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Arturiano [62]
3 years ago
10

Buffy is purchasing a decorative ribbon in sections that each measure

Mathematics
1 answer:
Anestetic [448]3 years ago
6 0
So 2.5ft=$2.72
200/2.5=80 so she needs 80 sections
80*2.72=217.6
She will need to save $217.60
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Luis has a $10 and three $5 bills. He spends $12.75 on entrance fee to an amusement park and $8.50 on snacks. How much does he h
Ulleksa [173]
3x5=$15
15+10=$25 total to spend

He spends 12.75+8.5= $21.25

25-21.25=$3.75 left
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3 years ago
How many x-intercepts does the graph of y = 2x^2 – 8x + 5 have?
nydimaria [60]
A graph of the equation shows the appropriate choice to be
  C. 2

_____
If you would rather, you can look at the value of the discriminant. For the equation y = ax²+bx+c, the discriminant (d) is
  d = b²-4ac
For your equation, this evaluates to
  d = (-8)²-4(2)(5) = 64 -40 = 24
When the discriminant is positive, the function has two real roots (2 x-intercepts). When it is zero, there is only one x-intercept, and when it is negative, there are none (the roots are complex).

8 0
3 years ago
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Work out the area of this circle. Take pie to be 3.142 and give your answer to 2 decimal places.
yan [13]

Answer:

Work out the area of this circle. Take pie to be 3.142 and give your answer to 2 decimal places.

Step-by-step explanation:

8 0
3 years ago
Hana is playing a virtual reality game in which she must toss a disc to land on the largest triangular section of the board. If
svetoff [14.1K]

Answer:

Her probability of success is 1/2

Step-by-step explanation:

Firstly, we have to calculate the area of the entire board

That would be the rectangle of the measure 50 cm by 40 cm

We have the area as the product of this two

That would be 50 * 40 = 2,000 cm^2

Now, the value calculated is the area of the entire possible landing area

Secondly, we need to get the area that counts as a success

that would be the area of the triangle that has a base of 50 cm and a height of 40 cm

The area of this is the product of the two divided by 2

we have this as ;

50 * 40 * 1/2 = 1,000 cm^2

So, her probability of success is simply the area of the triangle divided by the area of the rectangle

= 1000/2000 = 1/2

8 0
3 years ago
QUICK ANSWER THIS!!!<br> j/-2+7=−12
VMariaS [17]

Answer:

38

Step-by-step explanation:

j/-2=-19

j=38

5 0
3 years ago
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