2 years ago

Find the value of 21 - 18 \ 3•2 18 1/2 2 9

Mathematics

1 answer:

stealth61 [152]2 years ago

5 0

Answer:

use m a t h w a y

Step-by-step explanation:

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5^2 + 12^2 = c^2 please show work I dont quite know how to finish the ending part off help.

Pavel [41]

5^2 + 12^2 = c^2
25 + 144 = c^2
169 = c^2
take the square root of both sides
+ - 13 = c

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2 years ago

Soon-Jin sent out 48 invitations, this was 4/5 of all her invitations. How many invitations will she send out in total?

stepladder [879]

If 4/5 of the total is 48, the total can be found by dividing it by 4 and multiplying it by 5:
48/4 = 12
12*5 = 60.

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2 years ago

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a boy is 26 years younger than his father in 3 years time his age will be one third his father's age. Find the boy's present age

larisa [96]

Answer:

61 years old

Step-by-step explanation:

26 plus 3 is 29 and 29 times 3 is 87 and 87 minus 29 is 61

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2 years ago

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What is the value of c in the equation below? 2^-4(2^2)=a^b=c

Triss [41]

Answer:

The answer is option 4.

Step-by-step explanation:

You have to use Indices Law,

${a}^{m} \times {a}^{n} = {a}^{m + n}$

${a}^{ - n} = \frac{1}{ {a}^{n} }$

So for this question :

${2}^{ - 4} \times {2}^{2}$

$= {2}^{ - 4 + 2}$

$= {2}^{ - 2}$

${a}^{b} = c \\ c = {2}^{ - 2}$

$c = \frac{1}{ {2}^{2} }$

$c = \frac{1}{4}$

5 0

2 years ago

Express and simplest radical form.

strojnjashka [21]

Answer:

4 square root 5 is the answer

root(20*4)

2 × root(5×4)

4×root(5)

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2 years ago