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Nadusha1986 [10]
4 years ago
7

Which property justifies the following statement? 4(x + 5) = 4(x) + 4(5)

Mathematics
1 answer:
Hatshy [7]4 years ago
5 0

A4(3) - 2 = 3(3) + 1

12 - 2 = 9 + 1

10 = 10

Step-by-step explanation:

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On October 23, 2011, one U.S. dollar was worth 49.84 Indian rupees.
Advocard [28]

Answer:

A. 5830.7656775

B. 6150.95224

Step-by-step explanation:

4 0
3 years ago
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How can you use proportional reasoning to solve problems?
qwelly [4]

Proportional thinking analyzes proportions to address questions. We can utilize relative thinking to tackle a few inquiries straightforwardly, for example, which size of clothing cleanser is the least expensive per load, for sure the components of the model vehicle ought to be.

7 0
2 years ago
Find the directional derivative of f(x,y,z)=z3−x2yf(x,y,z)=z3−x2y at the point (−5,5,2)(−5,5,2) in the direction of the vector v
olga_2 [115]

We are given

f=z^3 -x^2y

Firstly, we can find gradient

so, we will find partial derivatives

f_x=0 -2xy

f_x=-2xy

f_y=0 -x^2

f_y=-x^2

f_z=3z^2

now, we can plug point (-5,5,2)

f_x=-2*-5*5=50

f_y=-(-5)^2=-25

f_z=3(2)^2=12

so, gradient will be

gradf=(50,-25,12)

now, we are given that

it is in direction of v=⟨−3,2,−4⟩

so, we will find it's unit vector

|v|=\sqrt{(-3)^2+(2)^2+(-4)^2}

|v|=\sqrt{29}

now, we can find unit vector

v'=(\frac{-3}{\sqrt{29} } , \frac{2}{\sqrt{29} } , \frac{-4}{\sqrt{29} })

now, we can find dot product to find direction of the vector

dir=(gradf) \cdot (v')

now, we can plug values

dir=(50,-25,12) \cdot (\frac{-3}{\sqrt{29} } , \frac{2}{\sqrt{29} } , \frac{-4}{\sqrt{29} })

dir=(-\frac{150}{\sqrt{29} } - \frac{50}{\sqrt{29} } - \frac{48}{\sqrt{29} })

dir=-\frac{248\sqrt{29}}{29}.............Answer



7 0
4 years ago
Read 2 more answers
How do I find zeros of a polynomial
maw [93]
You can find the zeros of a polynomial by first factoring it completely. Then, you use the Zero Product Property (Z.P.P) to make each term equal to zero. Finally, you just solve for the given variable, and you will have the zeros. 
For example:
x²+4x+4 = 0
1. Factor The Polynomial:
(x + 2)(x + 2) = 0
2. Use Zero Product Property:
x + 2 = 0
x + 2 = 0
3. Solve for variable:
x = -2, -2
Therefore, the zeros of the polynomial are -2, -2.
Hope I explained it well and have a fantastic day!
7 0
3 years ago
Please help quick !!
puteri [66]
1) sin(60 degrees)=<span>0.86602540378 (Make sure your calculator is in degrees, not radians)
</span>√3/2
√3=<span>1.73205080757
</span><span>1.73205080757/2
</span>=0.866025404
1) IS CORRECT
Solve the rest using the same technique.

Hope this helps! A thanks/brainliest answer would be appreciated :)
6 0
3 years ago
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