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Tcecarenko [31]
3 years ago
12

Please help me guys its math

Mathematics
1 answer:
ElenaW [278]3 years ago
4 0
58 because she is increasing 8 minutes a day
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Evaluate the expression when a=2 and b=4<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bb%20%7B%7D%5E%7B2%7D%20-%202a%20%7D%2
12345 [234]

Answer:

6

Step-by-step explanation:

Substitute a = 2 , b = 4 into the expression

\frac{b^2-2a}{a}

= \frac{4^2-2(2)}{2}

= \frac{16-4}{2}

= \frac{12}{2}

= 6

3 0
3 years ago
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Given the triangle below, answer the following:
OLEGan [10]

Answer:

Step-by-step explanation:

question no . 5

ratio of angle L

take angle as reference angle

using cos rule

cos L = base / hypotenuse

= 4/5

ratio of angle N

take angle N as reference angle

using sin rule

sin N = opposite / hypotenuse

= 4/5

for measure of angle L

cos L = 4/5

cos L = 0.8

L = cos^{-1}(0.8)

L = 36.9

for meanure of angle N

sin N = 4/5

sin N = 0.8

N = sin^{-1}(0.8)

N = 53.1

7 0
3 years ago
Read 2 more answers
What is the greatest common factor of 48, 112, and 80
pickupchik [31]

9514 1404 393

Answer:

  16

Step-by-step explanation:

48 = 16·3

112 = 16·7

80 = 16·5

3, 5, 7 have no common factors. The GCF of {48, 112, 80} is 16.

_____

It can be helpful to recognize 48 = 16·3 and 80 = 16·5. A simple check shows 112 = 16·7, so 16 is the GCF.

__

You can find GCF(48,112) using Euclid's algorithm:

  112 mod 48 = 16

  48 mod 16 = 0   ⇒   GCF(48, 112) = 16

and the GCF(16, 80) is ...

  80 mod 16 = 0   ⇒   GCF(16, 80) = 16

So, GCF(48, 80, 112) is 16.

4 0
3 years ago
In how many different ways can a committee of 4 students be chosen from 6 students
AnnyKZ [126]
If order mattered, then there would be 6*5*4*3 = 30*12 = 360 different ways to form the committee. However, no single member outranks the other. Each member has equal ranking. So order does not matter. 

Since order does not matter, we must consider all of the ways to arrange a single group of 4 people. That is 4! = 4*3*2*1 = 24 ways. We overcount by a factor of 24 when order doesn't matter which is why we divide the previous result (360) by 24 to get 360/24 = 15

Answer: 15

Note: you can use the combination formula n C r = (n!)/(r!*(n-r)!) with n = 6 and r = 4 to get the same answer
3 0
3 years ago
The problem 72➗12 will have a quotient greater than the problem 7.2➗12.true or false HELLLLLP QUICK
LiRa [457]
TRUE

explanation:
72/12 = 6. 7.2/12 = .6 . So, 6 is greater than .6 .
7 0
3 years ago
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