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Alina [70]
3 years ago
14

The mass of a block of stone is 4,500 kg. If the block has a volume of 0.5m3, what is the density? Remember , density is mass pe

r unit of volume.
Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
3 0
Density = kg/m3 or g/cm3

hence,
4500 ÷ 0.5 = answer.
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Simplify the expression 6^3 + 5(4 - 2).<br><br>28<br>36<br>226<br>234<br><br>​
valina [46]

Answer:

226

Step-by-step explanation:

6^3 + 5(4 - 2)

PEMDAS says parentheses first

6^3 + 5(2)

Then exponents

216 +5(2)

Then multiply

216+10

Then add

226

5 0
2 years ago
Read 2 more answers
Can someone please help me with this!
Gelneren [198K]

Answer:

Sue takes 3.3 hours to kayak 11 miles & marty takes 3.5 hours on her horse

Step-by-step explanation:

Sue's kayaking path is the hypotenuse of a right triangle.

so we use a squared + b squared = c squared

10.5^2+3.2^2=c^2

110.25+10.24=c^2

120.49=c^2

10.9768=c

and then because it said to round to the nearest tenth that would be 11.0 miles.

She's going at an average speed of 3.3 mph

that means it takes her about .3 hours to do 1 mile

so it would take her 3.3 hours to go 11 miles

marty is going at an average speed of 7 mph

so she takes 0.14 hours to go 1 mile

0.14 x 25 = 2.5

3 0
3 years ago
The area of the shaded region of circle O is 9π m2
blsea [12.9K]
For full circle area is π * R² [here R = radius],
for a sector of circle with angle β, area will be = (β/2) * R², β is in radian,
here let β = 22.5° = (π * 22.5/180) = π/8 radian,
now [(π/8)/2] * R² = 9π, [π/16] * R² = 9π
R² = 9 * 16 = 144, 
R = √144 = 12 m
5 0
3 years ago
How to find the circumference of a circle​
Romashka [77]
  1. C = πd. In this equation, "C" represents the circumference of the circle, and "d" represents its diameter. That is to say, you can find the circumference of a circle just by multiplying the diameter by pi. Plugging π into your calculator will give you its numerical value, which is a closer approximation of 3.14 or 22/7.
  2. The radius is half as long as the diameter, so the diameter can be thought of as 2r. Keeping this in mind, you can write down the formula for finding the circumference of a circle given the radius: C = 2πr. In this formula, "r" represents the radius of the circle. Again, you can plug π into your calculator to get its numeral value, which is a closer approximation of 3.14.
8 0
3 years ago
Find the length of the diagonal of a rectangular football pitch with sides 46.6 m and 78.9 m.
ICE Princess25 [194]

Answer:

d≈91.63m

Step-by-step explanation:

d=w2+l2=78.92+46.62≈91.63389m

7 0
2 years ago
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