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SashulF [63]
3 years ago
12

})=2" alt="6\sqrt{3}+2(1-\sqrt{27})=2" align="absmiddle" class="latex-formula">
Need step by step
Mathematics
2 answers:
pentagon [3]3 years ago
6 0

6\sqrt{3}+2-2\sqrt{27} = 2

6\sqrt{3}+2-2\sqrt{3\cdot 9} = 2

6\sqrt{3}+2-2\cdot\sqrt{3}\cdot \sqrt{9}=2

6\sqrt{3}+2-2\cdot \sqrt{3}\cdot 3=2

6\sqrt{3}+2-6\sqrt{3}=2

2=2

skelet666 [1.2K]3 years ago
3 0

Answer:

This is true.

Step-by-step explanation:

Step 1: see that √27 is the same as √3*3*3 and thus 3√3

Step 2: remove parenthesis so that 2(1-3√3) becomes 2 - 6√3

Step 3: observe that the equation now becomes 6√3 + 2 - 6√3 = 2

if you simplify any further, you are left with 0=0, which is true.

Comment if there is any step that requires more details...

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Find the volume of each cone.
SVEN [57.7K]

Answer:

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2. V= {π(7^2)*11 in^3}/3=564.44 in^3

3. V= {π(15^2)*20 in^3}/3=4,712.39 yd^3

Step-by-step explanation:

V=π(r^2)h

5 0
3 years ago
According to recent reports, Apple Inc. holds 27.6% of the Tablet Computer market. Suppose a consumer research company believes
KonstantinChe [14]

Answer:

We don't have sufficient evidence to support the claim

Step-by-step explanation:

Null hypothesis:

H_0: p = 0.276

Alternate hypothesis:

H_1: p < 0.276

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0.3064 probability of finding a sample proportion lower than the one found.

The p-value is higher than the significance level of 0.05, which means that there is no sufficient evidence to support the claim.

5 0
3 years ago
What is the solution to -2(8x – 4) &lt; 2x + 5?<br> o xs<br> oxca<br> O x&gt;6<br> O x&lt;6
TiliK225 [7]

-2(8x-4)

3 0
3 years ago
An expression equivalent to 3n+2(1-4n)
Taya2010 [7]
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6 0
3 years ago
Suppose each runner ran at the rate given in the table above for 3.1 miles. How much time will elapse between the first place fi
Scilla [17]
You didn't include the table but I found this table for the same statement, so I will answer you based on the next table:

Runner         distance           time

Arabella        7,299 feet        561 seconds
Bettina          3,425 yards     13 minutes, 12 seconds
Chandra       8,214 feet        0,195 hours
Divya            1,62 miles        732 seconds

To answer the question you must find the rate for each runner and then calculate the time to run 3.1 miles at each rate.

First you need to convert the data to obtain the rate in miles per second.

These are the main conversion identities:

1 mile = 5280 feet

1 mile = 1760 yards

1 hour = 3600 seconds

1 hour = 60 minutes

1 minute = 60 seconds

Arabella:

rate: 7,229 feet / 561 seconds * (1 mile / 5280 feet)  =

= 0.00244 mile/second

Time to run 3.1 miles: V = d / t => t = d / V = 3.1 miles / 0.00244 mile/second = 1270 seconds

Bettina:

13 minutes + 12 seconds = 13*60 seconds +12 seconds = 792 seconds

rate = 3425 yards / 792 seconds * 1 mile / 1760 yards = 0.00246 mile/seconds

Time to run 3.1 miles = 3.1 miles / 0.00246 mile/second = 1260 seconds

Chandra:

rate = 8214 feet / 0.195 hours * 1 mile / 5280 feet * 1hour / 3600 seconds =

= 0.00222 seconds

Time = 3.1 mile / 0.00222 seconds = 0.389 hour = 1396 seconds

Divya:

rate = 1.62 miles / 732 seconds = 0.00221 seconds

Time = 3.1 mile / 0.00221 seconds = 1403 seconds

Now you can find the difference between fhe last and the first 1403 seconds - 1260 seconds = 143 seconds

That is equivalent to 2.38 seconds.
6 0
3 years ago
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