-8x^2-3x+5+2x^2+7x-5

1 answer:

8 0

-6x^2+4x

my reasoning:
eliminate the opposites (5 & -5)
collect the like terms (-8x^2 & + 2x^2)
collect the like terms again (-3x &+7x)

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Plz help I need help plz

dem82 [27]

Answer:

33/4 or 8 1/4

Step-by-step explanation:

-3 2/3 • (-2 1/4)

Step 1. Convert each into improper fractions
(Reply for details)

-11/3 • (-9/4)

Step 2. Multiply
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99/12

Step 3. Simplify
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33/4 or 8 1/4

4 0

3 years ago

PLEASE HELP!!

pogonyaev

Answer:

Work shown below!

Step-by-step explanation:

$\sqrt{-18}=\sqrt{18i^{2} } =\sqrt{2*9i^{2} }=3i\sqrt{2}$

$2\sqrt{-16} =2\sqrt{16i^{2} } =4i*2=8i$

4 0

3 years ago

1kg= 2.2 pounds Change 44 pounds in kg

Lyrx [107]

Answer:
44 pounds = 20 kg

Explanation:
We are given that:
1 kg = 2.2 pounds

To convert 44 pounds into kg, all we have to do is cross multiplication as follows:
1 kg .................> 2.2 pounds
?? kg .................> 44 pounds

Now, we solve as follows:
4 kg = $\frac{44*1}{2.2} = 20$ pounds

Hope this helps :)

4 0

3 years ago

LAST ONE SORRY I REALLY NEED HELP ON THIS ONEEEE

BartSMP [9]

Answer:

First, find the bats left 100 times for left-handed pitchers and right-handed pitchers:

0.285 x 100 = 28.5

0.175 x 100 = 17.5

Next, subtract these numbers to find how many more hits he will get:

28.5 - 17.5 = 11 and that is your answer

7 0

3 years ago

Mina tosses two number cubes labeled 1 to 6. What is the probability that the sum is equal to five?

coldgirl [10]

(1,4)

(4,1)

(2,3)

(3,2)

so there are 4 different combinations that equal 5

6 x 6 = 36 total possible outcomes of the dice

so they have a 4/36 reduces to 1/9 probability of equaling 5

7 0

3 years ago