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Advocard [28]
3 years ago
12

Pls help I need it ASAP it’s easy tho

Mathematics
1 answer:
Leni [432]3 years ago
5 0

Answer:

Step-by-step explanation:

360/2=180

5x+4x=180

9x=180

x=20

5×20:4×20

100:80

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The scale of a map says that 4 cm represents 5 km.
vaieri [72.5K]

Answer:

16 cm

Step-by-step explanation:

4 cm represents 5 km. There is a total length of 20 km, so you do 20/5=4. Since you have to multiply 5 by 4 to get 20, you also multiply 4cm by 4, and you get 16, or the amount of cm that represents 20 km.

8 0
3 years ago
What is the surface area of the pyramid? 12ft 10ft 10ft
jonny [76]

Answer:

2h x (l+b)

2x10 X (12+10)

20 X 22

44 cm cube is your answer...

3 0
3 years ago
Read 2 more answers
Simplify the following expression.<br><br> 3^0<br><br> simplified form:
Sholpan [36]

Answer:

1

Step-by-step explanation:

Anything to the power of 0 equals to 1

Since this is 3 to the power of 0, it will equal to 1

4 0
3 years ago
Based on Pythagorean identities, which equation is true? sine squared theta minus 1 = cosine squared theta secant squared theta
Naddik [55]

Answer:

Cot^2\theta-Csc^2\theta=-1

Step-by-step explanation:

The only Pythagorean identities are:

1. \ Sin^2\theta+Cos^2\theta=1

2. \ 1+Tan^2\theta=Sec^2\theta

3. \ 1+Cot^2\theta=Csc^2\theta

4. \ Sin^2\theta=1-Cos^2\theta\\  \ \ Cos^2\theta=1-Sin^2\theta

 

Therefore,Cot^2\theta-Csc^2\theta=-1 is correct as it's one of the pythagorean identities.

4 0
3 years ago
Read 2 more answers
5<br> 2a<br> 22 +22+1<br> 1+<br> 22 +4a+3
lara [203]

Answer:6a+75

Step-by-step explanation:

5+2a+22+22+1+1+22+4a+3

add 22,22,1,1,22,5, and 3

2a+4a+75

6a+75

7 0
3 years ago
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