Questions on Geometry: Geometric formulas answered by real tutors!

Tutors Answer Your Questions about Geometric formulas (FREE)

Question 111701: The Louisiana Superdome covers an area of 363,000 square feet.
Find the diameter of this round arena to the nearest foot.

Click here to see answer by checkley71(8403)

Question 112250: The perimeter of a rectangle is 24 cm. Find the value of x.
length is 3x cm. and width is 3 cm.
what is the answer please.

3 cm
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fffff 3x cm
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Click here to see answer by jim_thompson5910(35256)

Question 112219: If planes a and b are distinct planes having points x,y,and z in common, what conclusion can you make about points x,y, and z?
Why?
Click here to see answer by scott8148(6628)

Question 112457: C=2(pie)r for r..i dont understand how to solve this. i would like some help exlaining how to do it!!!

there's no way to put a pie symbol on here!!!
Also there is a problem on here that you have to solve this, 6 days's : 3 weeks,
and then it shows 6
-
3 and the answers turns out to be 2/7..HELP!!!
Click here to see answer by Fombitz(32388)

Question 112506: find the perimeter of the regular heptagon in feet if the area of the square is 56.25 sq. yards c=______________feet
Click here to see answer by checkley71(8403)

Question 112743: If PQ =21cm and QR= 5cm then what are the possible lengths for PR so that (line over)PQ, (line over)QR, and (line over)PR can form a triangle? Explain your reasoning.
Click here to see answer by mathnard(10)

Question 114642: goldi's pizza place is known throughout the city. the small pizza has a 6-inch radius and sells for $9.75. the medium pizza sells for $12.00 and has an 8-inch radius. the large pizza has a 20-inch radius and sells for $16.50. what size has the most pizza edge per dollar?. and what is the circumfrence of that pizza?
Click here to see answer by stanbon(75887)

Question 116410:
(-9)(5)
_______
-3
Click here to see answer by edjones(8007)

Question 116410:
(-9)(5)
_______
-3
Click here to see answer by checkley71(8403)

Question 116409:
(-6) 2pie - 4 2pie
Click here to see answer by checkley71(8403)

Question 116960: Divide
-15/-3
Thanks for your help
Click here to see answer by stanbon(75887)

Question 116959: Please Help
Multiply
(10)(6)(-9)

thanks
Click here to see answer by MathLover1(20850)

Question 116958: Place the following set of numbers in ascending order

-2/9, 5/9, 1/8, -1/9, 3/7
thanks for your help
Click here to see answer by checkley71(8403)

Question 116957: please help me with this

Find the reciprocal of [-1/5](15)

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Question 116956: Can someone please help me with this.
Subtract
7/9 - [-13/18]

Click here to see answer by checkley71(8403)

Question 116954: Please Help
Divide
90/18
Click here to see answer by checkley71(8403)

Question 116955: please help

Find the reciprocal of 1/3(9-4)
Click here to see answer by checkley71(8403)

Question 116953: Help..LOL
Multiply
(1.3)(10)(-4)
Click here to see answer by checkley71(8403)

Question 116951: Could someone please help me with this
Add
-3/5 + [8/35]
Click here to see answer by checkley71(8403)

Question 116952: Please Help
Subtract
-2.3 - (-8.8)

Click here to see answer by checkley71(8403)

Question 117737: I need your help once again. Thank you all in advance
Estimate the following product by rounding each factor to the nearest hundred.
312x371
Click here to see answer by stanbon(75887)

Question 117878: ok..now i am really lost.
64 is 8% of what number?
help please
Click here to see answer by stanbon(75887)

Question 118694: The measure of an interior angle of a regular polygon is given. Find the number of sides in each polygon
1.) 120 2.)150
I am at a complete lost here, could someone help me please? Where would I start?
Click here to see answer by scott8148(6628)

Question 116450: Evaluate..Please Help
|-27 + 14 |
Click here to see answer by awang1996(50)

Question 96591: I can not figure this problem out could someone please help?
Find the term in the sequence: 1/2, -4, 32, _
Click here to see answer by Caallen2(9)

Question 119779: I need this A.S.A.P . Solve each formula for n.
3n-p=6m
Click here to see answer by funmath(2933)

Question 119779: I need this A.S.A.P . Solve each formula for n.
3n-p=6m
Click here to see answer by scott8148(6628)

Question 120812: The diameter of a circle in terms of its circumference
Click here to see answer by josmiceli(19441)

Question 121464: I can't figure out this problem please explain it to me.

6. A lot is 40 meters by 36 meters. a house 27 meters by 9 meters is built on the lot. How much area is left over for a lawn?
thanks Janelle
Click here to see answer by checkley71(8403)

Question 121465: I can't figure out this problem please help.
10. find the area inside the square, but outside the circle, given that the radius of the circle is 2 ft. use 3.14 for pie.
thanks
Click here to see answer by tutor_paul(519)

Question 121551: Please help me figure this out.
If x-y=9 and xy=3, then x^2+y^2=?
Answers:
a) 36
b) 2(sqrt of 21)
c) sqrt of 87
d) 84
e) 87
Click here to see answer by MathLover1(20850)

Question 121642: State whether each sequence is a geometric sequence. If so, state the common ration and list the next three terms.
24, 12, 6, 3, .....
Click here to see answer by checkley71(8403)

Question 121643: State whether each sequence is a geometric sequence. If so, state the common ration and list the next three terms.
9, 3, -3, -9, .....
Click here to see answer by checkley71(8403)

Question 121549: Please help me figure this out.
Solve for x: 9^x+1 + 9^x+2 + 9^x+3 + 9^x+4 + 9^x+5 = 22,143
Answers:
a) -1/2
b) 1/2
c) -1/3
d) 1/3
e) 2/3
Click here to see answer by scott8148(6628)

Question 121682: I can't figure out these answers. can you please help? thanks
14. Factor: 18-3n
16. Solve : 8t+11=7t-6
thanks again
Click here to see answer by jim_thompson5910(35256)

Question 121683: I can't fiqure out how to do these problems. can you please help explain them to me? Thanks
17. Solve: 0.1p+2.1=4.6p-1.9+0.5p
18. Translate to an algebraic expression: Twenty less than some number.
Click here to see answer by jainenderkapoor(61)

Question 121685: Can you explain how to do these problems? thanks
19. the second angle of a triangle is two times as large as the first. The third angle is 10 more than the second angle. Find the measure of the first angle.
20. The perimeter of a rectangular writing pad is 28 inches. The length is 1 inch less than twice the width. Find the width.
thanks again
Click here to see answer by Fombitz(32388)

Question 122435: Please help.
A rancher has 100 meters of fencing to enclose two adjacent rectangular corrals.
4x + 3y = 100
Write the area A of the enclosed region as a function of x
So far this is what I’ve got-I figured out the function of x and plugged it into the Area formula, but that’s where I get stuck.
P = 100
4x + 3y = 100
4x + 3y – 3y = – 3y + 100

A = 2x(y)

I know x = 10 and y = 20 works for the perimeter, but don’t know how to write it to show that. When I graph (making A correspond to y and the y correspond to the x), I don’t get the same area as in the table.
I need to add more values to the table.
X Y Area
2 92/3 368/3 ≈123
4 28 224
Thank you for any help you can give!!!
Click here to see answer by scott8148(6628)

Question 123278: your class is building a diorama of the National Mall in Washington, DC using scale 1 in. = 1.5 ft.

On the mall the distance between Washington Monument and the Lincoln Memorial is approximately 3/4 mile. What distance should you use in your diorama??
how would i solve this with out it confusing me cause i don't get math and it's confusing!

Click here to see answer by solver91311(24713)

Question 125595: What is a gemetric construction of an altitude, incenter, circumcenter, and angle bisector? I'm really having trouble trying to understand how to match the figures with the construction. Can anyone please help me?!!!! Thank you.
Click here to see answer by stanbon(75887)

Question 125751: Hello,
My name is Lauren and I have a quick question that I really need help with please....
On my worksheet, there is a Punnett Square. And Inside the Punnett Square is; XX, XY, XX, XY in each square starting from top to bottem. (4 Spaces).
The following questions that I REALLY need help with are these;
1) What is the probability that the child will be a boy?
2) What is the probability that the child will be a girl?
3) Which parent above determines the sex of the child?
I tried my best answering these questions according to the Punnett Square, but I just didn't do it correctly & didn't understand it. Can you Really PLEASE help me?
Thank You Very Much! :)
Email me back ASAP [please].
Thanks Again!
Click here to see answer by applesrbest(7)

Question 125718: A rancher has 100 meters of fencing to enclose two adjacent rectangular corrals. The rancher wants the enclosed area to be 350 square meters. What dimensions should the rancher use to obtain this area?
Click here to see answer by scott8148(6628)