All categories

3 years ago

Estimate the product 879x8

2 answers:

8 0

To estimate it, you just have to think. 879 is basically 900. 9 x 8 is 72 and then annex the two zeroes, getting roughly 7,200.

AnnZ [28]3 years ago

7 0

7032 is the answer I hope it helps you

You might be interested in

3:1 =6:x what is the value of x

AleksAgata [21]

Answer:

x = 2

Step-by-step explanation:

$\frac{3}{1} = \frac{6}{x}$

$3x = 6$

$x = 2$

8 0

3 years ago

Read 2 more answers

The rectangular floor of a classroom is 28 feet in length and 32 feet in width. A scale drawing of the floor has a length of 7 i

earnstyle [38]

I believe it is 56 square inches

8 0

3 years ago

I need help with this question please

ohaa [14]

Answer:

1) 0+2/2 = 1, 2+(-2)/2 = 2-2/2 = 0 so... midpoint is 1,0

2) 5+1/2 = 3, 6+(-2)/2 = 6-2/2 = 2 so... midpoint is 3,2

The line is slanting ( starting of line is downwards going to the left bottom and the top of the line is facing upwards going to the top right )

HOPE THIS HELPS!!

4 0

3 years ago

If sin theta = -(sqrt(3))/2 and pi < theta < (3pi)/2, what are the values of cos theta and tan theta?

Gwar [14]

For $\pi$ , we expect $\cos\theta$ . Then recalling that $\sin^2\theta+\cos^2\theta=1$ , we have

$\cos\theta=-\sqrt{1-\sin^2\theta}=-\dfrac12$

Then by definition of tangent,

$\tan\theta=\dfrac{\sin\theta}{\cos\theta}=\dfrac{-\frac{\sqrt3}2}{-\frac12}=\sqrt3$

3 0

4 years ago

Read 2 more answers

A sanitary landfill has available space of 16.2 ha at an average depth of 10 m. Seven hundred sixty-five (765) cubic meters of s

AfilCa [17]

Answer:

16.3 years

Step-by-step explanation:

1 ha = 10,000 m^2

The total capacity of the landfill is:

$C = 16.2*10,000*10 = 1,620,000\ m^3$

If waste is compacted to twice its delivered density, its volume is half of the delivered volume. Assuming that a year has 52 weeks, the volume of compacted solid waste dumped per year is:

$V=52*(5*0.5*765)\\V=99,450\ m^3$

The expected life of the landfill is given by its capacity divided by the yearly volume:

$L=\frac{C}{V}=\frac{1,620,000}{99,450} \\L=16,3\ years$

The landfill has an expected life of 16.3 years.

6 0

3 years ago