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algol13
3 years ago
5

Select the correct answer. What is the value of x? log^2(x+ 7) = 2

Mathematics
1 answer:
Delvig [45]3 years ago
3 0
Answer: x=-3

Solve the equation by rewriting in exponential form using the definition of a logarithm and simplifying.
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The owners of a smoothie shop want the price of each size smoothie to be proportional to the amount of liquid it contains. A sma
Dmitriy789 [7]

Answer:

?

Step-by-step explanation:

Whats the question?

7 0
3 years ago
Consider the Matrix shown below:
shepuryov [24]

Answer:

The value of  B_{2,4} - B_{3,2}  is 3 ⇒ 2nd

Step-by-step explanation:

The dimensions of any matrix are (m × n), where

  • m is the number of its row
  • n is the number of its column

Ex: Matrix A of dimensions (2 × 3) has 2 rows and 3 columns, where

A_{1,1} means the element in the 1st row and 1st column

A_{1,2} means the element in the 1st row and 2nd column

A_{1,3} means the element in the 1st row and 3rd column

A_{2,1} means the element in the 2nd row and 1st column

A_{2,2} means the element in the 2nd row and 2nd column

A_{2,3} means the element in the 2nd row and 3rd column

Now lets solve the problem

∵ The matrix B has 3 rows

∴ m = 3

∵ The matrix B has 4 columns

∴ n = 4

∴ The dimensions of matrix B are (3 × 4)

∵ B_{2,4} means the element in the 2nd row and 4th column

∴  B_{2,4} = 9

∵ B_{3,2} means the element in the 3rd row and 2nd column

∴  B_{3,2} = 6

- Find the value of B_{2,4} - B_{3,2}

∵ B_{2,4} - B_{3,2} = 9 - 6

∴ B_{2,4} - B_{3,2} = 3

3 0
4 years ago
F(x) = 3x; find f(7)
enot [183]
F (7)=3 (7)=21 there's ur amswer
5 0
3 years ago
R(x)=2square root of x S(x)= square root of x (rs)(4)=
Deffense [45]

Answer:

(rs)(4) = 8

Step-by-step explanation:

Given

r(x) = 2\sqrt{x

s(x) = \sqrt x

Required

Determine (rs)(4)

In functions:

(fg)(x) = f(x) * g(x)

This implies that:

(rs)(x) = r(x) * s(x)

Substitute values for r(x) and s(x)

(rs)(x) = 2\sqrt{x} * \sqrt{x}

(rs)(x) = 2(\sqrt{x})^2

(rs)(x) = 2x

Substitute 4 for x

(rs)(4) = 2 * 4

(rs)(4) = 8

5 0
3 years ago
95
mart [117]

Answer:

7p¹⁵/ 3q¹²

Step-by-step explanation:

From the question given above,

28p⁹q¯⁵ / 12p¯⁶q⁷

To know which of option is equivalent to the above expression, we shall simplify the expression as shown below:

28p⁹q¯⁵ / 12p¯⁶q⁷

28p⁹q¯⁵ ÷ 12p¯⁶q⁷

Recall:

Xᵐ ÷ Xⁿ = Xᵐ ¯ ⁿ

Therefore,

28p⁹q¯⁵ ÷ 12p¯⁶q⁷ = (28/12)p⁹ ¯ ¯⁶q¯⁵ ¯⁷

28p⁹q¯⁵ ÷ 12p¯⁶q⁷ = (7/3) p⁹⁺⁶q¯¹²

28p⁹q¯⁵ ÷ 12p¯⁶q⁷ = (7/3) p¹⁵q¯¹²

Recall:

X¯ⁿ = 1/Xⁿ

Therefore,

(7/3) p¹⁵q¯¹² = (7/3) p¹⁵ × 1/q¹²

(7/3) p¹⁵q¯¹² = 7p¹⁵/ 3q¹²

Hence,

28p⁹q¯⁵ / 12p¯⁶q⁷ = 7p¹⁵/ 3q¹²

7 0
3 years ago
Read 2 more answers
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