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Ede4ka [16]
2 years ago
9

Evaluate the expression when a = 10. a/4 + 1/3

Mathematics
1 answer:
liraira [26]2 years ago
7 0
10/4 + 1/3 = 17/6

step 1: reduce the fraction with 2:

5/2 + 1/3

step 2: write all numerators above the common denominator 6:

15 + 2/ 6

step 3: add the numbers:

17/6
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If x=1+√2, evaluate x³+1/x³.
aleksandr82 [10.1K]

Answer:

10√2

Step-by-step explanation:

If x=1+√2, evaluate x³+1/x³

--------

  • x³+1/x³= (x+1/x)(x²-x*1/x+1/x²)=(x+1/x)(x²+1/x²+2-3)= (x+1/x)((x+1/x)²-3)
  • x+1/x= 1+√2 + 1/(1+√2)= 1+√2+(1-√2)/(1-√2)(1+√2)= 1+√2 - (1-√2)= 2√2
  • x³+1/x³= 2√2((2√2)²-3)= 2√2(8-3)= 10√2
3 0
2 years ago
Example Given
Delicious77 [7]
The answer is 5

a^2+b^2=c^2
9+16=25
sq root of 25 is 5
4 0
2 years ago
Read 2 more answers
What is the simplified form of the following expression? Assume
HACTEHA [7]

Answer:

yes a

Step-by-step explanation:

4 0
3 years ago
Solve for x or find x ​
Varvara68 [4.7K]
X=9
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3 0
2 years ago
Find $y$ if the point $(-6,y)$ is on the line that passes through $(-1,7)$ and $(3,-2)$.
vichka [17]

Answer:

  y = 18.25

Step-by-step explanation:

The 2-point form of the equation of a line can be used to write the equation of the line through the given points.

  y = (y2 -y1)/(x2 -x1)(x -x1) +y1

  y = (-2 -7)/(3 -(-1))(x -(-1)) +7

  y = -9/4(x +1) +7

For x = -6 this evaluates to ...

  y = -9/4(-6 +1) +7 = (9/4)(5) +7 = 45/4 +7

  y = 18 1/4

6 0
3 years ago
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