3 years ago

Which of the following is equivalent to sqrt-75

Mathematics

1 answer:

Nina [5.8K]3 years ago

4 0

Answer:

Step-by-step explanation:

$\sqrt{-75} = \sqrt{-1 \times 75} = \sqrt{-1 \times 25 \times 3} = 5i\sqrt{3}$

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For the geometric sequence of a1=2 and r=2 find a5

Brrunno [24]

Answer:

$a_5 = 32$

Step-by-step explanation:

The nth term for the geometric sequence is given by:

$a_n = a_1 \cdot r^{n-1}$

where,

$a_1$ is the first term

r is the common ratio

n is the number of terms.

As per the statement:

For the geometric sequence of $a_1=2$ and r=2

We have to find $a_5$

for n = 5;

$a_5=a_1 \cdot r^{n-1}$

Substitute the given values we have;

$a_5 = 2 \cdot 2^4 = 2 \cdot 16$

⇒ $a_5 = 32$

Therefore, the value of $a_5$ is, 32

3 0

3 years ago

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pshichka [43]

Answer:

Step-by-step explanation:

8 0

3 years ago

Name a fraction equal to 1/2 with a denominator of 9

kolezko [41]

4.5/9. It is technically an improper fraction but it still counts.

3 0

2 years ago

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What is the volume of a rectangular prism with length 12 in., height 16 in., and width 13 in.?

Lilit [14]

Answer:

2496in3

Step-by-step explanation:

12x16x13=2496in3

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2 years ago

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the variables x and y vary inversely with a constant variation of 7. Use the variation formula, k=xy, to find why when x=9

dolphi86 [110]

1.Make y the subject

k = xy

k/x = xy/x

y = k/x

2.Substitute

y = k/x

y = 7/9

y = 0.777......

y = 0.8 (Answer)

To confirm

k = xy

k = 9 × 0.8

k = 7.2

k = 7 (constant)

Hope it helps☺

7 0

2 years ago