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yulyashka [42]
3 years ago
9

Solve by completing the square.

Mathematics
1 answer:
AnnZ [28]3 years ago
6 0
I wasn’t able to fit the text in the space provided, so, please see the attached papers.

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Jennifer is saving 1/8 of her salary to buy a phone. Find her weekly pay is she has saved $65
Helen [10]

Let her monthly salary be x

1/8x = $65

x = $65 × 8 = $520

Her weekly pay is $520 ÷ 4 = $130

5 0
4 years ago
Evaluate the following expression when x = 6 and y = 2:
Liula [17]

Answer:

11/2

Step-by-step explanation:

\frac{ {x}^{2} +  {y}^{3}  }{2 + x}  \\

when,

x = 6 \\ y = 2

Now substitute the value we get,

\frac{ {6}^{2}  +  {2}^{3} }{2 + 6} \\  \\  =  \frac{36 + 8}{8}   \\  \\  =  \frac{44}{8} \\  \\  =  \frac{11}{2}

5 0
3 years ago
Which graph represents the equation x2 8y
LekaFEV [45]

Therefore by making a line through following points we can make graph which is parabola in shape

<h3>What is equation ?</h3>

Two things are equal, according to an equation. Like this: 9 + 2 = 11 . It will have an equivalent sign "=". According to that equation, "this equals that" is expressed as "what is on the left (9 + 2) is equal to what is on the right (11).

Here,

Given Equation : x² = 8y

Given Equation agrees with conventional equation of parabola on positive y-axis

x² = 4ay

Comparison of the two equations yields,

4a = 8 ⇒ a = 2

Focus of parabola = ( 0 , 2 ) ( 0 , 2 )

Parabola vertex equals ( 0 , 0 )

Axis of Symmetry = y-axis

To sketch its, we find some points

with x = 4 or -4 we get

4² = 8y ⇒ 16 = 8y ⇒ y = 2

So, points are ( 4 , 2 ) and ( -4 , 2 ) ( -4 , 2 )

we obtain when x = 8 or -8.

(-8)² = 8y ⇒ 64 = 8y ⇒ y = 8

So, points are ( 8 , 8 ) and ( -8 , 8 ) ( -8 , 8 )

Therefore by making a line through following points we can make graph which is parabola in shape

To know more about equation , visit

brainly.com/question/10413253

#SPJ4

The correct question is :-

Which graph represents the equation x2 = 8y?

3 0
2 years ago
- What is the difference between area and perimeter?​
allsm [11]

Answer:

Perimeter is a length of a figure's borders.

Pabc = a+b+c

Area shows the 'size' of the figure.

Sabc = 1/2*a*b*Sin(alpha) or 1/2*a*h or sqrt((half perimeter * a)(half perimeter * b)(half perimeter * c))

6 0
3 years ago
Read 2 more answers
Equation: -5 3/4- 3 1/2 Please help meh. ​
vampirchik [111]

Answer:

-9\frac{1}{4}

Step-by-step explanation:

-5\frac{3}{4}-3\frac{1}{2}

Step 1: Factor out the common term -1

=-\left(5\frac{3}{4}+3\frac{1}{2}\right)

Step 2: Add the whole numbers

5 + 3 = 8

Step 3: Combine the fractions:

\frac{3}{4}+\frac{1}{2} = \frac{5}{4}\\\\=-\left(8+\frac{5}{4}\right)

Step 4: Convert the improper fractions to mixed numbers

\frac{5}{4} = 1\frac{1}{4}\\\\=-\left(8+1\frac{1}{4}\right)

Step 5: Add the numbers

8 + 1 =9 \\\\=-9\frac{1}{4}

Therefore, the answer to the equation is -9\frac{1}{4} in fraction, and decimal; 9.25

4 0
3 years ago
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