MATHEMATICS HIGH SCHOOL

the area of a circle 200 mm in diameter is approximately how many times greater than the area of circle 40 mm in diameter

Answers

Answer 1
Answer: As the area of the circle is proporcional of R^2...

(200/40)^2=5^2=25 times greater

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The Golden Gate, located in San Francisco, California , is the tallest bridge in the world, with its tower extending 746 feet above the water and the floor of the bridge extending 220 feet above water. Notice that the supporting cables of the Golden Gate Bridge approximate the shape of a parabola. This parabola can be modeled by the quadratic function y = 0.00012x2 + 6, where x represents the distance form the axis of symmetry and y represents the height of the cables. The related quadratic equation is 0.00012x2 +6 = 0. Calculate the value of the discriminant

The center of a circle is at (7, –3) and it has a radius of 9. What is the equation of the circle?(x – 7)2 + (y + 3)2 = 3


(x + 7)2 + (y – 3)2 = 3


(x + 7)2 + (y – 3)2 = 81


(x – 7)2 + (y + 3)2 = 81

Answers

Given:
center (7,-3)
radius = 9

Equation of the circle:
(x-h)² + (y-k)² = r²
(x-7)² + (y-(-3)² = 9²
(x-7)² + (y+3)² = 81  Last option.

sandy has 16 roses 8 daisies and 32 tulips she wants to arrange all the flaowers in bouquets each bouquet has the same number of flowers and the same type of flower what is the greatest number of flowers that could be in a bouquet

Answers

2 Daises, 4 Roses, and 8 Tulips
2 dasies, 4 roses and 8 tulips

A population of flies grows according to the function p(x) = 6(3)x, where x is measured in weeks. A local spider has set up shop and consumes flies according to the function s(x) = 4x + 1. What is the population of flies after two weeks with the introduced spider?

Answers

Answer:

The correct answer is 45

Which equation represents a line that is parallel to the line whose equation is y = -3x - 7?y = 3x + 4
y = -3x + 7
y = (1/3x) + 1
y = (-1/3x) + 2

Answers

Hello,

Only the answer B has the same slope of -3

To determine customer opinion of their pricing​, Home Depot randomly selects 140 check out lines during a certain week and surveys all customers in the check out lines. What type of sampling is​ used?

Answers

Answer: Cluster sampling

Step-by-step explanation:

A cluster sampling is a kind of random sampling technique in which the researcher splits the whole population into distinct sets known as clusters.

After that, he choose a random sample of clusters from the population and do analysis on it.

In the given situation, the objective of survey : "To determine customer opinion of their pricing:".

He first divides the number of check out lines according to weeks and randomly selects 140 check out lines during a certain week and surveys all customers in the check out lines. .

(Here , check out lines = clusters )

Therefore , the type of sampling is​ used = Cluster sampling

Cluster sampling is used by Home Depot for a certain week and surveys all customers in the check out lines.

A cluster sampling is a kind of random sampling technique in which the researcher splits the whole population into distinct sets known as clusters.

Given, Home depot randomly selects 140 check out lines.

In the given situation, the objective of survey : "To determine customer opinion of their pricing:".

He first divides the number of check out lines according to weeks and randomly selects 140 check out lines during a certain week and surveys all customers in the check out lines. .

Here , check out lines = Clusters

Therefore , the type of sampling used is Cluster sampling .

Know more about cluster sampling,

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What is 1 5/10 in minutes? How do you convert it?

Answers

1 5/10 = 1.5 minutes
1 minutes is 60 seconds
1.5 * 60 = 90 second
90 seconds = 1 minutes and 30 seconds.
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