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Ipatiy [6.2K]
3 years ago
10

Perimeter of a semi circle with a diameter of 3.5m​

Mathematics
1 answer:
Advocard [28]3 years ago
5 0

Answer:

10.99

Step-by-step explanation:

c=\pid

c=3.14 x 3.5cm

c=10.99

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Without actual division prove that x4 +2x3 -2x2 +2x -3 is exactly divisible by<br> x2 +2x-3
Brut [27]

Answer:

Step-by-step explanation:                

\displaystyle\Large\boldsymbol{} x^4+2x^3-2x^2+2x-3= \\\\\\x^4+2x^2(x-1)+2x-\underbrace{2-1}_{-3}=  \\\\\\x^4-1+2x^2(x-1)+2x-2 = \\\\\\(x^2-1)(x^2+1)+2x^2(x-1)+2(x-1) = \\\\\\\underline{(x-1)}(x+1)(x^2+1)+2x^2\underline{(x-1)} +2\underline{(x-1)} =\\\\\\(x-1)((x+1)(x^2+1)+2x^2+2)=\\\\\\(x-1)(x^3+x^2+2x^2+x+2+1)=\\\\\\(x-1)(x^3+3x^2+x+3) =\\\\\\(x-1)( \underline{(x+3)}x^2+\underline{(x+3)})=(x^2+1)\underbrace{(x-1)(x+3)}_{x^2+2x-3}= \\\\\\(x^2+1)(x^2+2x-3) : (x^2+2x-3)=x^2+1

7 0
2 years ago
Juan has x apples and 8 oranges. How many fruits does he have? Give your answer in terms of x
zubka84 [21]
X apples and 8 oranges = x+8

The answer is x+8.

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3 0
3 years ago
Jonathan sold five times as many computers as Joe sold last year. In total,
Rom4ik [11]

Answer:

Step-by-step explanation:

Let the number of computers sold by Joe be represented by variable X

If Jonathan sold 5 times as many computers , it means he sold 5 times X= 5X

Total number of computers sold by both Jonathan and Joe = 78

Hence, X+5X =78

= 6X = 78

Divide both sides by 6 to solve for X;

X = 78/6

X = 13

And 5X = (5* 13) = 65

Therefore, Jonathan sold 65 computers while Joe sold 13

3 0
3 years ago
What is 1/4 of 1,360
yan [13]

Answer: 340

Step-by-step explanation:

1360 / 4 = 340

5 0
3 years ago
Read 2 more answers
A side of a square sink is represented by the
aleksandr82 [10.1K]

Answer:A = 6s²

a) s = 3in, subtitute

A = 6 · 3² = 6 · 9 = 54 (in²)

b) s = 1.5 m, subtitute

A = 6 · 1.5² = 6 · 2.25 = 13.5 (m²)

Step-by-step explanation:

8 0
2 years ago
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