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mamaluj [8]
3 years ago
9

Please help me !!! need help will mark brainly

Mathematics
1 answer:
Ronch [10]3 years ago
4 0

Answer:

1. is 3 2/3

2. is 3 1/4

3. is 2 1/4

Hope this helped! :)

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Write an expression that gives the requested sum. the sum of the first 18 terms of the geometric sequence with first term 3 and
alina1380 [7]
I got 786432 when I use a(r^n-1)/(r-1)
8 0
3 years ago
How much more pizza is in a 12-in.diameter pizza than an 8-in.diameter pizza?
e-lub [12.9K]

Answer:

62.8 in2

Step-by-step explanation:

With round pizza we need to

find the area of each pizza in

square inches, then determine

the difference.  

The area of a circle is given by:

A = πr2

 

12 inch diameter, radius = 6

a = π(62) = 36π in2

 

8 inch diameter, radius = 4

a = π(42) = 16π in2

 

Difference:  36π - 16π = 20π in2

 

using 3.14 for pi, the difference is

20(3.14) = 62.8 in2

3 0
3 years ago
Read 2 more answers
10 points. Please help me with numbers 9-13.<br> Numbers 9-13 is the picture.
melomori [17]

Answer:

x  = 18

y = 15

Step-by-step explanation:

Remark

Step One

The main step is to realize that if the lower left hand angle is 90 degrees, then the upper left hand angle is also 90. That is because the interior angles of parallel lines are supplementary. If one of the angle is 90 degrees, so is the other.

<em><u>Conclusion from the Remark</u></em>

5x = 90

x = 90/5

x = 18 degrees

Step Two

Find y

y is just a bit harder to find . The safest way is to add all four interior angles together. For any trap*zoid (you cannot spell this word properly. The editor has a fit), the interior angles add up to 360 degrees.

So just add the 4 angles together and equate to 360

5(y + 11) + 4y  - 10 + 90 + 90 = 360     Combine like terms

5(y + 11) + 4y -  10 + 180 = 360            Combine again

5(y + 11) + 4y + 170 = 360                   Subtract 170 from both sides

5(y + 11) + 4y = 360 - 170                     Combine like terms

5(y + 11) + 4y = 190                             Remove the brackets

5y + 55 + y4 = 190                             Combine like terms

9y + 55 = 190                                     Subtract 55 from both sides.

9y = 190 - 55

9y = 135                                              Divide by 9

y = 135 / 9

y = 15

8 0
3 years ago
Round 533,786 to nearest ten thousand
WINSTONCH [101]

Answer:

530,000

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Please help me with geometry it is due in one hour
Anna11 [10]

Answer:

7

Step-by-step explanation:

7 x 4 = 28 - 5 = 23

7 + 16 = 23

3 0
3 years ago
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