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3 years ago

Which expression is equivalent to 2^-3/2^-5

Mathematics

1 answer:

Aleks04 [339]3 years ago

3 0

Answer:

2^2

Step-by-step explanation:

2^-3/2^-5

We know that a^b / a^c = a^(b-c)

2^-3/2^-5 = 2^( -3 - -5) = 2^(-3+5) = 2^2

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What is the sum of sqrt -2 and sqrt -18

Assoli18 [71]

Answer:

4i sqrt(2)

Step-by-step explanation:

sqrt(-2) + sqrt(-18)

We know sqrt(ab)= sqrt(a) sqrt(b)

sqrt(-1)sqrt(2) + sqrt(9) sqrt(-2)

sqrt(-1)sqrt(2) + sqrt(9) sqrt(2)sqrt(1)

We know the sqrt(-1) is equal to i

i sqrt(2) +3 sqrt(2) i

i sqrt(2) +3i sqrt(2)

4i sqrt(2)

3 0

3 years ago

Ms Rochelle wants to put 29 students into groups of 6. How many groups of 6 can she make ?

garik1379 [7]

Start by dividing 29/6, if you know your multiples you know 5*6 is 30, and since 29 is less than thirty, 29/6 has to be less than 5. since you can only have a whole number of groups, she can only make 4 groups of six

ANSWER: 4

5 0

3 years ago

if a tree diagram were drawn to determine the number of possible outcomes when choosing one of 5 salads, one of 6 entrees, and o

hram777 [196]

Answer:

270

Step-by-step explanation:

Just multiply.

5*6*9=270

6 0

4 years ago

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A linear set of points with a unique starting point and extending infinitely in one direction what term matches the definition?

bija089 [108]

Answer:- Option A "ray" is the right term which matches with the definition.

Explanation:-

A ray is a line that has one fixed endpoint, and extends infinitely along the line from the fixed endpoint.

Therefore, the term which matches with the given definition is "ray".

Thus A linear set of points with a unique starting point and extending infinitely in one direction is called a ray.

5 0

3 years ago

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The ratio of the number of cookies to the number of candies in different gift boxes is 5:7. Which table best shows the number of

V125BC [204]

Answer:

-------------------------------------------------------------------

Ratio

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cookies : candies

5 : 7

--------------------------------------------------------------------

Multiply Ratio by 2

--------------------------------------------------------------------

cookies : candies

5 x 2 : 7 x 2

10 : 14

--------------------------------------------------------------------

Multiply Ratio by 3

--------------------------------------------------------------------

cookies : candies

5 x 3 : 7 x 3

15 : 21

--------------------------------------------------------------------

Multiply Ratio by 4

--------------------------------------------------------------------

cookies : candies

5 x 4 : 7 x 4

20 : 28

--------------------------------------------------------------------

Answer: C

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Step-by-step explanation:

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3 years ago

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