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Leno4ka [110]
4 years ago
12

Ac=_____ what is AC?

Mathematics
2 answers:
choli [55]4 years ago
7 0

Answer:

3.4 + 3.4 = 6.8

Step-by-step explanation:

Review your triangle and geometry. Since the triangles are both similar, they would have the same side.. etc.

Tomtit [17]4 years ago
3 0
AC=6.8m

BD is a perpendicular bisector to AC. Because of this AN and NC are created. AN is given as 3.4m. Because AC is bisected it is also split exactly on half. 3.4m is one half so you would multiply 3.4 by two to get the whole measurement of AC. 3.4*2=6.8
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Which expression is equivalent to x2-16 ?
kirill [66]

Answer:

Step-by-step explanation:

You should indicate which type of expression are you expecting.

But intuitively, x^2 + 16 = x^4 + 4^2 = (x+4)^2 - 8x

5 0
3 years ago
Help on 9 & 10 please!
Mandarinka [93]

Step-by-step explanation:

9. x and z are equal. y+z=90

   148-x=180 x+148 are supplementary

   -148    -148 Subtract 148 from both sides to isolate x

         x=32 degrees

         z=32 degrees b/c x and z are equal

 y+z=90 y and z are complementary

 y+(32)=90 Substitute 32 in for z

   -32     -32

 y         =58 degrees

10. (4x-25)=(2x+7) B/c of the bisection, the two angles are equal.

     4x-25  =2x+7 Remove parenthesis

      -2x       -2x Subtract 2x from both sides

     2x-25  =    +7

          +25       +25 Add 25 to both sides to isolate x

    2x         =     32

     /2                 /2 Divide both sides by 2 to isolate x

     x            =     16

 (4(16)-25)+(2(16)+7)=78 degrees Substitute 16 into the equation, this time adding the values instead of setting them equal to get the angle measure requested.

11. (6x-47)+(x+4)=90 Angles that are complementary add up to 90 degrees

    7x-43            =90 Add like terms

         +43             +43 Add 43 to both sides to isolate x

   7x                    =133

   /7                       /7 Divide both sides by 7 to isolate x

     x                     =19

((19)+4)=23 degrees Substitute x into the angle measure requested

12. 180=2x-9+x Use the words to help you determine what each value is.

     180=3x-9 Add like terms

     +9        +9 Add 9 to both sides to isolate x

     189=3x

     /3     /3 Divide both sides by 3 to isolate x

     63=x

 2(63)-9=177 degrees Substitute 63 into x to find the requested angle measure.

3 0
3 years ago
At which point do the two equations
Lena [83]

The lines intersect at two places.

They intersect at approximately (-2,8) and (2,3)

Looking at the choices they would be at (1.8,3.2) and (-2.8,7.8)

The answer is D. Both A and B.

4 0
3 years ago
PLZZZ HELP IM IN A RUSH
cupoosta [38]
1/3 - 2/9 - 1/3

= -2/9
(Decimal: -0.222222)
4 0
3 years ago
Please help me!!! I have more points for this!
olga2289 [7]

Answer:

Thanks for the points :)>

Step-by-step explanation: yeahhh shawtyyy

7 0
3 years ago
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