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Step2247 [10]
2 years ago
6

6. Explain why <1 = <2.

Mathematics
1 answer:
slavikrds [6]2 years ago
8 0

Step-by-step explanation:

Since AC=BE & DE=DC

then measure angle <CAD=<EBD =X

Then< DAB =90-x

And <ABD= 90-X

then measure angle 1= measure angle 2

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-3r-8(8r+8)=-9(-4+9r)​
natulia [17]

Answer:

r= 7.14 (rounded to 2 decimal places)

Step-by-step explanation:

We have to solve this equation for the value of r. We will use distributive property and basic algebra to solve this.

Distributive property is  a(b+c) = ab + ac

Now, the steps of solving are shown below:

-3r-8(8r+8)=-9(-4+9r)\\-3r -64r-64=36-81r\\-67r-64=36-81r\\-67r+81r=36+64\\14r=100\\r=\frac{100}{14}\\r=7.14

Hence, value of r is 7.14 (rounded to 2 decimal places)

8 0
3 years ago
HELP! WILL GIVE BRAINLIEST!! EASY! GIVE LONG DETAILED ANSWER!
OLEGan [10]

Answer:

x² + 2x + y² + 4y = 20

(x² + 2x + 1) - 1 + (y² + 4y + 4) - 4 = 20

(x + 2)² + (y + 4)² - 5 = 20

(x + 2)² + (y + 4)² = 25

Therefore, the center is (-2, -4) and the radius is √25 = 5.

6 0
3 years ago
I NEED HELPPPP ON THIS! <br> 3 questions
goldenfox [79]

Answer:

4. a) y = 3x -2

4. b) y = (2x)/3 -11/3

5. y = -(3x/4) +6

7 0
2 years ago
Where does 0.3 be placed in the Venn Diagram?
Nikolay [14]

Answer:

fondo

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
( please help!! )Find the slope of each line
marysya [2.9K]

Answer:

-2/5

2

Step-by-step explanation:

Slope is rise over run according to my former algebra teacher, but I learned it differently (still correct tho).

The first moves 2 units down so negative 2, and moves 5 units right, so -2/5 since the rise is -2, and run is 5.

The second one moves 2 x-units for every 1 y-unit, so the slope is 2,

5 0
3 years ago
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