Which expression is equivalent

Mathematics

1 answer:

eimsori [14]3 years ago

5 0

2nd option

Step-by-step explanation:

idk i just guessin

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9213x5 is a multiple of 9 find the value of x

Lina20 [59]

Answer:

$\boxed{\textsf{The value of x is \textbf{7}.}}$

Step-by-step explanation:

Given that 9213x5 is a multiple of 9 and we need to find out the value of x .So the rule for divisibility for 9 is :-

Test for Divisibility by 9 :-

A number is divisible by 9 if the sum of the digits is divisible by 9 .

Here the sum of the digits is :-

$\sf\implies Sum_{(digits)}= 9+2+1+3+x+5=\pink{20+x}$

Now here to make 20 +x divisible by 9 is should be equal to 27 since 27 is the nearest smallest multiple of 9 .

$\sf\implies 20 + x = 27 \\\\\sf\implies x = 27-20 \\\\\sf\implies\boxed{\pink{\sf x = 7 }}$

4 0

3 years ago

Statistics

olga55 [171]

A. The probability that the first man is colorblind is .08, and the probability that the second is colorblind is also .08, so the probability that both are colorblind is .08*.08=.0064.

b. The probability that he IS colorblind is .08, so the probability that he is not is 1-.08=.92.

c. Similarly to part a, we can calculate this probability as .92*.92=.8464.

6 0

4 years ago

How to find length of the side of a cube with the given volume? ( square root and cube root)

romanna [79]

The cube root of the volume of a cube should give you the length of one side

3 0

3 years ago

If the function y = xa − 31 is a linear function, what is the value of a?

Olin [163]

Answer:

a.1

i hope you get it right