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meriva
2 years ago
10

What is the answer to this please help

Mathematics
2 answers:
mash [69]2 years ago
7 0

Answer:

2\sqrt{42} + 7\sqrt{2} -6- \sqrt{21}

Step-by-step explanation:

(\sqrt{14} - \sqrt{3})(\sqrt{12} + \sqrt{7})

root 12 can be changed to 2 root 3

then multiply

then simply

and you should get ur answer

Elis [28]2 years ago
4 0

Answer:

use calculater please it will not take long

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One cell phone plan charges $20 per month plus $.15 per minute used. A second cell phone plan charges $35 per month plus $.10 pe
SOVA2 [1]

20+0.15x = 35+0.10x

0.15x=15+0.10x

0.05x=15

x= 15/0.05

x= 300minutes


check:

300*.015 = 45+20=65

300*0.10 = 30 + 35 = 65

they equal

 so number of minutes would be 300

7 0
3 years ago
Which of the following demonstrates how the 20 is calculated using the combination pattern​
UNO [17]

The combination expression that demonstrates how the 20 is calculated using the combination pattern​ is 6C3

<h3>Permutation and Combination</h3>

While combination has to do with selection, permutation has to do with arrangement.

According to the combination rule

nCr = n!/(n-r)!r!

The expression that gives the result of 20 is expressed below;

6C3 = 6!/(6-3)!3!

6C3 = 6!/3!3!

6C3 = 6!/6*6
6C3 = 720/36
6C3 =20

Hence the combination expression that demonstrates how the 20 is calculated using the combination pattern​ is 6C3

Learn more on combination here: brainly.com/question/4658834

#SPJ1

5 0
2 years ago
Give the position of c on this number line write a fraction for your number​
alex41 [277]

Answer:

2/6 or 1/3

Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
At midnight, the temperature was -8oF. At noon, the temperature was 23oF. Which expression represents the increase in temperatur
irinina [24]

Answer:

23^oF-(-8^oF)

Step-by-step explanation:

We have been given that at midnight, the temperature was -8^oF. At noon, the temperature was 23^oF.

Since our temperature has increased to 23 degree Fahrenheit from -8 degree Fahrenheit, we can represent this increase in temperature as:

\text{The increase in temperature}=23^oF-(-8^oF)

Therefore, the expression 23^oF-(-8^oF) represents the increase in temperature.  

6 0
3 years ago
Read 2 more answers
The discriminant of the function is
inessss [21]
Discriminant of a Quadratic

The number D = b2 – 4ac determined from the coefficients of the equation ax2 + bx + c = 0. The discriminant reveals what type of roots the equation has.

Note: b2 – 4ac comes from the quadratic formula.

 



6 0
3 years ago
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