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Reptile [31]
3 years ago
10

Which inequality represents this sentence?

Mathematics
2 answers:
Tanya [424]3 years ago
5 0

Answer:

The answer is 4

Step-by-step explanation:

greater/less than or equal to always has a line underneath.

So that leaves you with either anser 1 or 2.

When delaing with greater than, the arrow will be open towards the number thats the greatest, therefore making 4 the answer.

Tanya [424]3 years ago
5 0

Answer:

4 is the answer to this question

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11. A scuba diver's elevation changed by -12 3/4 feet every minute. This was
Andrei [34K]

Answer:

-8  1/2  ft / min

Step-by-step explanation:

X = second diver rate

  1 1/2 X = -12 3/4

    3/2  X = - 51/4

             X =  - 51/4  * 2/3 = - 102/12 = -8 1/2 ft / min

7 0
2 years ago
A) show that $n(2n + 1)(7n + 1)$ is divisible by 6 for all integers $n$.
goldenfox [79]
Hi,

A)
\dfrac{n(2n+1)(7n+1)}{6} \\

= \dfrac{14n^3+9n^2+n}{6} \\

= \dfrac{12n^3+6n^2}{6} + \dfrac{2n^3+3n^2+n}{6} \\

=2n^3+n^2+ \dfrac{n(2n^2+3n+1)}{6} \\

= 2n^3+n^2+ \dfrac{n(n+1)(2n+1)}{6} \\

= 2n^3+n^2+ 1^2+2^2+3^2+...+n^2\ is\ an\ integer.


B)
Only if n=4*k or n=4*k+1 , k beeing an integer.

8 0
3 years ago
The diameter of a white blood cell under magnification appears to be 0.3 centimeters. What is the diameter of the white blood ce
Svetach [21]

Answer:

3 millimeters.

Step-by-step explanation:

There are 10 millimeters in 1 centimeter.

So the answer is 0.3 * 10 = 3 millimeters.

8 0
3 years ago
Read 2 more answers
Helen wants to find the surface area of the solid pictured on the left, so she constructs a net of the solid pictured on the rig
lana [24]

Answer:

Helen’s net is correct because she reorganized the solid as a triangular prism.

This is because the net has a rectangular base and 4 triangular sides.

Step-by-step explanation:

Rectangular SA one side+1 = 30 x 9 = 270 + 1s= 270 x 2 =540sq^2

Rectangular side one side +1 = 18 x 9 =  162 +1s = 162 x 2 = 324sq^2

2 x 2 triangular sides either end = 4/3 x 15 x 27.3 + 18 x 30.9 = 409.5 (x2) = 819sq^2

=864 + 360

Pyramid area = 1236.71sq^2

Volume = V=1620^3

3 0
3 years ago
Read 2 more answers
Kimmy bought a 12 oz can of peanuts at $4.20. What is the unit price of the<br> peanuts? *
balu736 [363]

Answer:

$0.90 per kilogram

Step-by-step explanation:

5 0
3 years ago
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