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Anastaziya [24]
3 years ago
8

Determine the relationship of the following linear equations: F(x)=2/7x+3 and g(x)=7/2x-9 Neither Perpendicular Parallel Adjacen

t
Mathematics
1 answer:
andreyandreev [35.5K]3 years ago
8 0

Answer:

the solution is neither because one of them doesn't have a negative

the reciprocal is equal to -1

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Which of the following equations correctly represents the law of cosines?
dusya [7]

Answer:

C

Step-by-step explanation:

7 0
3 years ago
A.2/7<br> B.3/7<br> C.5/7<br> D.4/7
Dafna1 [17]

Answer:

  • The C indicates the opposite of that
  • So it would be 4/7

3 0
2 years ago
Read 2 more answers
The age of some lecturers are 42,54,50,54,50,42,46,46,48 and 48 calculate the mean age and standard deviation
rjkz [21]

Answer:

Mean age: 48

Standard deviation: 4

Step-by-step explanation:

a) Mean

The formula for Mean = Sum of terms/ Number of terms

Number of terms

= 42 + 54 + 50 + 54 + 50 + 42 + 46 + 46 + 48+ 48/ 10

= 480/10

= 48

The mean age is 48

b) Standard deviation

The formula for Standard deviation =

√(x - Mean)²/n

Where n = number of terms

Standard deviation =

√[(42 - 48)² + (54 - 48)² + (50 - 48)² +(54 - 48)² + (50 - 48)² +(42 - 48)² + (46 - 48)² + (46 - 48)² + (48 - 48)² + (48 - 48)² / 10]

= √-6² + 6² + 2² + 6² + 2² + -6² + -2² + -2² + 0² + 0²/10

=√36 + 36 + 4 + 36 + 4 + 36 + 4 + 4 + 0 + 0/ 10

=√160/10

= √16

= 4

The standard deviation of the ages is 4

3 0
3 years ago
Find the value of x.<br> X=____
musickatia [10]
(3x+1)+(2x+4)=90
3x+1+2x+4=90
5x+5=90
5x=85
x=17
4 0
2 years ago
Would you please help me? Thanks.
Butoxors [25]
The best answer is D.

According to the pythagorean theorem, a^2+b^2=c^2 in a right triangle where a and b are the legs and c is the hypotenuse.

The diagram given gives the length of both legs, so plug it into the equation to get c^2= 24^2+45^2
7 0
3 years ago
Read 2 more answers
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