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Marat540 [252]
3 years ago
13

Expand & simplify(x + 1)(x + 1)​

Mathematics
1 answer:
Vinvika [58]3 years ago
3 0

Answer: x^2+2x+1

Step-by-step explanation:

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In 1962, the average cost of 1 gallon of gasoline in the United States was $0.31. The cost of gasoline increased by an average o
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Answer:

3*10=30.

Step-by-step explanation:

increased by 3% each year for 10 years

increased 30%.

0.31*0.30= .92

7 0
3 years ago
Can someone help me plsss
attashe74 [19]

Answer:

c=23/24

Step-by-step explanation:

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c+9/24=32/24

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         =23/24

3 0
3 years ago
Which of the following appears to be an irrational number?
77julia77 [94]
That would be D.....because a non-terminating, non-repeating decimal number is irrational
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3 years ago
Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth x^2+10=-7x
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4 0
3 years ago
The radius of a circle is 13 feet. What is the length of an arc that subtends an angle of
Irina-Kira [14]

Answer:

The length of the arc is 221π/18 ft or 38.55 ft

Step-by-step explanation:

Given

Subtended angle, θ = 17π/18

Radius, r = 13 ft

Required

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When an angle is given in radians, the length of the arc is calculated using the formula below

Length = rθ

By substituting

Length = 13 * 17π/18

Length = 221π/18

The answer can be left in this form.

But for simplification purpose, I'll solve further.

Taking π as 3.14

Length = 221 * 3.14/18

Length = 693.94/18

Length = 38.552222

Length = 38.55 ft (Approximated).

Hence, the length of the arc is 221π/18 ft or 38.55 ft

8 0
4 years ago
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