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2 years ago

EverWrite 12 pens for $6.99 or Inkerz $3.00 for a 5-pack

Mathematics

1 answer:

mylen [45]2 years ago

6 0

Answer:

1)0.5825

6.99/12=0.5825

2)0.6

3.00/5=0.6

Step-by-step explanation:

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What is the product of 5−2i and 3−4i? Enter your answer, in standard form, in the box

Lelechka [254]

Answer:

$\boxed{7-26i}$

Step-by-step explanation:

The binomials are multiplied in the usual way, using FOIL or the distributive property:

(5 -2i)(3 -4i) = 15 -20i -6i +8i²

Since i² = -1, this becomes ...

= 15 -20i -6i -8 = 7 -26i

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3 years ago

What is the first quartile of this data set?

Mamont248 [21]

The median is 19 and the lower quartile is the middle number of the 5 numbers before 19
So its 13

B

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2 years ago

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What is the sum of r + s when r = –17.6 and s = 12.2? A. –29.8 B. –5.4 C. 5.4 D. 29.8

tankabanditka [31]

C. -5.4 -17.6+12.2= -5.4 because -17.6 goes first in the calculator but also its a negative

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3 years ago

Number 6 part a & b Number 7 Please & thank you

miv72 [106K]

Answer:

6- Part A: $750a+1200r=1000000$

Part B: $1065a+876r=1000000$

Solution of the system: $a\approx521.739\;\;\;\;b\approx507.246$

Step-by-step explanation:

Part A:

In words, the equation is formed like this:

Total kg of Arabica + Total kg of Robusta = Total kg of coffee

Now, the total of each yield is calculated by the product of kg/hectare and number of hectares. Thus, the equation is:

$750a+1200r=1000000$

Part B:

In words:

Arabica's worth + Robusta's worth = plantation worth

Each yield's worth is given by the product of the price per kg and the corresponding production. So, the equation is:

$1.42(750a)+0.73(1200r)=1000000\\1065a+876r=1000000$

3 0

3 years ago

I'm so confused and need help

siniylev [52]

Answer:

SAS, SSS, AAA

Step-by-step explanation:

Because Im bored X D

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3 years ago