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2 years ago

PLEASEE HELP ANYONE

Mathematics

1 answer:

Grace [21]2 years ago

6 0

1- Leave the 1st case empty

2- Write on the 1st row each element of the trinomial in each case

3-Write on the 1st column in each case each of the element of the binomial

║ y² -3y 9
----------- ║-----------------------------------------------------
y ║    y³ -3y²    9y
----------- ║---------------------------------------------------
3 ║    3y²    -9y    27
------------║----------------------------------------------------
   TOTAL║(y³+3y²) +(-3y²-9y) + ( 9y+27)

If you add the Total you will get: (A) Y³+27

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Y=y = 2x -4 when x= 2

Dominik [7]

Y would equal 0. 2x2=4 and 4-4=0.

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2 years ago

Multiply.

prohojiy [21]

Answer:

D. 3x² + 19x - 14

Step-by-step explanation:

Use FOIL to find the answer.

First: x * 3x = 3x²

Outer: -2 * x = -2x

Inner: 3x * 7 = 21x

Last: 7 * -2 = -14

Form the equation:

3x² - 2x + 21x - 14

Combine like terms.

3x² + 19x - 14

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3 years ago

A light bulb in Maya's house uses 9.4 watts of electric power each minute it is on. If the light bulb used a total of 6.58 watts

tamaranim1 [39]

Answer:

0.7 minute

Step-by-step explanation:

Given that each (1) minute a light use 9.4 watts.

So If the light bulb used a total of 6.58 watts, the minutes was on it is:

$\frac{The total watts used}{The watts used each minute}$

= $\frac{6.58}{9.4}$

= 0.7 minute

So the the minutes was on it is 0.7

Hope it will find you well!

4 0

3 years ago

Help me to solve this

antoniya [11.8K]

The answer is 2cm

$8 \times 10 {}^{ - 3} \times 250 = 2000 \times 10 {}^{ - 3} \\ = 2$
or:
$8 \times {10}^{ - 3} \times 250 = 0.008 \times 250 \\ = 2$

good luck

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2 years ago

How many minutes in a year

tresset_1 [31]

There are 525600 minutes in a regular year

There are 527040 minutes in a leap year

I hope that's help !

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3 years ago