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Arisa [49]
3 years ago
12

In need of help for pentagon area

Mathematics
1 answer:
TEA [102]3 years ago
3 0

Find the area as iff it was a rectangle, then subtract the area of the triangle in the top left corner.

Area of rectangle = 20 x 18 = 360

Area of triangle = 1/2 x 4 x 3 = 6

Area of pentagon = 360 - 6 = 354 cm^2

See picture:

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3 years ago
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Sally wants to fill ten 8-inch tea glasses.how much tea does she need
ra1l [238]
More info is needed.  If you were able to provide the radius of the base of the tea glasses as well as the height (8 inches), then it'd be possible to calculate the volume of one such glass.  Are these short and fat tea glasses?  or tall and slim tea glasses?  My point:  We don't know.  Try to supply the missing info.

There are 10 such 8-inch tea glasses.  Of course you could multiply 10 and 8 to get 80 inches, but 80 inches is NOT a suitable measure of the volume of a liquid. 
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4 years ago
Could anyone help with this question?
Nikitich [7]

Answer:

I just answered this question, In case you missed it, here it goes again:

Values for the coefficient in the product k:

a=b=c=d=3*10^8, so the first four boxes should be filled with the number "3"

Drop down arrow: "does"

Step-by-step explanation:

We perform all the products of wavelength time frequency indicated for the column of the quantity "k":

a=1 * 10^{-10} * 3\, * 10^{18} = 3 * 10^{-10+18} = 3 * 10^{8}=

b=1 * 10^{-1}*3*10^9=3* 10^{-1+9}=3*10^8

c=600*10^{-6}*5*10^{11}=3000*10^{-6+11}=3000*10^5=3*10^3*10^5=\\=3*10^{3+5}=3*10^8

d=4*10^{-7}*7.5*10^{14}=30.0*10^{-7+14}=30*10^7=3*10*10^7=\\=3*10^{1+7}=3*10^8

Therefore, all products of these different wavelengths and their associated frequencies render the exact same answer : 3*10^8, which means that as one of these quantities increase, the other one will decrease in the same proportion to give the same numerical answer.

This means that the two quantities are associated via inverse proportionality. As seen in the equation below, if the quantities "x" and "y" are related by inverse proportionality (shown as one equals a constant "A" divided by the other variable), their product x*y will give that constant value "A" (which in our case is 3*10^8.

x=\frac{A}{y} \\x*y=A

8 0
3 years ago
What is the value of x in the equation -3/4 = x/24​
Kazeer [188]
X= -18.

So in -3/4 = x/24 , you have to begin by getting the same denominator. 4 goes into 24, 6 times, so you would have to multiply -3 by 6 too for them to be equal.
5 0
3 years ago
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If nominal GDP is 2400 and the money supply is 400, what is the velocity?
Marta_Voda [28]

Answer:

The velocity of money is 6.

Step-by-step explanation:

Nominal Gross Domestic Product is the Gross Domestic Product that has been determined by the current prices of goods and services in a market.

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Therefore the velocity of money is 6.

7 0
3 years ago
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