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3 years ago

3 x 10 + 2 x 1 + 6 x 1|100 + 4 x 1|1,000 is the expanded form of which decimal?

Mathematics

1 answer:

Arisa [49]3 years ago

4 0

Answer:

6 × 1 + 3 ×(1/100) + 9 × 10 + 2 × (1/10)

We know that 1, 1/100, 10, and 1/10 are place values. We can write 14.25 as 1 × 10 + 4 × 1 + 2 × (1/10) + 5 × (1/100), for example. We can use that information to solve the above.

We also can multiply and add the expression.

6 × 1 + 3 ×(1/100) + 9 × 10 + 2 × (1/10)

6 + 3/100 + 90 + 2/10

6 + 0.03 + 90 + 0.2

96.23

Step-by-step explanation:

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Find the x-intercepts of the parabola with vertex (1,-108) and y-intercept (0,-105). Write your answer in this form: (X1,y1), (x

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Answer:

(7, 0) and (-5, 0)

Step-by-step explanation:

<u>Vertex form</u>

$y=a(x-h)^2+k$

(where (h, k) is the vertex)

Given:

vertex = (1, -108)

$\implies y=a(x-1)^2-108$

Given:

y-intercept = (0, -105)

$\implies a(0-1)^2-108=-105$

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$\implies y=3(x-1)^2-108$

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$\implies x=7, x=-5$

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3 years ago

3 x 10 + 2 x 1 + 6 x 1|100 + 4 x 1|1,000 is the expanded form of which decimal?​

3 x 10 + 2 x 1 + 6 x 1|100 + 4 x 1|1,000 is the expanded form of which decimal?