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Crazy boy [7]
3 years ago
11

20 multiplication facts in one minute. How long to take him to complete 35 multiplication facts

Mathematics
1 answer:
arlik [135]3 years ago
6 0
It will take 700 minutes
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The floor of the gazebo shown is a regular octagon. Each side of the floor is 8 feet, and the area is about 309 square feet. You
Nimfa-mama [501]

Answer:

Area: 3.7 ft²

Ratio: 73.14 : 1

Step-by-step explanation:

Perimeter of an octagon = 8*side

Replacing with perimeter = 7 ft:

7 = 8*side

side = 7/8 ft = 0.875 ft

that is, each side of the model is 7/8 ft length.

Area of an octagon = 2*(1 + √2)*side²

Area of an octagon = 2*(1 + √2)*(7/8)²

Area of an octagon = 3.7 ft²

Perimeter of real gazebo = 8*8 = 64 ft

Then, the ratio of the perimeters (in feet) of the real gazebo floor to the model gazebo floor is 64:0.875. Multiplying each term by 8/7, we get 73.14:1

8 0
3 years ago
Which is a reasonable frist step that can be used to solve the equation 4x+3(x+2)=5(2x-3)
vagabundo [1.1K]

Answer:

they are not equal if that was what you were looking for

Step -by-step explanation:

8 0
3 years ago
Read 2 more answers
Could somebody help me with this geometry question?
BlackZzzverrR [31]

Answer:

y=3/5X+5/6

Step-by-step explanation:

Y=ax+b

(-4;-3)  (6:3)

-3=-4a+b

3=6a+b

3-6a=-3+4a

6=10a

a=6/10=3/5

b=5/6

3 0
3 years ago
According to u.s. postal regulations, the girth plus the length of a parcel sent by mail may not exceed 108 inches, where by "gi
Pepsi [2]
Let x represent the side length of the square end, and let d represent the dimension that is the sum of length and girth. Then the volume V is given by
  V = x²(d -4x)
Volume will be maximized when the derivative of V is zero.
  dV/dx = 0 = -12x² +2dx
  0 = -2x(6x -d)
This has solutions
  x = 0, x = d/6

a) The largest possible volume is
  (d/6)²(d -4d/6) = 2(d/6)³
  = 2(108 in/6)³ = 11,664 in³

b) The dimensions of the package with largest volume are
  d/6 = 18 inches square by
  d -4d/6 = d/3 = 36 inches long

8 0
3 years ago
Find the midpoint from (-2,-2) to (6,6)
timama [110]
(2,2)


(x1+x2)/2, (y1-y2)/2
(-2+6)/2=(2)
(-2+6)/2=2
4 0
3 years ago
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