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Rufina [12.5K]
3 years ago
7

brines kitchen has an area of 81 square feet. The kitchen is 9 times as many square feet as brinns pantry. If the pantry is 3 fe

et wide, what is the length of the pantry?
Mathematics
1 answer:
Viefleur [7K]3 years ago
3 0
Length would be 243, might want to read the other responses not sure if the answer is right 
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Perform the indicated operations. Write the answer in standard form, a+bi.<br> (5 + 6i)(5 - 6i)
lubasha [3.4K]

\boxed{\underline{\bf \: ANSWER}}

\sf \: ( 5 + 6 i ) ( 5 - 6 i )

Multiply complex numbers 5+6i and 5-6i in the same way as you multiply binomials.

\dashrightarrow \sf 5\times 5+5\times \left(-6i\right)+6i\times 5+6\left(-6\right)i^{2}

By definition, i² is -1.

\dashrightarrow \sf 5\times 5+5\times \left(-6i\right)+6i\times 5+6\left(-6\right)\left(-1\right)

Do the multiplications.

\dashrightarrow \sf \: 25-30i+30i+36

Now cancel -30i & +30i

\dashrightarrow \sf \: 25 \:  \bcancel{- 30i}  \:  +  \: \bcancel{30i}+36

Now the equation becomes

\dashrightarrow \sf \: 25 \:  + 36 \\ \dashrightarrow  \boxed{\bf \: 61}

________

Hope it helps.

ŕάίήвόώşάĻţ2²2²

5 0
3 years ago
Read 2 more answers
4 Gears A and B turn together. Gear A turns 20 times when
aleksandr82 [10.1K]

Answer:

  • 90 turns

Step-by-step explanation:

<u>Ratio of turns</u>

  • A/B = 20/30 = 2/3

<u>If A = 60 then the ratio is</u>

  • 60/B = 2/3 ⇒ B = 60*3/2 = 90
5 0
2 years ago
Can someone help me?
3241004551 [841]

-8/12

add together but keep the negative

4 0
3 years ago
Help ASAP I’ll mark you as brainlister
Arturiano [62]

Answer:

32

Step-by-step explanation:

do 4 x 3 = 12 then do 12 + 20 =32.

6 0
3 years ago
-2(-9m-2)-1=27+10m<br><br><br> it’s a multi-step equation!
Basile [38]

Answer:

m=3

Step-by-step explanation:

expand and move the terms around

18m+4-1=27+10m

8m=24

m=3

7 0
3 years ago
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