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Bogdan [553]
3 years ago
15

Question in the photo

Mathematics
1 answer:
ivann1987 [24]3 years ago
6 0

Answer:

  the exponent of x is 4

Step-by-step explanation:

The applicable rules of exponents are ...

  (a^b)/(a^c) = a^(b-c)

  a^-b = 1/a^b

__

  \dfrac{6xy^{-2}}{x^{-3}}=\dfrac{6x^{1-(-3)}}{y^2}=\dfrac{6x^4}{y^2}

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Help: The ratio of areas of two similar figures is 8:18. The perimeter of the larger figure is 24, find the perimeter of the sma
Georgia [21]

Lets use proportion

let the perimeter of the smaller figure be 'x'

8:18::x:24

Product of means=product of extreames

24 x 8= 18 x 'x'

192=18x

x=10.6666667 units

Ans: the perimeter of the smaller figure is 10.6666667 units

3 0
3 years ago
If D is an n × n diagonal matrix with entries dii, then det D = d11d22 ∙ ∙ ∙ dnn. Verify this theorem for 2 × 2 matrices.
nadya68 [22]

Answer:

Verified

Step-by-step explanation:

Let the diagonal matrix D with size 2x2 be in the form of

\left[\begin{array}{cc}a&0\\0&d\end{array}\right]

Then the determinant of matrix D would be

det(D) = a*d - 0*0 = ad

This is the product of the matrix's diagonal numbers

So the theorem is true for 2x2 matrices

8 0
3 years ago
Evaluate the expression. Enter your answer in the box. 2³ =
masya89 [10]
2^3 = 2 x 2 x 2 = 8

your answer is 8

hope this helps
3 0
4 years ago
Read 2 more answers
Please answer the question fast
Vlad [161]

Answer:

(-7,4] or -7 < X ≥ 4

Step-by-step explanation:

The domain is all applicable X values for the function. In this function, X can be greater than but not including -7, but has to be less than 4 (inclusive).

You can write your answer as (-7,4] or -7 < X ≥ 4.

5 0
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Answer:

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