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stiv31 [10]
3 years ago
11

NEED HELP. 25 points

Mathematics
1 answer:
frutty [35]3 years ago
3 0

Answer:

1) 0.395^11

2) 0.682^-9

Step-by-step explanation:

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Mike rides his horse with a constant speed of 14 km/h. How far can he travel in 3 1/2 hours?
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Answer:

126 km/h

Step-by-step explanation:

Sorry if I'm wrong:/

8 0
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10. Polygon WXYZ has vertices W(-1.5, 1.5),
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Answer:

See explanation

Step-by-step explanation:

Polygon WXYZ has vertices W(-1.5, 1.5), X(6, 1.5), Y(6, -4.5), and Z(-1.5, -4.5).

Find the slopes of all sides:

WX:\ \dfrac{1.5-1.5}{6-(-1.5)}=\dfrac{0}{7.5}=0 - horizontal line

XY:\ \dfrac{-4.5-1.5}{6-6}=\dfrac{-6}{0} - slope undefined, so the line is vertical

YZ:\ \dfrac{-4.5-(-4.5)}{-1.5-6}=\dfrac{0}{-7.5}=0 - horizontal line

ZW:\ \dfrac{1.5-(-4.5)}{-1.5-(-1.5)}=\dfrac{6}{0} - slope undefined, so the line is vertical

Vertical and horizontal lines are perpendicular, so all angles W, X, Y and Z are right angles. Hence, quadrilateral WXYZ is a rectangle

6 0
3 years ago
Divide (6.3 × 103) by (1.8 × 105) giving your answer in Scientific Notation.
Sauron [17]

Answer:

(6.3*10³) ÷ (1.8*10⁵)

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then:

(6,3*10³) ÷ (1.8*10⁵) = (0.063*10⁵) ÷ (1.8*10⁵)

= 0.063/1.8

= 0.035

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Step-by-step explanation:

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2 years ago
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Step-by-step explanation:

61 + 62 + 63 = 186

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3 years ago
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