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masya89 [10]
3 years ago
9

HELP!!!!!! Fully simplify. ( 7✓-1)(3 ✓-4)

Mathematics
2 answers:
Sophie [7]3 years ago
8 0

Answer:

Step-by-step explanation:

=(7i)(3x2i)

=(7i)(6i)

=42i²

=-42

FromTheMoon [43]3 years ago
3 0
It’s -41 I sure hope so
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The points (2, -12) and (4, r) lie on a line with slope 4. Find the missing coordinate r.​
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3 years ago
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PLEASE HELP! Florida covers 54,153 square miles and has about 750,000 acres of citrus groves. What percent of Florida’s land mas
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4 years ago
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in a window display at a flower shop, there are 3 spots for 1 plant each. to fill these 3 spots, adam has 7 plants to select fro
Andrej [43]

Answer: 210

Step-by-step explanation:

We know that the number of combinations of n things taken r at a time is given by :-

C(n,r)=\dfrac{n!}{r!(n-r)!}

So, number of ways to select 3 plants out of 7 = C(7,3)=\dfrac{7!}{3!4!}=\dfrac{7\times6\times5\times4!}{6\times 4!}=7\times5=35

Also number of ways to arrange them in 3 positions = 3! = 6

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= 35 x 6

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Hence, required number of ways = 210

5 0
3 years ago
Belts cost $160 per carton, and shoes cost $465 per carton. If an order comes in for a total of 88 cartons for $19,265, what is
yanalaym [24]
Hello! The first thing you want to do is subtract 88 from 71 which gives you 17. If you multiply the belts times 71 that gives you 11,360. So then you have 17 left and all you do is multiply the shoe cost by 17 and that gives you 7,905. If you add 11,360+7,905 that gives you 19,265. So the correct answer would be 71!

I hope this helped!

I am, yours most sincerely,
SuperHelperThingy 
5 0
4 years ago
Enid has £300 in his saving account his bank offers him a fixed 5% simply interest rate per annum for a period of three years ho
xenn [34]

Answer:

The interest will be £45 after 3 years

and £60 after 4 years

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Principal p = £300, rate r = 5%, time t = 3 year

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SI = 3*5*3

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And after 4 years

Interest = (300*5*4)/100 = 3*5*4

Interest = £60

8 0
4 years ago
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