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3 years ago

The picture is the answer i forgot it last time

Mathematics

1 answer:

igor_vitrenko [27]3 years ago

3 0

C is your answer

because (4, -6) is true, and it lies on both lines, which makes both equations true

hope this helps

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Which shows the most reasonable way to estimate 3 4/7 (-2 1/12) using compatible fractions

docker41 [41]

Answer:

B). 3 1/2(-2) = -7

Step-by-step explanation:

Let's evaluate the expression so as to be able to get the right estimate.

3 4/7 (-2 1/12)

=3 4/7 (-25/12)

= 25/7 * -25/12

= -625/84

= -7 37/84

Approximately it's equal to ,-7

4 0

3 years ago

Pls help I’m having trouble

kenny6666 [7]

Answer:

1161 ft

Step-by-step explanation:

36 ft with the triangles, 900 ft with the squares, 225 ft for the bottom square, so total is 1161 ft.

3 0

3 years ago

When x=-2 and y=-3. - x^2? - 3xy + 2y^3 is

Angelina_Jolie [31]

Answer:

-66

Step-by-step explanation:

-(-2)^2=-4

-3(-2)(-3)+2(-3)^3= -62

-4-62= -66

3 0

3 years ago

40 points a bird drops a stick to the ground from a height of 80ft. the function h = 16t^2 +80 gives the stick approximate heigh

Ira Lisetskai [31]

√ 80/16=t t=0.5590169943749474

4 0

3 years ago

The Director of Admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall sem

VMariaS [17]

Answer:

Variance = 24900

Standard Deviation = 157.7973

Step-by-step explanation:

We are given the following in the question:

Number of admissions: 1000 1200 1500

Admissions Probability: 0.6 0.3 0.1

Formula:

$E(x) = \displaystyle\sum x_iP(x_i)\\E(x) = 1000(0.6) + 1200(0.3) + 1500(0.1)\\E(x) = 1110\\E(x^2) = \displaystyle\sum x_i^2P(x_i)\\E(x^2) = (1000)^2(0.6) + (1200)^2(0.3) + (1500)^2(0.1)\\E(x^2) = 1257000$

Variance =

$\sigma^2 = E(x^2) - (E(x))^2\\\sigma^2 = 1257000 -(1110)^2\\\sigma^2 =24900$

Thus, the variance is 24900.

Standard Deviation =

$\sigma = \sqrt{\sigma^2} = \sqrt{24900} = 157.7973$

Thus, the standard deviation is 157.7973

7 0

3 years ago