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3 years ago

Round "0.7002" four decimal places

Mathematics

1 answer:

Lyrx [107]3 years ago

8 0

Answer:

0.7002 = about 1

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John weighs three times as much as Karen. Two times John's weight plus Karen's weight is 875 pounds. How much does John weigh? H

Leokris [45]

Answer:

John- 375

Karen- 125

Step-by-step explanation:

Answer 1...

j =3k

2j + k = 875

substituting the first eqn into the 2nd

2(3k) + k = 875

6k+ k =875

7k = 875

k =875/7 =125

thus j = 3(125) =375

3 0

3 years ago

Read 2 more answers

Expand and simplify 2/5(p+15)-1/3(9+6p)+4/5p

Pavlova-9 [17]

2/5p+6-3-2p+4/5p
-2p+6/5p+6-3+4
-10/5p+6/5p+3+4
-4/5p+7
-0.8p+7

7 0

3 years ago

How can we factorise the expression: 2x^6+17x^3+8?

LekaFEV [45]

Answer:

$(a + 2)( {a}^{2} - 2a + 4 )(2 {x}^{ 3} + 1)$

Step-by-step explanation:

$2x^6+17x^3+8 \\ = 2x^6+16x^3 + {x}^{3} +8 \\ = 2{x}^{3} ( {x}^{3} + 8) + 1( {x}^{3} + 8) \\ = ( {x}^{3} + 8)(2 {x}^{ 3} + 1) \\ = ( {x}^{3} + {2}^{3} )(2 {x}^{ 3} + 1) \\ = (a + 2)( {a}^{2} - 2a + {2}^{2} )(2 {x}^{ 3} + 1) \\ = (a + 2)( {a}^{2} - 2a + 4 )(2 {x}^{ 3} + 1) \\$

7 0

4 years ago

Which one of the following numbers are irrational ?

liq [111]

Answer: B and E are irrational numbers

5 0

3 years ago

3 x {(300 - 70 ÷ 5) - [3 x 23 - (8 - 2 x 3)]}<br><br> A.657<br> B.2433<br> C. -843

Liula [17]

Answer:

657

Step-by-step explanation:

pemdas

5 0

3 years ago