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aleksklad [387]
3 years ago
8

Help please anybody plzzzzzz hel[p

Mathematics
2 answers:
postnew [5]3 years ago
7 0

Answer:

0.75 - 0.25 + 1/2

convert the decimals to fractions

that's

0.75 = 3/4

0.25 = 1/4

We get

3/4 - 1/4 + 1/2

Find the common denominator which is 4

3/4 - 1/4 + 1/2 = 3 - 1 + 2 / 4

=4/4

= 1

The final answer is 1

Hope this helps

Aleksandr [31]3 years ago
4 0

Answer:

1

Step-by-step explanation:

.75-.25 is .5

1/2 is equal to .5 so .5 +.5 is 1

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The radius of a circle is 2.9 in. Find the circumference to the nearest tenth (help please)
nika2105 [10]

Answer:4.18

Step-by-step explanation:

2.9+2/9

4 0
3 years ago
Read 2 more answers
The radius of a circle is 8 kilometers. What is the area?
Scorpion4ik [409]

Answer:

Area of the circle=200.96 km^2

Step-by-step explanation:

Area of a circle=\pi *r*r

For radius(r)=8 km

The area of the circle is :

                 =\pi *8*8

As:    

    \pi =\frac{22}{7}=3.14

Area of the circle:

                        =3.14*8*8\\\\=3.14*64\\\\=200.96km^2

The Area of the circle with the radius of 8km is 200.96 km^2

7 0
2 years ago
Read 2 more answers
Find the median and mean of the data set below:<br> 36,4,27,46,46
adelina 88 [10]

Answer:

The mean is

31.8

The median is 36

5 0
2 years ago
What is the answer to 16x + 10-10x=2x+14
dem82 [27]

Answer:

1

Step-by-step explanation:

6x+10=2x+14

6x-2x=14-10

4x=4

x=1

7 0
3 years ago
2. The height of one square pyramid is 24 m. A similar pyramid has a height of 8 m. The volume of the larger pyramid is 648 m3.
Dmitrij [34]
Larger PyramidHeight 24 Volume 648

Pyramid Volume = (Area of the Base * Height) ÷ 3648 = Base Area * 24 / 3Base Area = 648 * 3 / 24Base Area = 648 / 8Base Area = 81Base Length = 9
a) The Scale Factor between the Small & Large PyramidLength - 3LATERAL Area - 9Volume - 27

Slant Height^2 = 4.5^2 + 24^2Slant Height^2 = <span> <span> 596.25 </span> </span> <span><span>Slant Height^2 = 24.4182308941 </span> </span>
b)
Large Pyramid Area = (½ * Perimeter of Base * Slant Height) + Base AreaLarge Pyramid Area = (.5 * 36 * <span>24.4182308941) + 81
</span>Large Pyramid Area = 439.5281560938 + 81
Large Pyramid TOTAL Area = <span> <span> 520.5281560938 </span> </span> <span>Large Pyramid LATERAL Area =<span> 439.5281560938 </span> </span>


**********************************************************************************c)
Smaller PyramidHeight 8Surface Area = 124
This pyramid has dimensions that are one third of the larger pyramid.Therefore, it has a base length of 3.Base Area = 9.
Its base perimeter would be 12.
Small Pyramid Volume = (Area of the Base * Height) ÷ 3Small Pyramid Volume = ( 9 * 8 ) / 3Small Pyramid Volume = 72 / 3
c) Small Pyramid Volume =24 cubic meters

d) Ratio of larger pyramid volume to smaller pyramid volume648 / 24 = 27The reason? Volume is a 3 dimensional quantity.  The Larger pyramid is 3 times larger in terms of the base measurement.9 meters vs 3 meters - a factor of 3When we compare volumes, we have to cube this factor.3^3 = 27

Source : http://www.1728.org/volpyrmd.htm

3 0
3 years ago
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