1) Simplify: -7(2m - 8) + 6m 2) Expand: -10(1 - 6r)

Mathematics

1 answer:

ankoles [38]2 years ago

4 0

Answer:

$1)\: -7(2m - 8) + 6m$

Use distributive property:

$-14m+56+6m$

$-8m+56$

____________

$2)\: -10(1 - 6r)$

Use distributive property:

$-10+60r$

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hichkok12 [17]

Answer:

The coordinates of C(22/3, 7)

Step-by-step explanation:

Partitioning between two points A and B in the ratio a:b.

The x-coordinate of the point of partition C is found at

XC = XA*(b/(a+b)+XB(a/(a+b) ..............(1)

Similarly, the x-coordinate of the point of partition is found at

YC = YA*(b/(a+b)+YB(a/(a+b)...............(2)

Given A(8,8), B(4,2), partition ratio of A:B = 1:5,

substitute in (1)

XC = 8*5/6+4*1/6 = 44/6 = 22/3

YC = 8*5/6 + 2*1/6 = 42/6 = 7

The coordinates of C(22/3, 7)

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Answer:

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Step-by-step explanation:

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2 years ago

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An auto weighing 2,500 pounds is on a street inclined at 10 with the horizontal. Find the force necessary to prevent the car fro

Misha Larkins [42]

Answer:

1931.7N

Step-by-step explanation:

We are told in the question that :

An auto ( a car) weighs = 2500 pounds

It s inclined at n horizontal Ange of 10°