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CaHeK987 [17]
3 years ago
8

v 4( {3}^{2} - 1)" alt="7 - 8 \div 4( {3}^{2} - 1)" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
4 0

Use PEMDAS

P Parentheses first

E Exponents (ie Powers and Square Roots, etc.)

MD Multiplication and Division (left-to-right)

AS Addition and Subtraction (left-to-right)

7-8\div4\cdot(3^2-1)=7-2\cdot(9-1)=7-2\cdot8=7-16=-9

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If a current of 12 amps produces 480 volts across a resistor then how many volts does a 15 amp produce?​
LekaFEV [45]

Answer:

600 volts

Step-by-step explanation:

Given =

A = 12 ampere

V = 480 volts

A2 = 15 ampere

Solution =

R = V/I

= 480 / 12

= 40 ohms

R = V / I

V = R x I

= 40 x 15

= 600 volts

7 0
3 years ago
2. Determine the volume of the figure. Round your answer to the nearest tenth of a cubic foot. three feet, ten feet, four feet,
guajiro [1.7K]
Volume=Length x Width x Height
It doesn't matter which one you multiply first; you will get the same answer.
The equation is 3 x 10 x 4
3 x 10 = 30
30 x 4 = 120
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3 0
3 years ago
HURRY PLSSS
vodka [1.7K]

Answer:

C)

Step-by-step explanation:

the answer is c because you multiply 4 and 2 and get 8 and multiply 8 by 8 and get 64 then you use 4 again and multiply 64 by 4 so you get 256 and round that 254

6 0
3 years ago
Read 2 more answers
Hey who ever can help me, I give 25 points
Nadusha1986 [10]

4x+2y=18

-2(2x+3y=15)=-4x-6y=-30

4x+2y=18

-4x-6y=-30

-4y=-12

y=3

2x+3(3)=15

2x+9=15

2x=6

x=3

(3,3)


5 0
3 years ago
Pleeeeeasssseeee heeeelppp!! File is attached!!
rjkz [21]
3/10 -c
2/10-b
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7/10-g
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3 years ago
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