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3 years ago

What word best describe the line of symmetry in the letter D

1 answer:

6 0

The line of symmetry can never be symmetrical. If you put a vertical line through the middle the sides aren't equal. Same for horizontal and diagonal.

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Fritz is in charge of buying uniform for his baseball team. one uniform costs $20. there are 14 players on his team. how much wi

tekilochka [14]

If 1 uniform costs $ 20....and there are 14 players....then Fritz would spend
(20 x 14) = $ 280.....thats if each player only gets 1 uniform .

8 0

3 years ago

A golfer keeps track of his score for playing nine holes of golf (half a normal golf round). His mean score is 8080 with a sta

solniwko [45]

Answer:

Therefore the mean and standard deviation of his total score if he plays a full 18 holes are 160 and $11\sqrt2$ respectively.

Step-by-step explanation:

Given that,

For the first 9 holes X:

E(X) = 80

SD(X)=13

For the second 9 holes Y:

E(Y) = 80

SD(Y)=13

For the sum W=X+Y, the following properties holds for means , variance and standard deviation :

E(W)=E(X)+E(Y)

and

V(W)=V(X)+V(Y)

⇒SD²(W)=SD²(X)+SD²(Y) [ Variance = (standard deviation)²]

$\Rightarrow SD(W)=\sqrt{SD^2(X)+SD^2(Y)}$

∴E(W)=E(X)+E(Y) = 80 +80=160

and

∴ $SD(W)=\sqrt{SD^2(X)+SD^2(Y)}$

$=\sqrt{11^2+11^2}$

$=\sqrt{2.11^2}$

$=11\sqrt2$

Therefore the mean and standard deviation of his total score if he plays a full 18 holes are 160 and $11\sqrt2$ respectively.

4 0

3 years ago

I need help with this. What is the answer? (13 x 4 +5²) - 2

Fittoniya [83]

Answer: 75

Step-by-step explanation:

7 0

2 years ago

Translate the sentence into an equation.

Ainat [17]

I'm not sure if interpreted your wording correctly but this is what I got...

w(4)+6=8

4 0

3 years ago

The graph represents the atmospheric pressure, in pounds per square inch, as a function of altitude in miles above sea level.

Veseljchak [2.6K]

From the graph, we can actually see that as the altitude increase, the value of the pressure decreases. Or if we say it the opposite way, as the altitude decreases (approaches sea level), the pressure increases, therefore the answer is:

As the altitude approaches sea level, the atmospheric pressure increases.

5 0

3 years ago