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Kruka [31]
2 years ago
11

Is 0=(x+4)^2-7 rational or irrational

Mathematics
1 answer:
JulsSmile [24]2 years ago
8 0

Answer:

Irrational.

Step-by-step explanation:

0=(x+4)^2-7

(x + 4)^2 = 7

Taking square roots:

x + 4  =  ±√7

x = -4 ±√7

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Answer
sergij07 [2.7K]

Answer:

Answer:

1). Option (A)

2). Option (A)

Step-by-step explanation:

1). A worker bee has the mass = 0.00011 kg

  In scientific notation we can convert the mass of bee as,

  0.00011 =

                =

  Since 1.1 ≈ 1,

  Therefore, 1.1 × 10⁻⁴ ≈ 1 × 10⁻⁴ kg

  Option (A) is the answer.

2). An African elephant has a mass = 8139 kg

   In scientific notation,

   8139 = 8.139 × 10³

   Since, 8.139 ≈ 8

   Therefore, 8139 kg = 8.139 × 10³ kg

   Option (A) is the answer.

Step-by-step explanation:

Hope this helps! ;)

3 0
2 years ago
Read 2 more answers
Graph the function f(x)=−14x−2.<br><br> Use the line tool and select two points to graph.
Akimi4 [234]

Answer:

You should do this on your own but if you consider the way I graph it, the slope should be going downwards and in the middle of the graph, the y-intercept should be two units down.  Each unit for the x line should be 14 units apart as stated in the function.

Step-by-step explanation:

Hopefully this helps ^^

7 0
2 years ago
Read 2 more answers
(5x2+4xy-7)+(3x2+2xy+3)
Juliette [100K]

Answer:

8x² + 6xy - 4

Step-by-step explanation:

(5x² + 4xy - 7) + (3x² + 2xy + 3) ← remove parenthesis

= 5x² + 4xy - 7 + 3x² + 2xy + 3 ← collect like terms

= 8x² + 6xy - 4

3 0
2 years ago
Find square root of 144 by factorisation method​
Nady [450]

\huge \boxed{\mathbb{QUESTION} \downarrow}

  • Find square root of 144 by factorisation method.

\large \boxed{\mathbb{ANSWER\: WITH\: EXPLANATION} \downarrow}

We can find the square root of 144 using the factorisation method. In this method, you need to factorise 144 first. Then, you'll get your answer in the form of prime factors. In this case, it's ⇨ 2 × 2 × 2 × 2 × 3 × 3.

__________________

To find the square root using factorisation, we need to group the same number in pairs. That is, 2 × 2 × 2 × 2 × 3 × 3 by grouping same numbers in pairs will become ⇨ (2, 2), (2, 2), (3, 3).

__________________

Now, you should take only 1 of the number from these groups. So, (2, 2), (2, 2), (3, 3) will change to ⇨ 2 × 2 × 3.

__________________

Finally, just multiply this set of numbers to find the square root of 144. 2 × 2 × 3 = 4 × 3 = \large\boxed{\underline{\bf \: 12}} ⇨ square root of 144.

__________________

  • The square root of 144 is <em><u>1</u></em><em><u>2</u></em><em><u>.</u></em>

8 0
2 years ago
Determine the value of the account if the initial investment is $8,000 compounded monthly at a rate of 6% after 10 years
MatroZZZ [7]

Answer:

$14,555.17

Step-by-step explanation:

initial investment, p = $8,000

rater, r = 6% = 0.06

Number of times compounded yearly = 12

Time, t = 10 years

Amount, A = p(1 + r/n)^tn

A = 8000(1 + 0.06/12)^10*12

A = $14,555.17

8 0
3 years ago
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