If x^(2) - 2 = 2^(2/3) + 2(-2/3) prove that x = 2^(1/3)+2^(-1/3)

Answers

Answer 1
Answer:

Step-by-step explanation:

x² - 2 = 2^(2/3) + 2^(-2/3)

x² = 2^(2/3) + 2 + 2^(-2/3)

x² = (2^(1/3))² + 2 × 2^(1/3) × 2^(-1/3) +

(2^(-1/3))² (It is in the form of a²+2ab+b²)

x² = (2^(1/3) + 2^(-1/3))²

x = 2^(1/3) + 2^(-1/3)


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Find the value of b.

A. 14
B. 15
C. 64
D. 289

Answers

Answer:

i would say b....

Step-by-step explanation:

Answer:

b or c

Step-by-step explanation:

What is the ratio of the change in y-values to the change in x-values?

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Answer:

need to see the question

Step-by-step explanation:

Nat’s grocery bill was $150, which includes a 5% club discount. What was nats bill before the discounts

Answers

The amount Nat's paid at the club before the discount is $157.90

Given:

Total bill including discount = $150

Discount = $5

Amount before discount = x

Total bill including discount = Amount before discount - (Discount × Amount before discount)

150 = x - (5% × x)

150 = x - (0.05 × x)

150 = x - 0.05x

150 = 0.95x

divide both sides by 0.95

x = 150 / 0.95

x = 157.89473684210

Approximately,

x = $157.90

Therefore, amount Nat's paid at the club before the discount is $157.90

Read more:

brainly.com/question/19535437

Answer:

$157.89

Step-by-step explanation:

The original price is x

you took away 5%, making the new price 95% of x, or .95x

Put it in an equation

.95x = 150

x = 150/.95

x = 30/.19

x = 3000/19

x=157 17/19

x is about $157.89

Compare.Use <,>,or =.

1,000 ft _____ 300 yd

Answers

1,000 ft > 300 yd
1,000 ft = 3 yards
1000ft > 300 yd

1ft=3yd
1000ft=333.33yd

What is the volume of a cube with a side length that measures 1 1/2 ft?

Answers

16.5ft squared 
...............................................
v=v=B*horv=b*w*h

11/2=5.5ft


5.5^3=166.375

160 dogs,there are 17 trucks each truck can hold 9 dogs.how much trucks you will need to hold 9 dogs in each truck?​

Answers

Answer:

160-153=7 dogs

you will need 1 more truck to hold 160 dogs

Step-by-step explanation:

1 truck=9 dogs

9x17=153 dogs

160-153=7 dogs

you will need 1 more truck to hold 160 dogs