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Nadya [2.5K]
3 years ago
13

8 x 5/6 = z What is z? A. 53/6 B. 40/6 C. 13/48 D. 5/48

Mathematics
2 answers:
sergejj [24]3 years ago
7 0

Answer:

B. 40/6

Step-by-step explanation:

(8x5)/6

40/6

.........

blondinia [14]3 years ago
5 0

Answer:

\huge \boxed{  \boxed{\mathbb{B)} \frac{40}{6} }}

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • equation
  • PEMDAS
<h3>given:</h3>
  • 8×⅚=z
<h3>let's solve:</h3>
  1. \sf multiply \: both \: sides \: by \: 6 :  \\ (8  \times  \frac{5}{6} ) \times 6 = z \times 6
  2. \sf simplify :  \\ 8 \times 5 = 6z \\ 40=6z
  3. \sf divide \: both \: sides \: by \: 6 :  \\ \frac{6z}{6}  =  \frac{40}{6}  \\ z =  \frac{40}{6}
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Step-by-step explanation:

The general steps to rewriting the function in vertex form are ...

1. factor out the leading coefficient (if not 1) from the first two terms

2. add inside parentheses the square of half the x coefficient; subtract the same amount outside parentheses. The factor in front of the parentheses must be taken into account when adding the same amount outside.

3. rewrite the content of parentheses as a square, collect terms outside parentheses.

___

A. y = x² -14x +58

y = (x² -14x) +58 . . . . . . . . . . step 1

y = (x² -14x +49) +58 -49 . . . step 2

y = (x -7)² +9 . . . . . . . . . . . . . step 3

__

B. y = -x² -6x -20

y = -(x² +6x) -20

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y = a(x -h)² +k

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The function of part A has a minimum at the vertex (7, 9). 9 is the minimum value.

___

D. The function of part B has a maximum at the vertex (-3, -11). -11 is the maximum value.

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