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Gnesinka [82]
3 years ago
8

Points

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
3 0

Answer:

The amount invested at 9% is $30,000

Step-by-step explanation:

Mardi received an inheritance of $40,000.

Let x be the amount invested at 9%.

So, Amount invested at 10% = 40000-x

Her total annual income from the investments was  $3700.

So, 0.09x+0.1(40000-x)=3700

0.09x+4000-0.1x=3700

x=30000

Hence the amount invested at 9% is $30,000

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Answer:

option A

f(x) = (x – 1)2 + 3

Step-by-step explanation:

Given in the question a function,

f(x) = 4 + x² – 2x

<h3>Step 1</h3>

f(x) = 4 + x² – 2x

here a = 1

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<h3>Step 2</h3>

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h = 2/2

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Step 3

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Step 4

To convert a quadratic from y = ax² + bx + c form to vertex form,

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y = 1(x - 1)² + 3

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