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Lelechka [254]
3 years ago
15

Answer this question please and thank you

Mathematics
1 answer:
ELEN [110]3 years ago
7 0

Answer:

x = -11

-11-3=-14

-14/7=-2

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Find the measure of each interior angle in a regular 18-gon
EastWind [94]

Answer:

A polygon with 18 sides has 18 interior angles. Therefore, to find the measure of one of these angles, divide the sum by 18. Answer: Each angle is 160 degrees.

Step-by-step explanation:

5 0
3 years ago
Question is 15 points
Blababa [14]

sin(x+y)=sin(x)cos(y)-cos(x)sin(y)

also, remember pythagorean rule, sin^2(x)+cos^2(x)=1

given that sin(Θ)=4/5 and cos(x)=-5/13

find sin(x) and cos(Θ)


sin(x)

cos(x)=-5/13

using pythagorean identity

(sin(x))^2+(-5/13)^2=1

sin(x)=+/- 12/13

in the 2nd quadrant, sin is positve so sin(x)=12/13


cos(Θ)

sin(Θ)=4/5

using pythagrean identity

(4/5)^2+(cos(Θ))^2=1

cos(Θ)=+/-3/5

in 1st quadrant, cos is positive

cos(Θ)=3/5


so sin(Θ+x)=sin(Θ)cos(x)+cos(Θ)sin(x)

sin(Θ+x)=(4/5)(-5/13)+(3/5)(12/13)

sin(Θ+x)=16/65



answer is 1st option

7 0
3 years ago
F(x)=x+2/2 what is the value of f(-8)<br><br> A.-4<br> B.-3<br> C.-5<br> D.-6
bonufazy [111]
Answer: Choice B) -3

------------------------------------------------------

Work Shown:

f(x) = (x+2)/2
f(-8) = (-8+2)/2 ... replace every x with -8; use PEMDAS
f(-8) = (-6)/2
f(-8) = -3

4 0
3 years ago
Every year, for the annual school bake sale,
Leno4ka [110]

Answer: Annie will have to make 228 cookies

explanation:

let y represent the total number cookies   that Annie will make.

<h3>y= 342*(2/3)</h3><h3>y=228</h3><h3 /><h3 />

5 0
3 years ago
(-2,3) and (-2,1) what is the answer
Angelina_Jolie [31]
There is not enough info to answer this question.

8 0
3 years ago
Read 2 more answers
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