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coldgirl [10]
3 years ago
7

1. Simplify the expression: 4w3z4 + 3w3 + 4z4 + 2w3z4 + z

Mathematics
1 answer:
Mrac [35]3 years ago
8 0

Answer:72wz+17z+9w

Step-by-step explanation:

You multiply them together  them add to simplify them.

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Help me pls. not links pls
adelina 88 [10]
Answer:
y = 1/2x

step-by-step explanation:
first find the y-intercept or b
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it is 5/10 or 1/2x
putting those in the equation it would be
y = 1/2x
because the y-intercept is 0 you wouldn’t add it
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3 years ago
Dominic, Ralf and Peter have just eaten a HUGE Christmas meal. Dominic now weighs half as much as Ralf, and Peter weighs three t
Strike441 [17]
Dominic weighs 120.

I started laughing as soon as I saw this question...

It honestly made my day:)


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3 years ago
Find the volume of a cylinder with a diameter of 13 inches and a height of 17 inches. Round to the nearest tenth
Rainbow [258]
2256.5 hope that helps
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3 years ago
Please help!!!! ASAP HURRY
velikii [3]
Your answer is the matrix with the top row of -8  20   0  and bottom row of 
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5 0
3 years ago
Joe can cut and split a cord of firewood in 3 fewer hours than Dwight can. When they work​ together, it takes them 2 hours. How
aalyn [17]

Answer:

Dwight will take 6 hours to finish the job alone and Joe will take 3 hours to finish the job alone.

Step-by-step explanation:

Let us assume the time taken by Dwight to split a cord of firewood  = K hrs

So, the per hour rate of Dwight  = (\frac{1}{K})

As, Joe uses 3 LESS hours then Dwight.

So, the time taken by Joe to split a cord of firewood  = (K- 3) hrs

So, the per hour rate of Joe  = (\frac{1}{K-3})

Now, when both of them wok together, it takes them 2 hours.

So, the per hour rate of BOTH of them  = (\frac{1}{2})

⇒ Per hour rate of ( Dwight  + Joe)  =(\frac{1}{2} )

\implies (\frac{1}{K}) +  (\frac{1}{K-3}) = (\frac{1}{2})

Now, solving for the value of K , we get:

(\frac{1}{K}) +  (\frac{1}{K-3}) = (\frac{1}{2})\\\implies  \frac{(K-3) + K}{K (K-3)}  = (\frac{1}{2})\\\implies 2(2K -3) = K^2 - 3K\\\implies k^2 - 3K -4K +6 = 0\\\implies K^2 - 7K  + 6=  0\\\implies K^2 - 6K - K  + 6=  0\\\implies K(K-6) -1(K - 6)=  0\\\implies (K-6)(K-1) = 0

Implies either K = 6 Or K = 1

But if K = 1, (K-3)  = 1- 3  = -2 hours would be A CONTRADICTION.

⇒ K  = 6 hours

Hence, Dwight will take 6 hours to finish the job alone and Joe will take (k-3) = (6-3) = 3 hours to finish the job alone.

8 0
3 years ago
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