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2 years ago

PLS HELP FIRST TO ANSWER GETS BRAINLEST What is 1+1

Mathematics

2 answers:

Anna [14]2 years ago

8 0

Answer:

Obviously 3

Step-by-step explanation:

Next time give us a harder question like c'mon man

9966 [12]2 years ago

4 0

Answer:

2 omg dat was to hard

Step-by-step explanation:

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HELP PLS

aleksandrvk [35]

So this is a lot of work but ghe answers are (fix)

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2 years ago

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Solve for x. Round your answer to the nearest tenth

bonufazy [111]

X is 6.11431

so 6.1 rounded to nearest tenth

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2 years ago

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There are three executives in an office, ages 56, 57, and 58. If a 57-year-old executive enters the room, the

vova2212 [387]

Answer:

option (c) The mean age will stay the same but the variance will decrease

Step-by-step explanation:

Case I: For 3 executives of ages 56, 57 and 58

Number of executives, n = 3

Mean = $\frac{\textup{56 + 57 + 58 }}{\textup{3}}$

Mean = 57

Variance = $\frac{\sum{(Data - Mean)^2}}{\textup{n-1}}$

Variance = $\frac{(56 - 57)^2+(57-57)^2+(58-57)^2}{\textup{3-1}}$

Variance = $\frac{1+0+1}{\textup{2}}$

Variance = 1

For Case II: For 4 executives of ages 56, 57, 58 and 57

Number of executives, n = 4

Mean = $\frac{\textup{56 + 57 + 58 + 57 }}{\textup{4}}$

Mean = 57

Variance = $\frac{\sum{(Data - Mean)^2}}{\textup{n-1}}$

Variance = $\frac{(56 - 57)^2+(57-57)^2+(58-57)^2+(57-57)^2}{\textup{4-1}}$

Variance = $\frac{1+0+1+0}{\textup{3}}$

Variance = 0.67

Hence,

Mean will remain the same and the variance will decrease

Hence,

The correct answer is option (c) The mean age will stay the same but the variance will decrease

3 0

2 years ago

Help i,m suck and i cant find the answer

Anestetic [448]

The answer is 2x
3
+5x
2
−x−6

7 0

2 years ago

Help me please.........

algol13

Step-by-step explanation:

it's mathematics or what I will help you.

7 0

2 years ago