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kakasveta [241]
3 years ago
5

Paulina has completed 24 of the 42 math problems she was assigned for homework. She plans to finish her homework by completing 9

math problems each hour h. Write an equation to find the number of hours it will take Paulina to complete her math homework assignment
Mathematics
1 answer:
ICE Princess25 [194]3 years ago
7 0

Answer:

24+9h=42

Subtract 24 from both sides:

9h=18

Divide both sides by 9:

h=2

It will be completed after 2 hours.

Step-by-step explanation:

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Please see attachment for the question.
Sophie [7]

Step-by-step explanation:

\frac{10 {x}^{3}  -  12 {x}^{2}   + 6x - 7 }{ - 14 {x}^{2} - 1 }

-14x²-1≠0

x²≠ -1/14

Option C

5 0
3 years ago
A rectangle has verticles (6,4), (2,4) (6,-2), and (2,-2. What are the coordinates of the verticles of the image after dilation
Archy [21]

Answer:

the coordinates are (2,-7)

Step-by-step explanation:

its this bacause if you add all the vertices then subtract them you will get this

5 0
3 years ago
Plz help!!!!!!!!! Due soon!
oksian1 [2.3K]

Answer:

520 Students

Step-by-step explanation:

If you multipy 650 by .8 you will get 520 and that is the percentage of students that is going.

8 0
2 years ago
Read 2 more answers
What is the sum of the finite arithmetic series ? 7.6+6.3+5+3.7+2.4+1.1+(-0.2)+(-1.5)
BartSMP [9]

\text{Consider the sum of the finite arithmatic series}\\
\\
7.6+6.3+5+3.7+2.4+1.1+(-0.2)+(-1.5)\\
\\
\text{We know that the sum of the finite arithmatic series }\\
\\
a_1,a_2, a_3, ..., a_n \text{ is given by the formula}\\
\\
S_n=\frac{n}{2}\left ( a_1+a_n \right )\\
\\
\text{here in the given series, we can see that }a_1=7.6, \ a_n=-1.5 \text{ and}\\
\text{the number of terms is, }n=8. \text{ so using above formula, we get}

S_8=\frac{8}{2}\left ( 7.6+(-1.5) \right )\\
\\
=4\left ( 7.6-1.5 \right )\\
\\
=4\left ( 6.1 \right )\\
\\
=24.4

Hence the sum of the finite Arithmetic series is: 24.4

5 0
3 years ago
Read 2 more answers
The sample of eight companies in the aerospace industry, referred to in Exercise 36, was surveyed as to their return on investme
Vera_Pavlovna [14]

Answer:

Sample Variance = 6.008

Sample standard deviation = 2.451

Step-by-step explanation:

We are given the following in the question:

10.6, 12.6, 14.8, 18.2, 12.0, 14.8, 12.2, 15.6

Formula:

\text{Variance} = \displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}  

where x_i are data points, \bar{x} is the mean and n is the number of observations.  

Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}

Mean =\displaystyle\frac{110.8}{8} = 13.85

Sum of squares of differences = 42.06

s^2 = \dfrac{42.06}{7} = 6.008

Standard Deviation =

s = \sqrt{s^2} = \sqrt{6.008} = 2.451

6 0
2 years ago
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