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3 years ago

Use mapping notation to represent a 90 degree clockwise rotation about the origin of the point (x, y)

Mathematics

2 answers:

Vaselesa [24]3 years ago

6 0

Answer:

see explanation

Step-by-step explanation:

Under a clockwise rotation about the origin of 90°

a point (x , y) → (y , - x)

Mashcka [7]3 years ago

6 0

Answer:The answer is choice C. and the rotation is 180

Step-by-step explanation:i just got it right

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3 feet of snow fell in 1 2/3 hours. What was that rate in inches per hours?

dalvyx [7]

Answer:

21 $\frac{3}{5}$ in/hr

Step-by-step explanation:

Distance of snow fall = 3ft

Time taken = 1 $\frac{2}{3}$ hrs

Unknown:

Rate of snowfall = ?

Solution:

The rate of the snowfall is the same as the speed of the fall;

Rate of snowfall = $\frac{distance of snowfall}{time}$

Convert the ft to inches;

1ft = 12inches

3ft = 3 x 12 = 36inches

Input the parameters and solve;

Rate of snowfall = $\frac{36}{\frac{5}{3} }$ = 36 x $\frac{3}{5}$ = 21 $\frac{3}{5}$ in/hr

7 0

3 years ago

PLz answer this im confused

Bond [772]

5x+12=37
X=5

Hope u do well on the test

8 0

3 years ago

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The area of Sophie‘s herb garden is 1/8 The area of her vegetable garden. The area of her herb garden is 6 square feet. What is

nydimaria [60]

4.8 square feet would be the start of her vegetable garden

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3 years ago

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Mara has 4 oval stickers. She has 3 times as many square

Alekssandra [29.7K]

Answer:12

Step-by-step explanation:the answer is 12 because 4 x 3 equals 12.

4 0

3 years ago

3. A recent tornado in a small town in Southwest New York destroyed and damaged

tester [92]

Answer:

$\text{Area of the Land}=62906.91 ft^2$

Step-by-step explanation:

To determine the area of the land, we first determine the length of the base.

Since it is a isosceles trapezoid,

Length of the base =(228+2x)ft where x is the base of the triangle.

In the Right Triangle,

Perpendicular Height =209 ft

Hypotenuse =221.38 ft

Using <u>Pythagoras Theorem:</u>

$Hypotenuse^2=Opposite^2+Adjacent^2\\221.38^2=209^2+x^2\\x^2=221.38^2-209^2\\x^2=5328.1044\\x=\sqrt{5328.1044} \\x=72.99\: ft$

Therefore, the length of the isosceles' trapezoid base

=228+2(72.99)=373.98ft

Area of a trapezoid

$A=\frac{1}{2}(a+b)h\\$Where a and b are the parallel sides\\h=Perpendicular Height$

a=228ft, b=373.98ft, h=209ft

$Area=\frac{1}{2}(228+373.98)209\\=\frac{1}{2}*601.98*209\\$Area of the Land=62906.91 ft^2$

4 0

3 years ago