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julia-pushkina [17]
3 years ago
12

Evaluate 7xy ÷ w + 4z when w = 10,x = 2,y = 5, and z = 9

Mathematics
1 answer:
MissTica3 years ago
4 0
First,, we need to insert the numbers in before we can start solving. This will change the expression to the following:
7(2)(5) ÷ 10 + 4(9)
We are first going to begin solving this by calculating the expression 7 × 2 × 5 ÷ 10. We can start this solving this by multiplying 2 by 5.
7 × 10 ÷ 10
Any expression divided by itself equals 1,, so the expression changes to:
7 × 1 
Any expression multiplied by 1 remains the same,, so add 7 back into the equation.
7 + 4 × 9
Multiply the numbers together.
7 + 36
Lastly,, add the numbers together to find your final answer.
43
Let me know if you have any further questions.
:)
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Answer:

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The range is found the same way, but with the y values.

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3 0
2 years ago
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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densk [106]
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 Where,
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Step-by-step explanation:

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