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mel-nik [20]
3 years ago
14

Choose the correct algebraic expression to represent: 7 less than n

Mathematics
1 answer:
mariarad [96]3 years ago
5 0

Answer

n-7

Step-by-step explanation:

it represents 7 less than n because you can subtract less than n because 7 is smaller

You might be interested in
What is the value of x if x squared = 37/81
HACTEHA [7]

Answer:

x = ±√37/9

Step-by-step explanation:

x² = 37/81

√(x²) = √(37/81)

x = ± √(37)/√(81)

x = ± √37/9

4 0
3 years ago
Tough one!
frosja888 [35]
Imx->0 (asin2x + b log(cosx))/x4 = 1/2 [0/0 form] ,applying L'Hospital rule ,we get

= > limx->0 (2a*sinx*cosx - (b /cosx)*sinx)/ 4x3 = 1/2 => limx->0 (a*sin2x - b*tanx)/ 4x3 = 1/2 [0/0 form],

applying L'Hospital rule again ,we get,

 = > limx->0 (2a*cos2x - b*sec2x) / 12x2 = 1/2

For above limit to exist,Numerator must be zero so that we get [0/0 form] & we can further proceed.

Hence 2a - b =0 => 2a = b ------(A)

limx->0 (b*cos2x - b*sec2x) / 12x2 = 1/2 [0/0 form], applying L'Hospital rule again ,we get,

= > limx->0 b*(-2sin2x - 2secx*secx.tanx) / 24x = 1/2 => limx->0 2b*[-sin2x - (1+tan2x)tanx] / 24x = 1/2

[0/0 form], applying L'Hospital rule again ,we get,

limx->0 2b*[-2cos2x - (sec2x+3tan2x*sec2x)] / 24 = 1/2 = > 2b[-2 -1] / 24 = 1/2 => -6b/24 = 1/2 => b = -2

from (A), we have , 2a = b => 2a = -2 => a = -1

Hence a =-1 & b = -2
7 0
3 years ago
I need some help, please. : ) <br><br> 25 points. :D
morpeh [17]
X=4 and y= -3 Hope it helps

5 0
2 years ago
Can 25 over 12 be simply ed,if so by what
umka2103 [35]

Question:

Can 25/12 be simplified?

Answer:

No, it cannot be simplified because 25 is an odd number and 12 is an even number.


Hope this helped!!

8 0
3 years ago
Read 2 more answers
HELP ASAP
tester [92]
Let s = the smaller one of the two.
Since they are consecutive, the second one is (s + 1)

Since they are natural numbers, they cannot be negative.

We know that s(s + 1) = s + (s + 1) + 155

So:
s(s + 1) = 2s + 156
s^2 + s = 2s + 156
s^2 - s - 156 = 0
(s - 13)(s + 12) = 0
From this, it looks like s can be either 13 or -12. But since it's a natural number, it cannot be negative. So, it is 13.

s was the smaller one. The larger one is s + 1 = 14
Check: 13*14=182=13+14+155
6 0
3 years ago
Read 2 more answers
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