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oksian1 [2.3K]
3 years ago
11

If x=3 and y=1, then 3x2+2xy-5=?

Mathematics
1 answer:
miskamm [114]3 years ago
4 0

Answer:

19

Step-by-step explanation:

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Simplify each expression:<br> ( 5a^2b^3)(4ab^5)
DIA [1.3K]

Answer:

(22•5a3b4)

Step-by-step explanation:

STEP

1

:

Equation at the end of step 1

4ab • (5a2 • b3)

STEP

2

:

Multiplying exponential expressions :

2.1 a1 multiplied by a2 = a(1 + 2) = a3

Multiplying exponential expressions :

2.2 b1 multiplied by b3 = b(1 + 3) = b4

Final result :

(22•5a3b4)

5 0
2 years ago
Read 2 more answers
Divide. Yes rectangular model to record the partial quotient <br> 246/3=
ra1l [238]
82... because 24/3 is 8 and 6/3 is 2
Therefore you get 82
5 0
3 years ago
help me please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Sunny_sXe [5.5K]
So thi sis really simple since you have an equal sign so



(n/3)-(5n/6)=1/3
to subtract fractions, make the bottom number the same
n/3 times 2/2=2n/6
(2n/6)-(5n/6) or (2n-5n)/6 so
-3n/6=1/3
multiply both sides by 6
-3n=6/3=2
-3n=2
divide both sides by 3
-n=2/3
mmultiply boht by -1
n=-2/3
tada
n=-2/3
6 0
3 years ago
Read 2 more answers
The length of a dance floor to be replaced is 1 foot shorter than twice than width. You measured the width to be 12.25 feet. Wha
telo118 [61]
12.25x2=24.50 (width x2)
24.50-1=23.50 (length)


Area= LxW
        =23.50x12.25
        =287.88 feet

7 0
4 years ago
Read 2 more answers
How many times bigger is 3.45×10⁹ than 0.5×10⁴
son4ous [18]
3449995000 is what I got, I did 3.45x10^9 and then used that number and subtracted the answer from 0.5x10^4 to get the final answer, if that makes any sense.
4 0
2 years ago
Read 2 more answers
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