3 years ago

How many pensioners should be in the sample

Mathematics

1 answer:

DENIUS [597]3 years ago

6 0

Answer:

Step-by-step explanation:

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Mikey has $100 to spend on books. She wants to buy at least 14 books. Hardback books cost $15.00 and paperback books cost $7.00.

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15x+7y>14 is the right answer

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2 years ago

2 ratios equivalent to 8\3

borishaifa [10]

Some equivalent fractions of 8/3 are:
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2 years ago

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Write a quadratic equation with -4 and 3/2 as it’s roots. Write the equation in the form ax^2 + bx + c = 0, where a, b, and c ar

jonny [76]

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Answer:

2x² +5x -12 = 0

Step-by-step explanation:

When p and q are roots of a quadratic, its factored form can be written as ...

(x -p)(x -q) = 0

Here, the roots are given as -4 and 3/2, so the factored form would be ...

(x -(-4))(x -(3/2) = 0

Multiplying by 2 gives us ...

(x +4)(2x -3) = 0

Expanding the product, we find the desired quadratic is ...

2x² +5x -12 = 0

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2 years ago