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melamori03 [73]
3 years ago
5

Help help help pls pls

Mathematics
1 answer:
olganol [36]3 years ago
4 0

Answer:

see explanation

Step-by-step explanation:

Under a clockwise rotation about the origin of 90°

a point (x, y ) → (- y, x ) , then

(3, 3 ) → (- 3, 3 )

(3, 4 ) → (- 4, 3 )

(5, 3 ) → (- 3, 5 )

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#81 please!!!!!! I’ll rate you!
natta225 [31]

The circumference of a circle with radius r is

C=2\pi r

So, one quarter of a circumference will be

\dfrac{C}{4}=\dfrac{\pi r}{2}

You radius is 6, so we have

\dfrac{C}{4}=\dfrac{6\pi}{2}=3\pi \approx 9.42

6 0
4 years ago
Find the solution of 4t - 2 = 9
Citrus2011 [14]

Answer:

t = 11/4

Step-by-step explanation:

Step 1: Write out equation

4t - 2 = 9

Step 2: Add 2 on both sides

4t = 11

Step 3: Divide both sides by 4

t = 11/4

7 0
3 years ago
Read 2 more answers
PLEASE ANSWER
inna [77]

Answer:1072.3

Step by step:

use the hemisphere formula which is 2/3*pie*r^3

substitute 8 centimeters into the equation.

6 0
3 years ago
Does anyone know how to solve this?
Oksi-84 [34.3K]

Answer: Okay so do 3x7.5 then 3x11.5 then 7.5x11.5 then add it up and you should get  143.25

3 0
2 years ago
As y varies to x and y=10 and x=4 which direct variation is correct
nataly862011 [7]
The first one (y=5/2x) because if you just multiple 4 and 5 first u get 20 and then you divide it by 2
3 0
4 years ago
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