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3 years ago

Find (7x10^6) - (4x10^4)

Mathematics

1 answer:

Grace [21]3 years ago

3 0

Answer: 6,960,000

Steps: (7 × 10⁶) - (4 × 10⁴)

Remove parentheses: 7 × 10⁶ - 4 × 10⁴

7 × 10⁶ = 7,000,000

4 × 10⁴ = 40,000

7,000,000 - 40,000 = 6,960,000

Plz mark brainliest:)

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It is 76°f at the 6000-foot level of a mountain, and 49°f at the 12,000-foot level of the mountain. write a linear equation to f

valina [46]

Answer:

$t(x) = 103 -0.0045x$

Step-by-step explanation:

We are given the following in the question:

Let the equation:

$t(x) = a + bx$

be the linear equation that represent temperature at an elevation x.

Temperature at 6000-foot level = 76 f

$76 = a + 6000b$

Temperature at 12000-foot level = 49 f

$49 = a + 12000b$

Solving the two equation, we get,

$76-49 = -6000b\\27=-6000b\\\\b = \dfrac{-27}{6000}\\\\b = -0.0045\\76 = a + (-0.0045)6000\\76 = a -27\\a = 76 + 27\\a =103$

Thus, we can write the linear equation as:

$t(x) = 103 -0.0045x$

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