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slavikrds [6]
3 years ago
12

What are the formulas for total surface area of 3D shapes ?

Mathematics
1 answer:
wel3 years ago
4 0
To find the surface area of a rectangular prism or cube, you would do height*width*2+height*length*2+length*width*2.
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Please I need help. I need this ASAP, the screenshot is right below here.
Delicious77 [7]

Answer:

no idea

Step-by-step explanation:

no idea jsbdkanxlanvsksnsp

6 0
3 years ago
10.2 = 0.6y what is y
AVprozaik [17]

Answer:

y = 17

Step-by-step explanation:

isolate the variable by dividing each side by factors that don't contain the variable.

6 0
2 years ago
Find values for θ that make each statement true (show steps)
Ksju [112]

Answer:

Step-by-step explanation:

1. sinФ = cos 25

25 ° is in the between 0 and 90°

therefore it can simply represent

cosФ= sin (90-Ф) = sin (90 - 25) = sin 65

2. sin(Ф/3 + 10) = cos Ф

cos Ф = sin (90 -Ф)

sin(Ф/3 + 10) = cos Ф

sin(Ф/3 + 10) = cos Ф = sin(90-Ф)

Ф/3+10=90-Ф

10Ф+3/30 = 90-Ф

10Ф+3 = 30(90-Ф)

10Ф+3 = 2700-30Ф

10Ф+30Ф=2700-3

40Ф = 2697

Ф = 2697 / 40 = 67.425 ≅ 67.4°

4 0
3 years ago
Find the measure of angle C.<br><br>measurement angle C=?​
vagabundo [1.1K]

Answer:

I am sure that C is 88 degrees

8 0
3 years ago
Find the seventh term of the geometric sequence 1, 2, 4, ... and the sum of the first seven terms. t7= S7=
IrinaK [193]

Answer:

Seventh term is 64

Sum of the first seven terms is 127

Step-by-step explanation:

The common ratio is 2

a_{n}  = a_{1} r^{n - 1}    

n = 7 and the first term is 1.  So,

a_{7}  =  1(2^{7 - 1} )  = 2^{6} = 64

Seventh term is 64

S_{n}  =  \frac{a_{1} (r^{n} -1)}{r - 1}

S_{7} = \frac{1(2^{7} -1)}{2 - 1}

    = \frac{128 - 1}{1} = 127

Sum of the first seven terms is 127

8 0
3 years ago
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