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lidiya [134]
3 years ago
13

I don’t understand how to solve this

Mathematics
1 answer:
Zanzabum3 years ago
6 0

Answer:

Step-by-step explanation:

The answer is 7 Units.

The way to get this is by multiplying 4 x3

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Pls help me <br><br> Given the figure below, find the values of x and z.
gtnhenbr [62]

Step-by-step explanation:

the solution is in the picture

4 0
2 years ago
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The isotope cobalt-60 has a nuclear mass of 59.933820 u
Anit [1.1K]

To start this question, we should know what is the atomic number of cobalt. The atomic number (the number of protons) of Cobalt is Z =27.

Now, we know that a Cobalt 60 isotope means an isotope of Cobalt whose Atomic Mass is 60.

Thus, in a Cobalt 60 isotope, the number of neutrons in the nucleus are

60-Z=60-27=33

From the question we know that the given nuclear mass is 59.933820 u.

Now, the mass defect of Cobalt 60 can be easily calculated by adding the masses of the protons and the neutrons as per our calculations and subtracting the given nuclear mass from it.

Thus,

Mass Defect = (Number of Protons Mass of Proton given in the question) + (Number of Neutrons Mass of Neutron given in the question)-59.933820 u

\therefore 27\times 1.007825+33\times 1.008665-59.933820=0.5634 u

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In eV, the Mass Defect is 931.5MeV\times 0.5634=534.807 MeV

6 0
3 years ago
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What is -9(4f-6f)+(-15f)<br><br> I need the answer ASAP
SIZIF [17.4K]
The answer is 3f
<span>=<span><span>18f</span>+<span>−<span>15f</span></span></span></span><span>=<span>(<span><span>18f</span>+<span>−<span>15f</span></span></span>)</span></span><span>=<span>3<span>f</span></span></span>
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Shtirlitz [24]

Answer:

Option B, 8 / 6

Step-by-step explanation:

Tangent = Opposite / Adjacent

Tangent of ∠A = Opposite / Adjacent

Tan(A) = 8 / 6 which is the same as Option B

Hope this helps!

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3 years ago
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musickatia [10]
It's 6x-18
Hope this helps
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3 years ago
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