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3 years ago

23X67 Estimate then find the prouduct

1 answer:

3 0

To estimate, you would usually round to a significant figure
so, 20* 70=1400

The actual answer is 1521, so we know we are close

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At the battle of bunker hill approximately 2400 colonial army troops clashed with 3000 British army troops what is the ratio of

SVETLANKA909090 [29]

Answer:3000:2400

Step-by-step explanation:

7 0

3 years ago

If the endpoints of the diameter of a circle are (−14, 4) and (−2, 0), what is the standard form equation of the circle? a) (x −

Stels [109]

The answer to this question is 10

8 0

4 years ago

Read 2 more answers

Eliminate the parameter and write a rectangular equation for.

Artyom0805 [142]

Eliminate the parameter t:t=y/2
x=y^2/2+3

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4 years ago

Please help me solve this: 6 1/3 + k + 3 5/6 + 5 1/2 = 26 1/6

attashe74 [19]

6 1/3 + k + 3 5/6 + 5 1/2 = 26 1/6
Add your fractions
6 1/3 + 3 5/6 + 5 1/2 = 15 2/3
now You need to isolate k on one side of the equation by using the subtraction method of equality.
k + 15 2/3 = 26 1/6
k = 10 1/2

Hope this helps

I had to edit

5 0

4 years ago

Read 2 more answers

. Let X and Y be random variables of possible percent returns (0%, 10%,

bazaltina [42]

(a) The marginal distribution of X is

Pr(X = x) = ∑ Pr(X = x, Y = y)

… = 0.0625 + 0.0625 + 0.0625 + 0.0625

… = 0.25

That is, the first equality follows from the law of total probability, with the sum taken over y from {0, 5, 10, 15}. Each probability Pr(X = x, Y = y) is given in the table to be 0.0625.

Similarly, the marginal distribution of Y is

Pr(Y = y) = 0.25

(b) Yes, they're independent because

Pr(X = x, Y = y) = 0.0625,

and

Pr(X = x) Pr(Y = y) = 0.25 • 0.25 = 0.0625.

E[X] = ∑ x Pr(X = x)

… = 0.25 ∑ x

… = 0.25 (0 + 5 + 10 + 15)

… = 7.5

and you would find the same mean for Y,

E[Y] = 7.5

The variance of X is

V[X] = E[X^2] - E[X]^2

… = (∑ x^2 Pr(X = x)) - 7.5^2

… = 0.25 (∑ x^2) - 56.25

… = 0.25 (0^2 + 5^2 + 10^2 + 15^2) - 56.25

… = 31.25

and similarly,

V[Y] = 31.25

(each sum is taken with x and y from {0, 5, 10, 15})

7 0

3 years ago