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avanturin [10]
3 years ago
10

What is DE? AC= 12.6

Mathematics
2 answers:
Lynna [10]3 years ago
8 0
I don’t have that In person so I don’t know how I could measure it, but I do know that you could use a ruler for this! Or use your Device to look up the act measure meant of I inch! Then maybe you will find it! If less than an inch look up the exact measurements of half an inch
Ganezh [65]3 years ago
6 0

Answer: 6.3 is the answer.

Step-by-step explanation:

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A store sells televisions for $360 and DVD burners for $270. The entire stock is worth $52,920 and there are a total of 164 tele
bogdanovich [222]

Answer:  96 Televisions, 68 DVD burners

<u>Step-by-step explanation:</u>

Let T represent the quantity of televisions

Let D represent the quantity of DVD burners

<u>Given:</u>

value of television (T) = 360

value of DVD burners (D) = 270

Total value = 52,920

<u>Equations:</u>

Value: 360T + 270D = 52,920

Quantity:   T + D = 164

We can solve the system of equations using the Elimination Method:

-1(360T + 270D = 52,920) →  -360T - 270D = -52,920

  360(T + D = 164) →                <u>360T + 360D</u> = <u>59,040 </u>

                                                                90D = 6,120

                                                              <u> ÷90   </u>  <u> ÷90    </u>

                                                                     D = 68

Input the value of D into one of the equations to solve for T

T + D = 164

T + 68 = 164

      T   = 96

6 0
3 years ago
An E. coli bacterium has a diameter of about 5×10^-7 meter. Write this measurement as a decimal in standard notation. Explain .
Archy [21]
5<span>×</span>10^-7 = 0.0000005 
When 10 is to a negative power, you move the decimal to the left because the number is less than positive 1. Here 10 is to the power of -7, so you move the decimal (which is after/behind 5) to the left 7 times. 
7 0
3 years ago
Alex is a member of the school track and field team. His times for running various distances are shown. Create a scatter plot fo
frozen [14]

Answer:

(1) Please find attached the graph of the data

(2) 160.396 m

(3) The correlation that exist is a straight line correlation

Step-by-step explanation:

The given data are;

Distance,         Time

(m),                    (s)  

50,                    6.1

100,                   12

150,                   18.3

200,                  25.2

250,                   31.7

(2)

Based on the linear regression formula, we have;

b = \dfrac{N\sum XY - \left (\sum X  \right )\left (\sum Y  \right )}{N\sum X^{2} - \left (\sum X  \right )^{2}}

b = \dfrac{5 \times 17215 - 93.3 \times 750}{5 \times 2156.03 -8704.89} = 7.758

a = \dfrac{\sum Y - b\sum X}{N}

a = \dfrac{750 - 7.7581 \times 93.3}{5}= 5.234

The line is

y = 7.7581×x+5.234

When t = 20 s, we have

y = 7.7581*20+5.234 = 160.396 m

(3) The correlation that exist is a straight line correlation

3 0
3 years ago
What is 2/3 - 8/15 ?
suter [353]

Answer:

2/15

Step-by-step explanation:

2/3 -  8/15

Get a common denominator

2/3 *5/5 = 10/15

10/15 - 8/15

2/15

8 0
3 years ago
Please help asap 30 pts
earnstyle [38]
The answer is the fourth box so 3a-11>7
8 0
4 years ago
Read 2 more answers
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