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4 years ago

Using the associative property of multiplication, which expression is equivalent to 5(9x)?

2 answers:

8 0

The associative property states that you can move parenthesis around without affecting the solution to the equation/expression.
Example:
5 • (3 • 2) = (5 • 3) • 2
Which is also written as 5(3•2) = (5•3)2

A is not correct either way since adding and multiplying would have completely different results.
B moves the values, not the parenthesis, although it would be the same.
C uses the distributive property, not associative.
D uses the associative property and is correct.
So the answer is D.

Marrrta [24]4 years ago

3 0

D (5x9)x because the parentheses are switched but the values are the same

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If f(x) = 3x+2 then what is f(2)+1

Vilka [71]

Answer: 9

Solving Steps:
f(x) = 3x + 2
f(2) = 3*2 + 2
f(2) = 6 + 2
f(2) = 8
f(2) + 1
8 + 1 = 9

3 0

3 years ago

Read 2 more answers

Write an equation of the line that is perpendicular to 3x + 9y = 7 and passes through the point (6, 4)

andrezito [222]

The perpendicular line will have the x and y coefficients swapped and one of them negated. We can write the desired line as
9(x -6) -3(y -4) = 0
where the coordinates of the point of interest are (6, 4).
Dividing by 3, this is
3(x -6) -(y -4) = 0
3x -y = 14

An equation for the line of interest is ...
3x -y = 14

8 0

3 years ago

Read 2 more answers

Evaluate the expression 15x plus 4 for x equals -1 1/2

Angelina_Jolie [31]

Answer:

- $\frac{11}{30}$

Step-by-step explanation:

15x + 4 = -1 $\frac{1}{2}$

15x = -5 $\frac{1}{2}$

x = - $\frac{11}{2}$ × $\frac{1}{15}$

x = - $\frac{11}{30}$

5 0

3 years ago

If the points (4,2) (6,3) and (8,4) are on the graph of f, give three points on the graph of f^-1

Stels [109]

let's recall that an inverse function has the same pair of coordinates as the original function, but backwards, or namely the inverse's range is the original's domain.

$\bf \stackrel{f(x)}{\begin{array}{|cc|ll} \cline{1-2} 4&2\\ 6&3\\ 8&4\\ \cline{1-2} \end{array}}\qquad \qquad \stackrel{f^{-1}(x)}{\begin{array}{|cc|ll} \cline{1-2} 2&4\\ 3&6\\ 4&8\\ \cline{1-2} \end{array}}$

8 0

3 years ago

GEOMETRY. I will give brainliest

lubasha [3.4K]

Given:

A figure of a circle. A secant and tangent of the given circle.

To find:

The correct equation.

Solution:

According the intersecting tangent secant theorem, the square of tangent is equal to the property of external segment of secant and the measure of the secant.

Using intersecting tangent secant theorem, we get

$6^2=x(x+5)$

It can be written as

$x(x+5)=6^2$

The required equation is $x(x+5)=6^2$ .

Therefore, the correct option is B.

8 0

3 years ago