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Phantasy [73]
3 years ago
7

Please help me with both answers and explain please

Mathematics
2 answers:
icang [17]3 years ago
7 0

Divide 15 by 6 which equals 2.5

Multiply 2.5 by 8 which equals 20

Answer: 20

Alexeev081 [22]3 years ago
5 0
Part A: 6 goes into 15 2 and a half times, so the answer is 20

part B: there are 8 tropical fantasies sold for every 6 Arizonas sold, which means there is a difference of 2. 5×2=10 so 5×6=30 and 5×8=40
So 30 arizonas and 40 tropical fantasies
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Answer:

W > 0.5L

Perimeter:

2L + 2W < 180

2L + 2(0.5L) < 180

2L + 1L < 180

3L < 180

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 L < 60

Length should be less than or equal to 60 inches while width should be greater than or equal to 30 inches.

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2 years ago
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2 years ago
X squared+ y squared = 2 y = 2x squared – 3 Which of the following describes the system?
cluponka [151]

Answer:

x=-1,1,-\sqrt{\frac{7}{4} },\sqrt{\frac{7}{4}} and y=-1,\frac{1}{2}

The ordered pair solutions are (-\sqrt{\frac{7}{4}},0.5), (\sqrt{\frac{7}{4}},0.5), (-1,-1), and (1,-1).

Step-by-step explanation:

I'm assuming the system is \left \{ {x^2+y^2=2} \atop {y=2x^2-3}} \right.:

x^2+y^2=2

x^2+(2x^2-3)^2=2

x^2+(4x^4-12x^2+9)=2

x^2+4x^4-12x^2+9=2

4x^4-11x^2+9=2

4x^4-11x^2+7=0

x^4-11x^2+28=0

(x^2-7)(x^2-4)=0

(4x^2-7)(x^2-1)=0

4x^2-7=0

4x^2=7

x^2=\frac{7}{4}

x=\pm\sqrt{\frac{7}{4}}

x^2-1=0

x^2=1

x=\pm1

y=2x^2-3

y=2(\pm\sqrt{\frac{7}{4}})^2-3

y=2({\frac{7}{4}})-3

y=\frac{7}{2}-3

y=\frac{1}{2}

y=2x^2-3

y=2(\pm1)^2-3

y=2(1)-3

y=2-3

y=-1

Therefore, x=-1,1,-\sqrt{\frac{7}{4} },\sqrt{\frac{7}{4}} and y=-1,\frac{1}{2}

The ordered pair solutions are (-\sqrt{\frac{7}{4}},0.5), (\sqrt{\frac{7}{4}},0.5), (-1,-1), and (1,-1).

4 0
2 years ago
Function f is an exponential function.
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3 years ago
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777dan777 [17]

Answer:

6

Step-by-step explanation:

18.3/3.05=6

18.3 / 6=3.05

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