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LenKa [72]
3 years ago
9

Help please - first question

Mathematics
1 answer:
Afina-wow [57]3 years ago
5 0
The answer should be x=60. ABD are an equilateral triangle all the angles must add up to 180. 60*3=180. Also if you have a protractor you can measure the angle C, the 60 degrees part and measure it against A, D and B. Hope this helps.
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Helppppppppppppp i need this homework done by today
lbvjy [14]

Answer: 13. -68

14. 36

15. -36

16. -3

17. 10

18. -4

19. 1310 ft

20. 330 ft

Step-by-step explanation:

13. 34*(-2)=-68

14. -9*(-4)=

-(9*(-4))=

-(-36)=36

15. 12*(-3)=-36

16. -12/4=-3

17. -20/(-2)=

20/2=10

18. 200/(-50)=-4

19. -1640*(-1)-(-330*(-1))=

1640-(-330*(-1))=

1640-330=1310 ft

20. -990*(-1)-(-660*(-1))=

990-(-660*(-1))=

990-660=330 ft

7 0
1 year ago
For each exponential function, a) write a new function, and b) sketch the corresponding graph (on the same coordinate plane) bas
Luda [366]

A reflection over the y-axis means that "x" will change signs.

A dilation causes the graph to stretch (if the factor is greater than 1) or shrink/compress (if the factor is between 0 and 1). Usually, the instructions will say whether it is a vertical or horizontal stretch (or shrink) so you know which variable is affected. Since it was not specified, I am going to assume that this is both a vertical and a horizontal shrink.

Answer: y = \frac{1}{2}(4^{-2x})

7 0
3 years ago
A 20-ft ladder leans against a building so that the angle between the ground and the ladder is 72 degrees. how high does the lad
LiRa [457]
Sin(72°)=x÷20ft.
sin(72°)×20ft.= 19ft 252 inches
the ladder reach 19ft 252 inches tall on the building.
5 0
3 years ago
Read 2 more answers
What decimal is equivalent to each fraction?
Maksim231197 [3]
1/6 = 0.16 with a line over the 6 because it is repeating
3 0
3 years ago
as shown in the diagram below, a building cast a 72 foot shadow on the ground when the angle of elevation of the sun is 40 degre
tester [92]

Answer:

60

Step-by-step explanation:

It is just 60 I did my work lol

6 0
3 years ago
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