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3 years ago

I don’t really understand how you figure out the points of a figure on rotation, please explain!

1 answer:

6 0

To rotate a figure
90 degrees(-y,x)
180 degrees(-x,-y)
270 degrees(y,-x)
If your original point is (1,2) or example and you want to rotate it say 270 degrees the final point would be (2,-1)
Hope this helped!!!!!

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Gary wants to buy a bicycle that usually sells for $74.99. The store is having a sale and all merchandise is discounted by 25%.

marusya05 [52]

Answer:

Step-by-step explanation:

4 0

3 years ago

The area of a rectangle gets reduced by 9 sq. units,if its length is reduced by 5 units and Breadth is increased by 3 units.If w

Scilla [17]

Let the length and breadth of the rectangle be x and y.

Area of rectangle is A = xy

Therefore, the new length will be = x-5

Therefore, the new breadth will be = y + 3

So new area will be xy-9

Now the new relation will be (x+3)(y+2)=xy+67

Cross – multiplication method–

$\dfrac{x}{{{b_1}{c_2} - {b_2}{c_1}}} =\dfrac{y}{{{a_2}{c_1} - {c_2}{a_1}}} = \dfrac{1}{{{a_1}{b_2} - {a_2}{b_1}}} || x = \dfrac{{{b_1}{c_2} - {b_2}{c_1}}}{{{a_1} {b_2} - {a_2}{b_1}}} y = \dfrac{{{a_2}{c_1} - (c_2}{a_1}}}{{{a_1}{b_2}-{a_2}{b_1}}}\\$

$\Rightarrow \dfrac{x}{{305 - ( - 18)}} =\dfrac{y}{{ - 12 - ( - 183)}} = \dfrac{1}{{9 - 10)}}\\\$

$\Rightarrow \dfrac{x}{{323}} = \dfrac{y}{{171}} = \dfrac{1}{{19}} \\\Rightarrow x = 17, y = 9 \\$

Therefore, the length is 17 and breadth is 9.

5 0

3 years ago

a bike wheel is 26 inches in diameter. what is the bike wheel's diameter in millimeters (1 inch = 25.4 millimeters)?

Setler [38]

If you would like to know the bike wheel's diameter in millimeters, you can calculate this using the following steps:

26 inches in diameter
1 inch = 25.4 millimeters
26 inches = 26 * 1 inch = 26 * 25.4 millimeters = 660.4 millimeters

The correct result would be 660.4 millimeters in diameter.

5 0

3 years ago

Read 2 more answers

Evaluate the expression 2(8-4)^2 - 10 divided by 2 A) 11 B)26 C)56 D)59

const2013 [10]

The answer is A. 11.

$\frac{2(8-4) ^{2} -10}{2}$
$\frac{2(4) ^{2} -10}{2}$
$\frac{2(16)-10}{2}$
$\frac{32-10}{2}$
$\frac{22}{2}$
11

I hope this was helpful.

7 0

3 years ago

Read 2 more answers

What is the area of the triangle pls help

OLga [1]

Answer:

Area of a triangle =1/2bh.

1/2×8×10=40cm^2.

8 0

3 years ago