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chubhunter [2.5K]
4 years ago
13

Reina and Sam are multiplying (8^4)^5 (7^3)^9 Is either of them correct?

Mathematics
1 answer:
PilotLPTM [1.2K]4 years ago
6 0

Answer:

Sam is correct.

Step-by-step explanation:

Exponent rules state that when an number with an exponent is raised to a power, the two exponents multiply.  For example, a^2^2=a^4.

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a discount store marks up the merchandise it sells by 55%. If the wholesale price of a particular item is $25, what should be th
Nesterboy [21]
First find out what 55% of $25 is by doing 25 times .55 which is 13.75, then add 25+13.75 and that should be your answer
7 0
3 years ago
If a family eats out 4 nights a week, what is the ratio of eating out nights to not eating out nights per week?
hjlf

Answer: 4:3

eats out : not eating out

Step-by-step explanation:

so theres 7 days in a week so you do simple subtraction and do 7-4=3

then you get the remaining days of the week that you dont eat out.

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3 years ago
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5 0
3 years ago
Use the divergence theorem to calculate the surface integral z s ~f d~s ; that is, calculate the ux of ~f across s, where ~f = z
MAXImum [283]
By the divergence theorem,

\displaystyle\iint_S\mathbf f\cdot\mathrm d\mathbf S=\iiint_R(\nabla\cdot\mathbf f)\,\mathrm dV

where R is the solid whose boundary is S. We have

\nabla\cdot\mathbf f=\dfrac{\partial z}{\partial x}+\dfrac{\partial y}{\partial y}+\dfrac{\partial zx}{\partial z}=1+x

so we set up the volume integral as

\displaystyle\iiint_R(\nabla\cdot\mathbf f)\,\mathrm dV=\int_{x=0}^{x=1/a}\int_{y=0}^{y=(1-ax)/b}\int_{z=0}^{z=(1-ax-by)/c}(1+x)\,\mathrm dz\,\mathrm dy\,\mathrm dx
=\dfrac{4a+1}{24a^2bc}
7 0
4 years ago
solve the equation using the Quadratic Formula. Round your solutions to the nearest tenth if necessary.) please help I need expl
Viefleur [7K]

Answer:

Quadratic Formula x = [-b +- Sq root (b^2 - 4ac)] / 2a

In this example a= 2 b= -6 c= 5

x = [- - 6 +- Sq root ((-6^2) - 4 *2*5)] / 2*2

x = [6 +-sq root (36 -40)] / 4

x = 6 +- 2i / 4

x1 = 1.5 + .5i  

x2 = 1.5 -.5i

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
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