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skad [1K]
3 years ago
11

Question #1:

Mathematics
1 answer:
Charra [1.4K]3 years ago
6 0

Try this solution (note, this is not the only way):

Q1: if sin(x- 3pi/2)=-sin(3pi/2- x)=--cosx=cosx, then sin(x- 3pi/2)=cosx and sin(x- 3pi/2)=<u>7/25</u>.

Q2: if tan(x)=√3 and x∈(180°;270°), then x=arctan√3+180°=60+180=240°.

If x=240°, then sin(x-210°)=sin30°=<u>0.5</u>.

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The income elasticity of the demand coefficient is for normal goods. Choose one:A. equal to zeroB. less than zero C. greater tha
katovenus [111]

Answer:

D. sometimes less than zero and sometimes greater than zero.

Step-by-step explanation:

The income elasticity of demand is the responsiveness of the increase in the consumers income versus the quantity of goods and services demanded in an economy. we have five types of income elasticity of demand which are namely high elasticity, unitary elasticity, low elasticity and negative elasticity.

in high elasticity of demand when income rises then we see a much bigger increase in the quantity of goods and services demanded therefore positive coefficient.

The unitary elasticity of demand is when the income increases at the same rate the quantity of goods and services demanded rises therefore a coefficient is constant.

the low elasticity of demand is when income increases at a lower rate than the increase in the quantity demanded. positive but low coefficient.

The negative elasticity of demand is when an income increases and the quantity decreases therefore a negative coefficient is seen.

4 0
4 years ago
How many y-intercepts does the circle x^2 + (y - 2)^2 = 16 have?
jekas [21]
Hello : 
<span>y-intercepts when : y = 0 : x² +(0-2)² = 16
x² = 12....(1)
two </span>y-intercepts because the equation (1) has two solutions
8 0
3 years ago
Please answer correctly !!!!!!! Will mark brainliest answer !!!!!!!!!!!
dolphi86 [110]

Answer:

Step-by-step explanation:

The answer is b

4 0
3 years ago
1). what is the area of the rectangle whose length is (x+5) and width (x-5)?​
stich3 [128]

Answer:

x^{2}-25

Step-by-step explanation:

formula for areas of rectangles= width x height

width=x-5

height=x+5

(x-5)(x+5)= x^{2}-5x+5x-25

since the 5x's cancel out each other

              =x^{2}-25 will be the answer

5 0
3 years ago
Help please, will mark brainliest!
inysia [295]

Answer:

A is your answer

Step-by-step explanation: B is wrong because if it was -6 then it would equal -216

7 0
3 years ago
Read 2 more answers
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