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Orlov [11]
3 years ago
12

Given: ∠D and ∠B are right angles DC || AB Prove: △ADC ≅ △CBA

Mathematics
1 answer:
raketka [301]3 years ago
4 0
Since angle CDA + angle ABC = 180 then DC is Parallel to AB by transversal of parallel line theorem c-pattern for co-interior angles. to help visualize it draw it
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Use the equation of the water level of the river represented by the equation y=-4x + 170, where x represents the
vovangra [49]

Answer:

(0,170)  and (60,-70) and (5, 150)

Step-by-step explanation:

To see if a given point is on the line or not, you just have to enter the x value (first value in the parenthesis) and see if the function returns the correct y value (second number in the parenthesis).

f(x) = -4x + 170

(170,0)  => -4 (170) + 170 = -680 + 170 = 510.  NO, not equal to 0.

(0,170) =>  -4 (0) + 170 = 0 + 170 = 170. YES

(12, 126)  => -4 (12) + 170= -48 + 170= 122. No, not equal to 126.

(50,30)  => -4(50) + 170 = -200 + 170 = 130. No, not equal to 30.

(5, 150)  => -4(5) + 170 = -20 + 170 = 150. YES

(60,-70) => -4(60) + 170 = -240 + 170 = -70.  YES

4 0
3 years ago
Read 2 more answers
Find the voltage for a series circuit where you know the current is 0.5 A and the resistance 25Ω
Lyrx [107]
Formula
V= IR
0.5(25)=
4 0
3 years ago
Solve for x. 5x=-25<br><br> X=-125<br> X=-30<br> X=-20<br> X=-5
Lesechka [4]

Answer:

x= -5

Step-by-step explanation:

Divide each term by

5

and simplify.

3 0
3 years ago
Read 2 more answers
Solve the system of equations using subtraction. <br> 2x - 4y = - 12 <br>2x + y = 13​
alisha [4.7K]
First can you change
2x + y = -12
To have y as the subject

Looks like y = ???
7 0
3 years ago
Say that the economy is in an expansion, causing wages to increase by six percent. If you previously received a monthly salary o
patriot [66]

1457.50 dollars or 1458 dollars rounded


5 0
4 years ago
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