3 years ago

Help i dunno it please please

Mathematics

1 answer:

Vladimir79 [104]3 years ago

7 0

Answer:

it takes 24 days

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The development of technology _____________.

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The eqution of the diagonal of a parallelogram is 3y=5x +k. The two opposite vertices of a parallelogram are the points (1,-2),

astraxan [27]

Answer:

$k = 1$

Step-by-step explanation:

Given

$3y = 5x + k$

Opposite points: $(1,-2)$ and $(-2,1)$

Required

Find k

First, calculate the midpoint of the opposite points.

$(x,y) = 0.5(x_1 + x_2,y_1 + y_2)$

This gives:

$(x,y) = 0.5(1 -2,-2 + 1)$

$(x,y) = 0.5(-1,-1)$

Open bracket

$(x,y) = (-0.5,-0.5)$

The equation $3y = 5x + k$ becomes:

$3 * -0.5 = 5 * -0.5 + k$

$-1.5 = -2.5 + k$

Solve for k

$k = 2.5-1.5$

$k = 1$

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2 years ago

Select the proper order from least to greatest for 2⁄3 , 7⁄6 , 1⁄8 , 9⁄10 . A. 2⁄3 , 9⁄10 , 7⁄6 , 1⁄8 . B. 7⁄6 , 9⁄10 , 2⁄3 , 1⁄

Nataly_w [17]

The correct answer is B.
$\frac{7}{6}$
is greater then one, 9/10 is only slightly less than one, 2/3 is a little more than half, and 1/8 is the smallest number.

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Ravi has ridden 44 miles of a bike course. The course is 55 miles long. What percentage of the course has Ravi ridden so far?

vitfil [10]

Answer:

80%

Step-by-step explanation:

To find the percent that he has ridden, divide the number of miles he has ridden by the total length of the course

44/55

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So, Ravi has ridden 80% of the course

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klio [65]

Answer:

10.2 cm²

Step-by-step explanation:

The area (A) of a regular hexagon is

A = $\frac{1}{2}$ × perimeter × apothem

Perimeter = 6 × 2 = 12 cm ( hexagon has 6 sides ), hence

A = 0.5 × 12 × 1.7 = 6 × 1.7 = 10.2 cm²

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3 years ago

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