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ad-work [718]
3 years ago
7

What is the simplest form of this expression w^2(-4w^2-2)+(-5w^2)(-2w^2-2)

Mathematics
2 answers:
VikaD [51]3 years ago
7 0
Answer:
6w⁴ + 8w²

Explanation:
Before we begin, remember the following:
xᵃ * xᵇ = x⁺ᵇ
+ve * -ve = -ve
-ve * -ve = +ve
+ve * +ve = +ve

To solve this problem, we will follow the following steps:
1- get rid of the brackets using the distributive property
2- combine like terms

This can be shown as follows:
w²(-4w² - 2) + (-5w²)(-2w² - 2)
w²(-4w²) + w²(-2) + (-5w²)(-2w²) + (-5w²)(-2)
-4w⁴ - 2w² + 10w⁴ + 10w²
w⁴(-4+10) + w²(-2+10)
6w⁴ + 8w²

Hope this helps :)

Snezhnost [94]3 years ago
4 0
<span>6<span>w4</span></span>+<span>8<span>w<span>2
</span></span></span>step-by-step.<span><span><span>w2</span><span>(<span><span>−<span>4<span>w2</span></span></span>−2</span>)</span></span>+<span><span>(<span>−<span>5<span>w2</span></span></span>)</span><span>(<span><span>−<span>2<span>w2</span></span></span>−2</span>)</span></span></span>Distribute:<span>=<span><span><span><span><span>(<span>w2</span>)</span><span>(<span>−<span>4<span>w2</span></span></span>)</span></span>+<span><span>(<span>w2</span>)</span><span>(<span>−2</span>)</span></span></span>+<span><span>(<span>−<span>5<span>w2</span></span></span>)</span><span>(<span>−<span>2<span>w2</span></span></span>)</span></span></span>+<span><span>(<span>−<span>5<span>w2</span></span></span>)</span><span>(<span>−2</span>)</span></span></span></span><span>=<span><span><span><span><span>−<span>4<span>w4</span></span></span>+</span>−<span>2<span>w2</span></span></span>+<span>10<span>w4</span></span></span>+<span>10<span>w2</span></span></span></span>Combine Like Terms:<span>=<span><span><span><span>−<span>4<span>w4</span></span></span>+<span>−<span>2<span>w2</span></span></span></span>+<span>10<span>w4</span></span></span>+<span>10<span>w2</span></span></span></span><span>=<span><span>(<span><span>−<span>4<span>w4</span></span></span>+<span>10<span>w4</span></span></span>)</span>+<span>(<span><span>−<span>2<span>w2</span></span></span>+<span>10<span>w2</span></span></span>)</span></span></span><span>=<span><span>6<span>w4</span></span>+<span>8<span>w<span>2 answer</span></span></span></span></span>
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Scientific Notation:<br> what’s (2.2 x 10 to the -4) - (3 x 10 to the 2)
Marrrta [24]

Answer:

2.23\times10^4

Step-by-step explanation:

In order to get the answer to this question you need to turn the scientific notations into standard form then subtract the two standard forms.

(2.2\times10^{-4})-(3\times10^2)

Turn the notations into standard form:

2.2\times10^{-4} = .00022

3\times10^2=300

.00022-300=22300

=22300

Turn into notation form:

22300 = 2.23\times10^{4}

Hope this helps.

8 0
3 years ago
11. Jim travelled at a speed of 18km/h for 2 hours. What was the distance covered?​
Igoryamba

Answer:

d = 36 km

Step-by-step explanation:

Speed of Jim, v = 18 km/h

Time, t = 2 hours

We need to find the distance covered. We know that the speed of an object is equal to the distance covered by it divided by total time taken.

v=\dfrac{d}{t}\\\\d=v\times t\\\\d=18\ km/h\times 2\ h\\\\=36\ km

So, he will cover 36 km.

7 0
3 years ago
Solve x for me please I need it!!!
Vlada [557]
The answer is 56 hope this helps
6 0
3 years ago
Read 2 more answers
What is the value of x?<br> 40°<br> (6x + 2)
Anvisha [2.4K]

Answer:

x = 8

Step-by-step explanation:

40 + 6x + 2 = 90   {Complementary angles}

Combine like terms

40+ 2 + 6x = 90

     42 +6x = 90         {Subtract 42 form both sides}

             6x = 90 - 42

             6x = 48       {divide both sides by 6}

        6x/6 = 48/6

             x = 8

6 0
4 years ago
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A gardener has a container with 6 1/5 ounces of liquid plant fertilizer on Sunday the gardener uses 2 1/2 ounces on a flower gar
sergey [27]
Amount of liquid plant fertilizer in the container that the gardener has = 6 1/5 pounds
                                                                                                               = 31/5 pounds
We already know that 1 pound = 16 ounce
Then
Amount of liquid plant fertilizer in the
container that the gardener has = (31/5) * 16 ounce
                                                    = 496/5 pounds                                                          
Amount of liquid plant fertilizer that the gardener uses on Sunday = 2 1/2 ounces
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Then
The amount of liquid plant fertilizer that are left= (496/5) - (5/2) ounces
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                                                                           = 967/10 ounces
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So the total amount of liquid plant fertilizer left is 96.7 ounces.
4 0
3 years ago
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