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Len [333]
2 years ago
10

To find the surface area of a three dimensional figure, you must find the area of each of its faces and then multiply the areas.

True or False
Mathematics
1 answer:
defon2 years ago
7 0

Answer:

False

Step-by-step explanation:

we know that

To find the surface area of a three dimensional figure, you must find the area of each of its faces and then sum the areas

The surface area of a three dimensional figure is equal to the area of its bases plus the area of its lateral faces

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Solve:<br><br>1/5c =15<br><br>c=__<br>solve what c equals
grin007 [14]

Answer:

75

Step-by-step explanation:

a fifth of c is 15

75÷5=15

4 0
3 years ago
Eric invited 200 of his friends to his graduation party. 75% of those invited said yes. 15% said no. The rest said maybe. 10% of
Ilia_Sergeevich [38]

Answer:

145

Step-by-step explanation:

75% of 200 = 150

75% + 15% = 90%

100% - 90% = 10%

10% of 200 = 20

10% of 150 = 15

150 + 15  - 20 = 145

145 friends attended the party.

4 0
2 years ago
Kathi's order at the diner cost $12.75. She had<br> to pay 6% tax on the bill. How much is her tax?
Talja [164]

\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{6\% of 12.75}}{\left( \cfrac{6}{100} \right)12.75}\implies 0.765~~\approx 0.77~~\textit{about 77 cents}

3 0
2 years ago
Find the equation of the line that passes through the points : (4 , -1 ) and (0 , -3)
Sergio [31]

Answer:

B. y= 1/2 x - 3

Step-by-step explanation:

base equation: y= mx+ b

slope(m) equation: \frac{y_{2}-y_{2}  }{x_{2} -x_{1} }

y2= -1    y1= -3

x2= 4     x1= 0

\frac{-1 - (-3)}{4-0} =\frac{2}{4} = \frac{1}{2}

y- intercept: -3

found by taking the y from (0,-3)

3 0
3 years ago
What are the coordinates of the terminal point determined by T=20pi/3
Serga [27]

Answer:

t=5x=3049

Step-by-step explanation:

3 0
2 years ago
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