2 years ago

Select ALL statements that show correct reasoning for finding 15 divided by 2/9.

1 answer:

7 0

The answer is (B) multiply 15 by 9, then divide by 2
Explanation
15 divided by 2/9 equals 67.5 and answer B equals 67.5 because 15 times 9 is 135 then 135 divided by 2 equals 67.5

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Rationalize the denominator and simplify. Square root of 2/5

liubo4ka [24]

Answer:

√10

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Step-by-step explanation:

√(2/5) has a radical in the denominator. We want to eliminate that radical. To do this, multiply both √2 and √5 by √5:

√2·√5

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This simplifies to

√10

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6 0

4 years ago

What is 4/10 using simplest form

solmaris [256]

2/5

Step-by-step explanation:

4 ÷ 2 = 2

10 ÷ 2 = 5

Answer is 2/5

6 0

2 years ago

Read 2 more answers

Let a, b, c, and d be nonzero real numbers. If the quadratic equation ax (cx + d) = –b (cx + d) is solved for x, which of the fo

gayaneshka [121]

Answer:

$x_1=-\frac{b}a,x_2=-\frac{d}c$

Step-by-step explanation:

Solving for x:

$ax(cx + d) =-b(cx +d)\\ax(cx + d)+b(cx+d)=0\\(ax+b)(cx+d)=0$

In this form is easy to identify the factors of the quadratic function: $(ax+b)(cx+d)$ . The two solutions are the values that make each of the factors equals to zero.