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faltersainse [42]
3 years ago
11

Solve each one variable equation.

Mathematics
1 answer:
uranmaximum [27]3 years ago
8 0

Answer:

See below in bold.

Step-by-step explanation:

a.  |x| = 6

x = 6, -6.

b.  |x − 5| = 4

x - 5 = 4

x = 9.

x - 5 = -4

x = 1.

c. 2|x + 3| = −10

No solution because |x + 3| is an absolute value so is always positive.

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Determine which relation is a function.
erastova [34]

Answer:

the correct answer is option ( C )

8 0
3 years ago
After standardizing a NaOH solution, you use it to titrate an HCl solution known to have a concentration of 0.205 M. You perform
Gnoma [55]

Answer:

The right answer is:

(a) 0.205

(b) 0.005425

Step-by-step explanation:

The given data is:

0.213, 0.204, 0.208, 0.200, and 0.198

(a)

The mean will be:

= \frac{Sum \ of \ all \ data}{No. \ of \ data}

= \frac{0.213+ 0.204+ 0.208+ 0.200+0.198}{5}

= \frac{1.023}{5}

= 0.2046

or,

= 0.205

(b)

The standard deviation will be:

\sigma^2=\Sigma\frac{(x_i-\mu)^2}{N}

    =\frac{(0.213-0.2046)^2+...+(0.198-0.2046)^2}{5}

    =\frac{0.0001472}{5}

    =2.994\times 10^{-5}

or,

    =0.005425

7 0
3 years ago
If x = -3 and y = 4 find the value of : x(3x + 4y)
Soloha48 [4]

Answer:

-21

Step-by-step explanation:

(−3)((3)(−3)+(4)(4))

=(−3)((3)(−3))+(−3)((4)(4))

=27−48

=−21

3 0
3 years ago
Thirty is 12% of what number?<br><br> 3.6<br><br> 360<br><br> 2.5<br><br> 250
Irina-Kira [14]
Thirty of 12% is 3.6
3 0
3 years ago
Read 2 more answers
Can someone help me with math I need help I will attempt to give y’all help too!
Tema [17]

Answer:

C.22

Step-by-step explanation:

The shapes are the same just different sizes. So since 12 went to 16 it went up by 4. You do the same with 18 and you get 22. So x=22

6 0
3 years ago
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