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3 years ago

Jamie evaluated this expression.

Mathematics

2 answers:

Murrr4er [49]3 years ago

7 0

1. Product of powers

2. Power of a power

3 Quotient of powers

Your step 2 was wrong.

To everyone who sees this; have fun spending hours on Edgenuty! honestly i dislike edgenuty a lot

zavuch27 [327]3 years ago

5 0

Answer:

Step-by-step explanation:

step 2: power of power

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What’s the scale factor

dem82 [27]

Answer:

Step-by-step explanation:

The scale is depending on the size of each cat. Lets say the larger cat is A and the smaller one is B. The scale factor from B to A is 1.75 (or 3.5/2)

when solving for scale factor you divide the original drawing and scale drawing. Original is denominator, Scale is Numerator.

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3 years ago

The perimeter of a rectangular banner is 72 inches. The width of the banner is 1/3 its length. What is the area of the banner?

muminat

Answer:

144

Step-by-step explanation:

If you multiply 4 by 12, then add 100, you get 144 which is the area.

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3 years ago

What is the perimeter of the composite figure? (6 cm,4 cm,4cm,6.5cm,9.5cm)

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Answer: I need points

Step-by-step explanation:

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2 years ago

Read 2 more answers

A manager at a local company asked his employees how many times they had given blood in the last year. The results of the survey

Lubov Fominskaja [6]

Answer:

$Var(X) = E(X^2) -[E(X)]^2 = 4.97 -(1.61)^2 =2.3779$

And the deviation would be:

$Sd(X) =\sqrt{2.3779}= 1.542 \approx 1.54$

Step-by-step explanation:

For this case we have the following distribution given:

X 0 1 2 3 4 5 6

P(X) 0.3 0.25 0.2 0.12 0.07 0.04 0.02

For this case we need to find first the expected value given by:

$E(X) = \sum_{i=1}^n X_i P(X_I)$

And replacing we got:

$E(X)= 0*0.3 +1*0.25 +2*0.2 +3*0.12 +4*0.07+ 5*0.04 +6*0.02=1.61$

Now we can find the second moment given by:

$E(X^2) =\sum_{i=1}^n X^2_i P(X_i)$

And replacing we got:

$E(X^2)= 0^2*0.3 +1^2*0.25 +2^2*0.2 +3^2*0.12 +4^2*0.07+ 5^2*0.04 +6^2*0.02=4.97$

And the variance would be given by:

$Var(X) = E(X^2) -[E(X)]^2 = 4.97 -(1.61)^2 =2.3779$

And the deviation would be:

$Sd(X) =\sqrt{2.3779}= 1.542 \approx 1.54$

8 0

3 years ago

In the standard (x, y) coordinate plane, what is the distance, in coordinate units, between (-3, -2) and (5, 5)?

Sav [38]

Answer:

10.630

Step-by-step explanation:

$\sqrt(x_{2} -x_{1})^{2} + (y_{2} -y_{1})^{2}$

$\sqrt( 5-(-3)^{2} + (5- (-2)^{2}$

(5 - ( - 3)^2 = 64

(5 - ( -2)^2 = 49

49 + 64

113

$\sqrt113$

10.630

I hope this helps

8 0

3 years ago