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3 years ago

1. Solve x/6 = 20.

Mathematics

1 answer:

sineoko [7]3 years ago

6 0

$\frac{x}{6} \: = \: 20$
$x \: = \: 20 \: \times \: 6$
$x \: = \: 120$

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alexdok [17]

Answer:

A÷(3-B)

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3 years ago

Can someone answer this question please answer it correctly if it’s corect I will mark you brainliest

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walnut park

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Select the common ratio and the 4th term of the geometric series: 9, -6,4...

Blababa [14]

The given geometric sequence has the common ratio, r = -2/3, and the value of the 4th term, a₄ = -8/3.

A geometric sequence is a special series where every term is the product of the previous term and a common ratio.

The first term of a geometric sequence is represented as a, the common ratio as r, and the n-th term as aₙ, which is calculated as, aₙ = a.rⁿ⁻¹.

In the question, we are asked to find the common ratio and the 4th term of the geometric sequence, 9, -6, 4, ........

The first term of the sequence, a = 9.

The second term of the sequence, a₂ = -6.

By the formula of the n-th term, aₙ = a.rⁿ⁻¹, we can show that:

a₂ = a.r²⁻¹.

Substituting the values, we get:

-6 = 9(r²⁻¹),

or, r²⁻¹ = -6/9,

or, r = -2/3.

Thus, the common ratio of the given geometric sequence is -2/3.

The 4th term can be calculated using the formula of the n-th term, aₙ = a.rⁿ⁻¹ as:

a₄ = a.r⁴⁻¹ = a.r³.

Substituting the values, we get:

a₄ = 9(-2/3)³,

or, a₄ = 9.(-8/27),

or, a₄ = -8/3.

Thus, the 4th term of the given geometric sequence is -8/3.

Learn more about a geometric sequence at

brainly.com/question/24643676

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2 years ago

Melanie and Michael are on the north bank of a river that is flowing east to west at a speed of 0.5 m/s. They paddle their surf

IRINA_888 [86]

Answer:

total distance travel by them to cross river is 17.3 m

Step-by-step explanation:

Assume A be the initial position of both person and B as apposite point to A

u component of velocity along SOUTH DIRECTION is 4 cos30 = 0.4330 m/s

v component of velocity along SOUTH DIRECTION is 4 cos90 = 0 m/s

total speed will be = 0.4330 + 0 = 0.4330 m/s

time taken $= \frac{width/ of/ river}{speed}$

time taken $= \frac{30}{0.4330} = 69.3 sec$

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component of v in downstream direction = 4 cos 0 = 0.5 m/s

total component in downstream will be -0.25 + 0.5 = 0.25

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4 years ago

Triangles A B C and E F D are shown. The lengths of sides A B and E D are congruent. Angles C A B and E D F are 33 degrees. Angl

alexira [117]

Answer:

c on edge

Step-by-step explanation:

its not congruent, i got 100 on quiz btw

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