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zaharov [31]
3 years ago
11

Half of the product of two consecutive numbers is 105. To solve for n, the smaller of the two numbers, which equation can be use

d?
A.) n^2 + n – 210 = 0
B.) n^2 + n – 105 = 0
C.) 2n^2 + 2n + 210 = 0
D.) 2n^2 + 2n + 105 = 0
Mathematics
2 answers:
solniwko [45]3 years ago
7 0

Answer:

n^2+n-210=0

Step-by-step explanation:

alexdok [17]3 years ago
6 0
There are several information's already given in the question. Based on those information's the answer can be detrmined.
Smaller of the two integers = n
Larger of the two integers = n + 1
Then
(1/2) * [(n) * ( n + 1)] = 105
(1/2) * (n^2 + n) = 105
m^2 + n = 210
n^2 + n - 210 = 0
From the above deduction, it can be concluded that the correct option among all the options that are given in the question is the first option or option "A".
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Military radar and missile detection systems are designed to warn a country of enemy attacks. A reliability question deals with
Nadusha1986 [10]

Answer:

Step-by-step explanation:

Given that a particular detection system has a 0.83 probability of detecting a missile attack.

Also each system is independent of the other to detect missile attack.

a)  the probability that a single detection system will detect an attack=0.83

b) the probability that at least one of the systems will detect the attack given two systems= 1-Prob no system detects

=1-(1-0.83)(1-0.83)\\\\=1-0.0289\\=0.9711

c)  If three systems are installed,  the probability that at least one of the systems  will detect the attack

= 1- none of the three systems detect attack

= (1-0.17^3)\\=1-0.004913\\=0.995087

d) We find that probability of detecting is more if we increase the system form 1 to 2 and 2 to 3.

Hence for safety and defence purpose multiple detection system is recommended.

7 0
3 years ago
Anika is hiking on a rectangular trail at the national park. There are four resting spots along the corners of the trail. On the
tia_tia [17]
The perimeter is 10 try to draw these points on the graph and count the distance between each or you can just look at the coordinates and find the distance and then add length and width
4 0
3 years ago
Toán lớp 8 <br> giải bất phương trình: 2x + 2 &gt; 4
frutty [35]

Answer:

x>1

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
5) 3(8+ n) - 15 = 24
scoundrel [369]
•First you multiply parentheses by 3 24+3n-15=24
•then u cancel equal terms 3n-15=0
•Move the constant to the right
3n-15=0
3n=15
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Answer is n=5 ☺️

8 0
3 years ago
N+12=4 what is the process of the equation
Sunny_sXe [5.5K]

Hey there!

Here is your question -

n+12=4

In this equation, you're looking for n alone. To keep the variable alone, you have to do the opposite of what's happening to the variable.

In this equation, 12 is being added to n. The opposite of that is subtracting 12.

Subtract 12 from both sides -

n+12-12=4-12 \\ n=-8

Your answer is -8.

Hope this helps! :)

6 0
3 years ago
Read 2 more answers
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