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Solnce55 [7]
3 years ago
10

Round to the nearest place value and write in scientific notation 1,402,941,487

Mathematics
1 answer:
maksim [4K]3 years ago
8 0

Answer: d

Step-by-step explanation:

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3(2x + 6) = 2(4x – 5)
maxonik [38]

Answer:

x = 14

....................              

6 0
3 years ago
Please help me find the volume
SSSSS [86.1K]

Answer:

C,. 3 3/4

Step-by-step explanation:

length times with times hight

1 1/4 x 1 1/2 x 2

convert everything to same denominator

1 1/4

1 2/4

1 4/4

solve

1 1/4 x 1 2/4 x 1 4/4

4 0
3 years ago
Calculate the sum of the INTERIOR angles of a 16-gon.
Lynna [10]
The answer is 2520 degrees
4 0
3 years ago
a) Estimate the volume of the solid that lies below the surface z = 7x + 5y2 and above the rectangle R = [0, 2]⨯[0, 4]. Use a Ri
SSSSS [86.1K]

In the x direction we consider the m=2 subintervals [0, 1] and [1, 2] (each with length 1), while in the y direction we consider the n=2 subintervals [0, 2] and [2, 4] (with length 2). Then the lower right corners of the cells in the partition of R are (1, 0), (2, 0), (1, 2), (2, 2).

Let f(x,y)=7x+5y^2. The volume of the solid is approximately

\displaystyle\iint_Rf(x,y)\,\mathrm dx\,\mathrm dy\approx f(1,0)\cdot1\cdot2+f(2,0)\cdot1\cdot2+f(1,2)\cdot1\cdot2+f(2,2)\cdot1\cdot2=\boxed{164}

###

More generally, the lower-right-corner Riemann sum over m=\mu and n=\nu subintervals would be

\displaystyle\sum_{m=1}^\mu\sum_{n=1}^\nu\left(7\frac{2m}\mu+5\left(\frac{4n-4}\nu\right)^2\right)\frac{2-0}\mu\frac{4-0}\nu=\frac83\left(101+\frac{21}\mu+\frac{40}{\nu^2}-\frac{120}\nu\right)

Then taking the limits as \mu\to\infty and \nu\to\infty leaves us with an exact volume of \dfrac{808}3.

7 0
3 years ago
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
dedylja [7]

Answer:

A = 6000

B = 1500

C = 90

D = 800

E = 200

F = 12

6 0
3 years ago
Read 2 more answers
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