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Shalnov [3]
2 years ago
12

Pls answer number 11 :d i will mark brianliest

Mathematics
1 answer:
QveST [7]2 years ago
3 0

Answer:

D. (3; -4)

Step-by-step explanation:

.............

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Please help, I don’t understand it so explain don’t just put the answer if u can lols
ludmilkaskok [199]

Answer

27 days

Step-by-step explanation:

father= 45 days

oldest son + father=27 days

youngest + father= 36 days

45-27=18

45-36=9

18+9=27

so it would take 27 days for both sons to complete the house

18 days=oldest son

9 days =youngest son

7 0
3 years ago
Read 2 more answers
I am greater than 1/3 but less than 1. My numerator and denominator have a difference of 5 and a product of 24. Who am I?​
grandymaker [24]

Answer:

Step-by-step explanation:

5/8

5 0
3 years ago
Multiply.<br> (d+7)(d-7)<br> Simplify your answer.
romanna [79]

Answer:

\huge\boxed{(d+7)(d-7)=d^2-49}

Step-by-step explanation:

\bold{METHOD\ 1:}\\\\(d+7)(d-7)\qquad|\text{use}\ (a+b)(a-b)=a^2-b^2\\\\=d^2-7^2=d^2-49\\\\\bold{METHOD\ 2:}\\\\(d+7)(d-7)\qquad|\text{use FOIL}\ (a+b)(c+d)=ac+ad+bc+bd\\\\=(d)(d)+(d)(-7)+(7)(d)+(7)(-7)\\\\=d^2-7d+7d-49\qquad|\text{combine like terms}\\\\=d^2+(-7d+7d)-49\\\\=d^2-49

7 0
3 years ago
sailfish are the fastest fish in the world they can swim 68 miles hour estimate how far sailfish can swim in 3 hours
nordsb [41]
68×3=204iles in 3 hour 204/3
5 0
3 years ago
What is -7 plus 7 equal too
nikklg [1K]

Answer:

The answer is 0

Step-by-step explanation:

Have a nice day

8 0
3 years ago
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