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Ket [755]
3 years ago
6

Write 9.3 million in scientific notation

Mathematics
2 answers:
salantis [7]3 years ago
8 0

Answer:

9.3 × 10

9.3 \times 10^{6}

svetoff [14.1K]3 years ago
3 0

9.3 × 107 would be the scientific notation

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Los angeles is 1,744 miles from chicago; chicago is 714 miles from new york; and new york is 2,451 miles from los angeles. The t
klemol [59]

Answer:

170°

Step-by-step explanation:

Let a be the distance from Los Angeles to Chicago = 1744 miles, b be the distance from Chicago to New York = 714 miles and c be the distance from New York to Los Angeles = 2451 miles.

A is the angle opposite to side a, B is the angle opposite to side b and C is the angle opposite to side c.

Therefore the angle at Chicago is  C.

From cosine rule:

c² = a² + b² - 2ab × cos (C)

2ab × cos (C) = a² + b² - c²

cos (C) = (a² + b² - c²) / 2ab

Substituting:

cos (C) = (1744² + 714² - 2451²) / 2×1744×741

cos (C) = -0.986

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3 years ago
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1 year ago
The lines 2x=ky+2 and (k+1)x=6y-3 have same gradient. Find possible values of k
faust18 [17]

Answer:

k = 3 or k = -4

(Anyone can correct me if I'm wrong)

Step-by-step explanation:

2x=ky+2\to\ eq1\\(k+1)x=6y-3\to\ eq2\\$Change to this form: $y=mx+c\\ky=2x-2\\y=\frac{2x-2}{k}\\$gradient of eq1: $\frac{2}{k}\\6y=(k+1)x+3\\y=\frac{(k+1)x+3}{6}\\y=\frac{k+1}{6} x+\frac{3}{6}\\y= \frac{k+1}{6} x+\frac{1}{2}\\$gradient of eq1: $\frac{k+1}{6}\\$Since gradient, m, is the same for both lines,$\\\frac{2}{k}=\frac{k+1}{6}\\12=k^{2}+k\\k^{2}+k-12=0\\(k-3)(k+4)=0\\k=3 $ or $ k=-4

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2 years ago
Find the domain of the function: f(x) = (x2 - 9] + 3
baherus [9]

Answer:

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Step-by-step explanation:

6 0
3 years ago
NEEED HELPPPP FASTTTT!!!!!​
alexgriva [62]

Answer:

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Step-by-step explanation:

every time x goes up by 4

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7 0
3 years ago
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