDE .

(1)  ∠BAE =∠ECD = 45°

(2) ∠BEA=∠CED = 70°

(3) ∠ABE = ∠CDE = 65°

Thus  ΔABE ~ ΔCDE by AA criterion .

Option (A) is correct .

In how many ways can we choose a 12 member jury from 30 possible people?

Answers

This is a problem dealing with permutations and combinations.
Order does not matter in this problem.
Since order doesn't matter, it is a combination.
Repetition matters, since you can't have the same person count as two people.

There are twelve slots.

_ _ _ _ _ _ _ _ _ _ _ _ 

Each slot needs to be multiplied by the next.

_*_*_*_*_*_*_*_*_*_*_*_

Now we have to fill in the slots.
Each slot will be filled with a number one less than the one before it. It has to be one less, since repetition matters.
The numbers will be decreasing from 30, since there are 30 possible people.

30 * 29 * 28 * 27 * 26 * 25 * 24 * 23 * 22 * 21 * 20 * 19

Multiply these numbers together and you get your answer.

41,430,393,164,160,000 ways

What is 12-2x6 + 2/2 ?

Answers

12-2*6 + (2)/(2)= \n 12-12+1 = 0 + 1 = 1

To fit in an existing frame, the length, x, of a piece of glass must be longer than 12 cm but not longer than 12.2 cm. Which inequality can be used to represent the lengths of the glass that will fit in the frame?.

Answers

Inequality that represents the lengths of the glass:
12 cm <  x  ≤ 12.2 cm

Answer:

12<x≤12.2

Step-by-step explanation:

To fit in an existing frame, the length, x, of a piece of glass must be longer than 12 cm but not longer than 12.2 cm.

The length of frame is x cm.

Length of frame must be longer than 12 cm.

Inequality,  x>12

Length of frame not longer than 12.2 cm

In equality, x≤12.2

Now we make compound inequality of question

"Length of frame, x must be longer than 12 cm and not longer than 12.2 cm"

Inequality: 12<x≤12.2

Length of glass fit in the frame, 12<x≤12.2

Hence, The inequality 12<x≤12.2
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Find 2 consecutive odd integers whose sum is 116
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