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3 years ago

I need help ASAP!!!!

Mathematics

1 answer:

yawa3891 [41]3 years ago

4 0

You can easily do this yourself. It takes more effort to create the question. Just multiply 22.854 by 5 then divide by 4 = 28.5675.

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Is it ever possible that |x| = -x and can you explain please

frez [133]

Answer:

Step-by-step explanation:

The reason is that the absolute value of x is always not going to equal a negative.

|-1| = 1 (correct)

|-1| = -1 (incorrect)

3 0

4 years ago

Read 2 more answers

Determine whether the equation below has a one solutions, no solutions, or an infinite number of solutions. Afterwards, determin

Serga [27]

Answer:

One Solution

$x = 8$

Step-by-step explanation:

Given

$-10x = -80$

Required

Determine the number of solution and the value of x

The equation is a linear equation and they have just one solution

Solving further [Divide both sides by -10]

$\frac{-10x}{-10} = \frac{-80}{-10}$

$x = \frac{-80}{-10}$

$x = 8$

Hence;

<em>x has only one value</em>

6 0

4 years ago

PLEASE help me solve the following equations. Only part b-e<br> will mark as brainliest

levacccp [35]

Step-by-step explanation:

16/7 is your solution....

hope it helps

...

7 0

3 years ago

He sum of three numbers is 19 . the sum of twice the first number, 4 times the second number, and 5 times the third number is

Alja [10]

Let
x----------> the first number
y---------> the second number
z--------> the third number

we know that
x+y+z=19-----> z=19-x-y------> equation 1
2x+4y+5z=72-----> equation 2
4x-y=12------> equation 3

substitute equation 1 in 2
2x+4y+5*[19-x-y]=72----> 2x+4y+95-5x-5y=72----> -3x-y=-23
3x+y=23------> equation 4

add equation 3 and equation 4
4x-y=12
3x+y=23
--------------
7x+0y=35--------> x=35/7----------> x=5
4x-y=12------> y=4x-12----> y=4*5-12----> y=8
z=19-x-y------> z=19-5-8----> z=6

the answer is
the numbers are
5
8
6

6 0

4 years ago

Sheryl got these scores on her spelling tests.

erica [24]

Answer:

5.6

Step-by-step explanation:

Sheryl got the following scores on her spelling tests.

95, 89, 99, 85, 82

Mean = sum of all observations/ Number of observations

Sum of all observations $=95+89+99+85+82=450$

Number of observations = 5

So,

Mean $=\frac{450}{5}=90$

Let M denotes the mean

Mean absolute deviation $=\frac{\sum_{i=1}^{n}\left | x_i-M \right |}{n}$

Put $n=5$

So,

Mean absolute deviation $=\frac{\sum_{i=1}^{5}\left | x_i-M \right |}{5}=\frac{|95-90|+|89-90|+|99-90|+|85-90|+|82-90|}{5}=\frac{5+1+9+5+8}{5} =\frac{28}{5}=5.6$

3 0

3 years ago