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2 years ago

A pencil is 7 1/2 inches long. How long is the pencil in centimeters?

Mathematics

1 answer:

svetoff [14.1K]2 years ago

7 0

The pencil is 19.05 centimeters.

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Maya's history test had 40 questions. She answered 95% of the items correctly. How many questions did Maya answer correctly?

ankoles [38]

Maya got 38 of them right

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3 years ago

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On a coordinate plane, rhombus W X Y Z is shown. Point W is at (7, 2), point X is at (5, negative 1), point Y is at (3, 2), and

Otrada [13]

Answer:

$P = 4\sqrt{13}$

Step-by-step explanation:

Given

$W = (7, 2)$

$X = (5, -1)$

$Y = (3, 2)$

$Z =(5, 5)$

Required

The perimeter

To do this, we first calculate the side lengths using distance formula

$d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2$

So, we have:

$WX = \sqrt{(5- 7)^2 + (-1 - 2)^2$

$WX = \sqrt{13}$

$XY = \sqrt{(3-5)^2 + (2--1)^2}$

$XY = \sqrt{13}$

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

$YZ = \sqrt{13}$

$ZW = \sqrt{(7 - 5)^2 + (2 - 5)^2}$

$ZW = \sqrt{13}$

The perimeter is:

$P = WX + XY + YZ + ZW$

$P = \sqrt{13}+\sqrt{13}+\sqrt{13}+\sqrt{13}$

$P = 4\sqrt{13}$

5 0

3 years ago

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The sum of two positive numbers is 5 times their difference. What is the ratio of the larger number to the smaller number?

Anna11 [10]

Let the two numbers be x and y

x + y = 5(x-y)
x + y = 5x -5y
6y = 4x
x= (6/4)y
x= (3/2)y

there the ratio is 3/2

4 0

3 years ago

In Heavenly Hash ice cream, the ratio of cashews to marshmallows to chocolate ice cream is 1:3:36 by volume.

tamaranim1 [39]

Answer:

90%

Step-by-step explanation:

36/40 = 90%

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3 years ago

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Total power generated by wind worldwide doubles every 3 years. In a particular year, the world wind-generating capacity was abou

NeTakaya

This is a problem of doubling time, the general formula for doubling time is

N = A(2)^( t /d)
where N is the future wind generating capacity in thousand MW
A is the initial wind generating capacity which is 95,000 MW
d is the time it will double, which is 3 years
t is the time in the future in years

N = 95(2)^( t / 3) is the formula for t<span>he continuous growth rate and give a formula for wind generating capacity W W (in thousand megawatts) as a function of t t , the number of years in the future</span>

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3 years ago