Expert Help with High School Geometry

The dimensions of a rectangular room are 12 feet 10 inches by 10 feet 1 inch. If square tiles of the same size are to cover the floor completely without any overlapping and if only whole tiles will be use, what is the largest possible length of a side of the tile?

D is a point on BC such that AD is the bisector of angleA. Show that:
angle ADC = 90 + $\frac{(angleB-<!--\; -\; -->angleC)}{2}$

There is a rectangular piece of land that will be used for landscaping. It is 22x30 ft. It has a 1 ft. wide trench that is on the inside of the rectangle, and runs along the edges (like a frame) throughout the inner perimeter. Also it has a 4 ft. deep excavation that will be used for planting. What is the cubic feet measurement of this rectangle?
As a side note the answers on the multiple choice test ranged between 300 to 400. Not any less or more. Please advise with solution. I am stumped. None of my answers come close. I understand the volume of a rectangle is LxWxH.

Modeling Costs for the General Store

1. Remember the form of a quadratic equation: ax2+bx+c

2. You will use: W=-.01x2+100x+c where (-.01x2+100x) represents the store's variable costs and c is the store's fixed costs.

3. So, W is the stores total monthly costs based on the number of items sold, x.

4. Think about what the variable and fixed costs might be for your fictitious storefront business - and be creative. Start by choosing a fixed cost, c, between $5,000 and $10,000, according to the following class chart:

5. My last name is Haggins so my fixed cost would be be between $5800-$6400

If your last name starts with the letter Choose a fixed cost between
A-E $5000-$5700
F-I $5800-$6400
J-L $6500-$7100
M-O $7200-$7800
P-R $7800-$8500
S-T $8600-$9200
U-Z $9300-$10,000

6. Post your chosen c value in your subject line, so your classmates can easily scan the discussion thread and try to avoid duplicating your c value. (Different c values make for more discussion.)

7. Your monthly cost is then, W = -.01x^2+100x+c.

8. Substitute the c value chosen in the previous step to complete your unique equation pblackicting your monthly costs.

9. Next, choose two values of x (number of items sold) between 100 and 200. Again, try to choose different values from classmates.

10. Plug these values into your model for W and evaluate the monthly business costs given that sales volume.

11. Discuss results and alternate business decisions.

Compute the area (in Acres) of a rectangular parcel of land having length of 200.013 USft and width of 147.631 USft:
__________ acres

Consider the primes arranged in the usual order 2, 3, 5, 7... It is conjectublack that beginning with 3, every other prime can be composed of the addition and subtraction of all smaller primes (and 1), each taken once. For example:
3 = 1 + 2
7 = 1 - 2 + 3 + 5
13 = 1 + 2 - 3 - 5 + 7 + 11 = -1 + 2 + 3 + 5 - 7 + 11
A. Show that this also holds for 19.
B. Show that this doesn't hold for the first "inbetween" prime 5

A cylindrical tank of height equal to twice the diameter of its base can hold 10 liters (1L=1000 c$m^3$) of water. another cylindrical container with the same capacity has its height equal to three times the diameter of its base. find the ratio of the amount of aluminum required for making the two containers, including the covers.

A 10-m ladder is leaning against a building. The bottom of theladder is 5-m from the building. How high is the top of theladder?

Find the elapsed time from 6:15 a.m. to 2:30 p.m.

$$\begin{gathered} \text{For a given line L, let }{\mathrm{\Omega <!--\; \Omega \; -->}}_l(x)\text{be the relectoin of point X with respect to line L. } \\ {\mathrm{\Omega <!--\; \Omega \; -->}}_l(x)=X\text{ if and only if X is in L.} \\ \text{This is what I did but I don't think you can do what I did. } \\ {\mathrm{\Omega <!--\; \Omega \; -->}}_l(x)=X \\ d({\mathrm{\Omega <!--\; \Omega \; -->}}_l(x),X)=0 \\ d(X,{\mathrm{\Omega <!--\; \Omega \; -->}}_l(x))=X={\mathrm{\Omega <!--\; \Omega \; -->}}_l(x) \end{gathered}$$

How many square feet of paper are needed t cover a cube with a side 10 in long? round off your answer two decimal places. wich one is correct is A. 4.17 sq ft or B 6.94 sq ft C82.52 sq ft or D. 86.40sq ft wich one is it

Show that if angles of a and b radians can both be trisected, so can the angle of a+b radians.

I don't understand why the answer is 1 and not 2. If you plug1 in the area and circumference do not equal the same thing.Although it does with 2...
The question is:
For what nonzero value of r, the radius, is thecircumference of a circle numerically equal to its area?

What's an example of a true conditional statement with a true converse?

Smart Suzie walks at a constant 4 m/s for 30 s, then stops for 10 s, then continues at a constant 3 m/s for another 12s. What is Suzie's average speed? (Do you have enough information to find her distances?)

An angle measures 15 more than twice it's supplement. find themeasure of it's supplement.

1) Show that, if G is a connected graph with minimum degree k, then ?(G) <=k.

What is the volume of a right right pyramid whose base is a square with a side 6m long and whose altitude is aqual to base side? wich one is A 36M OR B 72M OR C 108M OR D 216M 3 SQUARE WICH ONE IS IT

If the sum of the measures of two angles equals _______, the angles are called supplementary angles.
A 270
B 90
C 180
D 360

Use the Exterior Angle Theorem to prove that in any triangle ABC,
m(Angle A) + m(Angle B) + m(Angle C) < 270 degrees.