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Firdavs [7]
3 years ago
13

I need help with 19. 20.21 My answers were 19.4/96 20.4/42 21.2/72 Am I right

Mathematics
1 answer:
pashok25 [27]3 years ago
3 0
19.(3/4)/(1/32)=24
20.(3/4)/(1/14)=21/2
21.(1/2)/(1/72)=36
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Use the definition of the logarithmic function to find x. log4 0.25=x x=?
GREYUIT [131]
The answer is -1.

log_4(0.25)  =log_4( \frac{1}{4})= log_4(4^{-1} ) \\  \\ 
log(x^{a} ) = a*log(x) \\  \\ 
log_4(4^{-1} )= -1 *log_4(4) \\  \\ 
log_y(x) =  \frac{log(x)}{log(y)}  \\  \\ 
-1 *log_4(4) = -1* \frac{log(4)}{log(4)} = -1
5 0
3 years ago
Solve for x. Express the answer in simplest form. <br>2/1 = 8x - 2/ 9
oksano4ka [1.4K]
2=8x-2/9
add 2/9 to both sides
2 and 2/9=8x
2=18/9
2 and 2/9=18/9+2/9=20/9
20/9=8x
multiply both sides by 9
20=72x
divide boht isdes by 72
20/72=x=5/18
4 0
3 years ago
Multiplying a number by 4/5 then dividing by 2/5 is the same as multiplying what number?
prisoha [69]
Multiplying a number by 4/5 and then dividing by 2/5 is the same as multiplying by 2


5 0
3 years ago
Lucy's school is celebrating easter by having a race in which the winner will get a basket of chocolate eggs. lucy is the fiftie
Alja [10]
The question also states that Lucy has a winning probability of 1/50, which means that she has 1 chance of winning if the total runners were 50. Therefore, there are 49 runners who may be faster than her.

The fact that Lucy is the 50th slowest runner, means that starting from the slowest she is in 50th position, therefore there are 49 runners that are slower than her.

The total number of runners will be the sum of those faster than Lucy, those slower than Lucy and Lucy:
49 + 49 + 1 = 99

There are 99 runners in Lucy's school.
7 0
3 years ago
What is the value of |-6|—|6|-(-6)?<br><br> The solution is
Rzqust [24]

Answer:

6

Step-by-step explanation:

|-6| = 6

|6| = 6

- -6 = +6

so, we have

6 - 6 + 6 = 6

5 0
3 years ago
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