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ValentinkaMS [17]
4 years ago
10

How do I solve this using cosine or sine ratio?

Mathematics
1 answer:
skad [1K]4 years ago
6 0
You would use the simple format SOH-CAH-TOA
SOH: sine = opposite/hypotenuse
CAH: cosine = adjacent/hypotenuse
TOA: tangent = opposite/adjacent
----
So for this problem to find c you would use this equation: 
sin42= c/7
7sin42=c
c=4.68

Then for d you would use this equation:
tan48=d/4.68
4.68tan48=d
=5.197

Hope this helps :)
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The Math Club is holding a fundraiser by selling pies. If they sell each pie for $12, how many
andrew-mc [135]

variable- p=pie

12p≥500

The answer would be at least 42.

When you divide 500/12, you get 41.66666667. Since you can't sell that amount of cake, you have to round it up. You round it up instead of down because if you round down, then you won't have that amount anymore, and you will have less. Rounding it up will insure that you will get the right amount of money, even though you will have a few cents left over.

Hope this helps!<3

8 0
3 years ago
A car reales es 19.6 pounds of carbon dioxide for every 1 gallon of gasoline burned estimate the number of pounds of carbon diox
deff fn [24]
multiply 14.5 by 19.6
14.5x19.6 is 284.2pounds of carbon dioxide.
8 0
3 years ago
I’m new to this app and I need help with those two questions please help!!
larisa86 [58]

y=x²-10x-7

a>0 so we will be looking for minimum

x=-b/2a=10/2=5

y=25-50-7=-32

Answer: (5;32)

y=-4x²-8x+1

а<0 so we will be looking for maximum

х=-b/2a=8/-8=-1

у=4+8+1=13

Maximum point (-1;13)

6 0
3 years ago
The radius of the circle whose equation is (x - 3)2 + (y + 1)2 = 16 is: 4
aleksandr82 [10.1K]

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Step-by-step explanation:

6 0
3 years ago
A three-dimensional model of lucia’s apartment is shown. to cool the whole apartment, an air conditioner must provide 2.5 btus p
SashulF [63]

The number of btus which are needed to cool Lucia’s apartment shown in the three-dimensional model are 20,400 btus.

<h3>What is of volume of rectangular prism?</h3>

Volume of rectangular prism is the amount of quantity, which is obtained in it in the 3 dimensional space.

Volume of a rectangular prism is the product of its width, height and length.

V=w\times h\times l

Here, (w) is the width of the base (l) is the length and (h) is the height of the rectangular prism.

A three-dimensional model of Lucia’s apartment is shown. The image is attached below for the apartment. The three section are there in the apartment. The volume of this apartment is,

V=[(20\times12)+(20-9)\times16+(20\times20)]\times10\\V=8160\rm\; ft^3

To cool the whole apartment, an air conditioner must provide 2.5 btus per cubic foot. To cool, the 8160 cubic foot apartment the btus needed are,

n=8160\times2.5\\n=20400\rm\; btus

Hence, the number of btus which are needed to cool Lucia’s apartment shown in the three-dimensional model are 20,400 btus.



Learn more about the volume of a rectangular prism here;

brainly.com/question/4016105

5 0
3 years ago
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