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Verizon [17]
3 years ago
13

Question

Mathematics
1 answer:
gregori [183]3 years ago
8 0

Answer:

30.1%

Step-by-step explanation:

870=100%

262=x

262×100÷870= 30.11494252873%

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Can anybody do all of number 1??
MAXImum [283]

Answer:

You use the formulas for the shapes

Cylinder= 2×π×r×h+2×π×r²               π×r²×h

Cone= \pi*r(r+\sqrt{ h^{2} +r^{2}} )           π×r²×\frac{h}{3}

Square Prism= 2×a²+4×a×h                       a²×h

                            ↑a=base edge

Step-by-step explanation:

                           Surface Area  Volume

Cylinderical Head   ≈282.74                   ≈314.16  

Conical Hat                     ≈170.13                     ≈78.54

Right Cylinder Torso      ≈471.24                     ≈785.4  

Right Cylinder Arm         ≈56.55                      ≈25.13

Square Prism Leg           =224                           =192

6 0
4 years ago
I am doing a quiz please help
vagabundo [1.1K]

Answer:

true

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is the volume of a cube with a side length of 7 centimeters?
Luba_88 [7]

Answer:343cm^3

Step-by-step explanation: looking at the question given by finding the

Volume of a cube=l^3

The Length =7cm

Then we are going to have;

V=7cmx7cmx7cm

Therefore, our answer will now be

V=343cm^3

6 0
3 years ago
The height (in feet) of a golf ball hit into the air is given by h = 64t - 16t^2, where "t" is the number of seconds elapsed sin
dalvyx [7]

Answer:

I like golf

Step-by-step explanation:

I know this because I like golf

4 0
3 years ago
Element X is a radioactive isotope such that every 22 years, its mass decreases by
musickatia [10]

Answer: The time taken for the mass to reduce from 50 g to 41 g is 6 years

Step-by-step explanation:

Expression for rate law for first order kinetics is given by

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  

t = age of sample

a = let initial amount of the reactant  

a - x = amount left after decay process  

a) for completion of half life:

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

t_{\frac{1}{2}}=22 years

k=\frac{0.693}{t_{\frac{1}{2}}}=\frac{0.693}{22}=0.0315years^{-1}  

b) for mass to reduce from 50 g to 41 g

t=\frac{2.303}{0.0315}\log\frac{50}{41}

t=6years  

The time taken for the mass to reduce from 50 g to 41 g is 6 years

8 0
3 years ago
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