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asambeis [7]
3 years ago
14

Help me pleeeeeeeeeeeeease

Mathematics
1 answer:
suter [353]3 years ago
7 0

Answer:

1:9

Step-by-step explanation:

9/9 = 1 and 81/9 = 9

Thus, 9:81 ratio simplified is 1:9

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After 15 years my age will be 4 times of present age what is my present age
scoray [572]
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The number of terms in a binomial expansion
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5 0
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Please help!!
weqwewe [10]

Answer:

 The vertex of the parabola   = (-7 , -4)  

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that the parabola  y = 4 x² + 56 x +192

                                 y = 4 (x² + 14 x + 48 )

                                 y = 4 ( x² + 2 ×  7 (x) + 49-1)

                                 y = 4 ( x² + 2 ×  7 (x) + 49)- 4

we apply the formula

(a +b)² = a² + 2ab + b²

                                y = 4 ( x + 7 )² - 4

<u>Step(ii):-</u>

<em>The general form of the parabola in algebraically</em>

<em>                               y = a ( x-h)² +k</em>

<em>The equation </em>

<em>                           y = 4 ( x + 7 )² - 4</em>

                          y = 4 ( x-(-7))² - 4

  The vertex of the parabola (h,k) = (-7 , -4)  

<u>Final answer:-</u>

The vertex of the parabola  = (-7 , -4)  

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If n = 4, the value of the expression 28 – 12 + vñ : 2 is<br> 0 15<br> 021<br> O<br> 017
Alexandra [31]

Answer:

17

Step-by-step explanation:

28 - 12 + \sqrt{n} \div 2 =

n = 4

= 28 - 12 + \sqrt{4} \div 2

= 16 + 2 \div 2

= 16 + 1

= 17

6 0
3 years ago
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