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vesna_86 [32]
2 years ago
5

a window is shaped like a semicircle the base of the window has a diameter of 3 1/2 feet find the area of the window to the near

est tenth of a foot use 3.14 for pi
Mathematics
2 answers:
Fed [463]2 years ago
6 0
B=55/3*1/31=55/93=.591ft
Dmitry_Shevchenko [17]2 years ago
6 0
I’m going to change to decimals just because it’s easier for me but I’ll change it back.

The formula for area of a circle is pi times radius squared.

Pi is 3.14
Radius is 1.25 (3.5 divided by 2)
And square the radius which is 1.25 times 1.25 which is 6.25

Next multiply 6.25 by 3.14

The area of a full circle would be 19.625, however the window is a semicircle. So divide 19.625 by 2 which is 9.8125 and add a feet squared afterwards.

To convert back to fractions, round the decimal to the nearest hundredth, 9.81 and put it over 100

(9 81/100 ft squared is your full answer)
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The line for which equation has negative slope?
zhenek [66]

Answer:

B.

Step-by-step explanation:

To have a negative slope, <em>m</em> has to be negative. Any negative slope would show up as a negative coefficient in front of <em>x</em>.

3 0
3 years ago
If EG = 59, and EF = 8x - 14, while FG = 4x + 1
lyudmila [28]

Answer:

x = 6

Step-by-step explanation:

EG = 59

EF = 8x - 14

FG = 4x + 1

to find the value of x

EF + FG = EG (same line)

8x - 14 + 4x + 1 = 59

12x -13 = 59

12x = 59 + 13

12x = 72

x = 72 ÷ 12

x = 6

You can even cross check for correct answer

EF + FG = EG

instead of x place the x's value we got

8x - 14 + 4x + 1 = 59

8 (6) - 14 + 4 (6) + 1 = 59

48 - 14 + 24 + 1 = 59

34 + 25 = 59

59 = 59

CROSS - CHECKED

4 0
2 years ago
Please help! *Math (10 pts)*
Allisa [31]

It's linear

If you evaluate x when it's 0 you'll get the cut in y, that means the function will pass on (0,7)

The formula for linear functions is y=mx +b

In this case b is 7

M=7-5/0+1

M=2

Now you just write the function down, it would be

F(x) =2x + 7

6 0
3 years ago
Read 2 more answers
-3/5*1/8 as fraction as the anwers
ahrayia [7]

How to get answer:

\mathrm{Multiply\:fractions}:\quad \frac{a}{b}\cdot \frac{c}{d}=\frac{a\:\cdot \:c}{b\:\cdot \:d}\\=-\frac{3\cdot \:1}{5\cdot \:8}\\\mathrm{Multiply\:the\:numbers:}\:3\cdot \:1=3\\=-\frac{3}{5\cdot \:8}\\\mathrm{Multiply\:the\:numbers:}\:5\cdot \:8=40\\=-\frac{3}{40}

4 0
3 years ago
Read 2 more answers
1.<br> |x+5|=3<br><br> How do I get this again?
Tatiana [17]
-2 because 3-5 = -2
7 0
3 years ago
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