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vlabodo [156]
3 years ago
9

Emily is thinking of a number she calls it n then she finds 1 fourth of it and subtracts 3 level F iready

Mathematics
1 answer:
Grace [21]3 years ago
3 0

Answer:

n/4 - 3

Step-by-step explanation:

Let's "break" the statement in simpler parts:

First, we start with a number n.

Now, we need to find one fourth of that number, that is:

(1/4)*n = n/4

And finally, we need to subtract 3 from that, then we get:

n/4 - 3

So the statement:

"Emily is thinking of a number she calls it n then she finds 1 fourth of it and subtracts 3"

Can be written as:

n/4 - 3

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Simplify the expressions below. Write the final product in standard form and show your work to receive full credit.
frozen [14]
1.
1.2 x^4 ( 4 x² + 3 x + 1 ) = 4.8 x^6 + 3.6 x^5 + 1.2 x^4
2.
( 4 x - 3 ) ( 2 x² - 7 x + 1 ) = 8 x³ - 28 x² + 4 x - 6 x² + 21 x - 3 =
= 8 x³ - 34 x² + 25 x - 3
3.
( x² + 4 x - 3 ) ( 2 x² + x + 6 ) =
= 2 x^4 + x³ + 6 x² + 8 x³ + 4 x² + 24 x - 6 x² - 3 x - 18 =
= 2 x^4 + 9 x³ + 4 x² + 21 x - 18 
7 0
3 years ago
15 points! The data set shows the weights of pumpkins, in pounds, that are chosen for a photograph in a farming magazine. The re
vladimir2022 [97]

Answer:

Step-by-step explanation:

a). Mean of the given data set = \frac{32+28+18+40+22}{5}

                                                  = 28

b).   x                     x-\overline{x}               (x-\overline{x})^2

     32          32-28 = 4                    16

     28          28 - 28 = 0                  0

     18           18 - 28 = -10                100

     40          40 - 28 = 12                 144

     22          22 - 28 = -6                 36

                                                 \sum({x-\overline x})^2 =  296          

c). Standard deviation = \sqrt{\frac{\sum (x-\overline{x})^2}{n}}

                                     = \sqrt{\frac{296}{5} }

                                     = 7.69

d). Mean of the new set of weights = \frac{32+33+34+35+36}{5}

                                                          = 34

   Since mean of the data set is more close to each data, standard deviation will be less than the deviation given in part (c).

7 0
3 years ago
Please convert 7.65 x 10^3 to a number
Paraphin [41]

Answer:

= 7650

Step-by-step explanation:

7.65 * 10^3

Expand (10^3 = 1000):

7.65 * 1000

Multiply and simplify:

= 7650

7 0
4 years ago
Please help me. I don’t understand
laiz [17]

Answer:

Therefore the Equation and missing value is

\dfrac{3}{4}=\dfrac{1}{6}+x      .............Equation for the Diagram

x=\dfrac{7}{12}

Step-by-step explanation:

Given:

Let Label the Diagram such that

AB =\dfrac{1}{6}

BC =c

AC =\dfrac{3}{4}

To Find:

Equation =?

x = ?

Solution:

Here Total Length is given in Two Parts

one\ part =\dfrac{1}{6}

Second\ part =x

Total =\dfrac{3}{4}

For a Line A-B-C

AC =AB+BC       ..............Line Addition Property

Substituting the values we get

\dfrac{3}{4}=\dfrac{1}{6}+x ...Equation for the Diagram

x = \dfrac{3}{4}-\dfrac{1}{6}\\\\x=\dfrac{18-4}{4\times 6}\\\\x=\dfrac{14}{24}\\\\x=\dfrac{7}{12}

Therefore the Equation and missing value is

\dfrac{3}{4}=\dfrac{1}{6}+x ...Equation for the Diagram

x=\dfrac{7}{12}

3 0
3 years ago
Enter you answer and show all the steps that you use to solve this problem in the space provided.
Goshia [24]

Answer:

Y=38  

X=142      

Z=142

Step-by-step explanation:

Not sure about z but I know Y and X are right I hope sorry

5 0
3 years ago
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