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Nadusha1986 [10]
3 years ago
15

Plzzz help me with this ​

Mathematics
1 answer:
Illusion [34]3 years ago
5 0
Ok, to prove the two triangles, we need reasoning:

1) the side AC is common (as you can see, both triangles share the side AC)

2) angle DCA is equal to angle BAC (this is due to alternate angles)

3) angle BCA is equal to angle DA (again, this is due to alternate angles)
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Can i please have help with this question brainliest for corecct answer
In-s [12.5K]

answer is D

graduent should be m¹×m²=-1

and should be the inverse of the other

3 0
2 years ago
What is the equation in point slope form of the line that passes through the point (−2, 4) and has a slope of 5?
vodomira [7]

Answer:

y-4=5(x+2)

Step-by-step explanation:

We want to find the equation in point-slope form of the line that passes through the point (-2,4) and has slope  m=5.

The point-slope form is given by the formula;

y-y_1=m(x-x_1)


where m=5 is the slope and

(x_1,y_1)=(-2,4) is a point on the line,


We substitute the values into the formula to obtain;

The required equation is  y-4=5(x+2)


7 0
3 years ago
Evaluate <br> g(4): g(x)=8x^2+9x-7<br><br> A. 121<br> B. 135<br> C. 154<br> D. 157
inn [45]
The answer is:  [D]:  " 157" .
________________________________________________________
Explanation:
______________________________________________________

 g(x) = 8x² + 9x − 7 ;

 g(4) = 8(4²) + 9(4) <span>− 7 ;
</span>
        = 8(4*4) + 36 <span>− 7 ;
</span>
        = 8(16) + 36 <span>− 7 ;
</span>
        = 128 + 36 <span>− 7 ;
</span>
        = 164 − 7 ;

       =  <span>157 .</span>
_______________________________________________________
The answer is:  [D]:  " 157" .
_______________________________________________________
7 0
3 years ago
Seventy concert tickets were sold for $550. each adult ticket cost $9 and each childrens ticket cost $5. find the number of adul
PilotLPTM [1.2K]

Answer:

Total tickets = 70

Total cost = $550

Adult's ticket = $9

Child's ticket = $5

Difference = 9 - 5 = $4

Assume all 70 are child's tickets

5 x 70 = 350

But the total cost was 550

550 - 350 = $200

The $200 must have come from Adult's tickets, which has a difference of $4.

200 ÷ 4 = 50

So there are 50 adult's tickets.

70 - 50 = 20

And there are 20 child's tickets.

Hope this helps - Itz.Jordan

5 0
2 years ago
Find the unknown length in the right triangle 27cm and 13 cm
Phoenix [80]

use pythagoras:

{c}^{2}  = \:   {b}^{2}  -  {a}^{2}

c^2 = (27)^2 - (13)^2

c^2 = 560

c = 23.6643....cm

3 0
3 years ago
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