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Vadim26 [7]
3 years ago
8

This is a true or false answer please help me**

Mathematics
1 answer:
Nitella [24]3 years ago
3 0

Answer:

5False

6  true

7 true

Step-by-step explanation:

5 Complementary angles add to 90 degrees not 180 degrees

6  40+50 = 90 so they are complementary

7 Supplementary angles add to 180

   145+x = 180

Subtract 145 from each side

145-145 +x = 180-145

   x = 35

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Let x and y represent two real numbers. Write an algebraic expression to denote the quotient obtained when the product of the tw
sertanlavr [38]
(xy)/(x+y) hope this helps
5 0
3 years ago
Determine if the graph is symmetric about the x-axis, the y-axis, or the origin.<br> r = 9 sin 7θ
boyakko [2]

Answer:

The given function symmetric about the y-axis.

Step-by-step explanation:

The given function is

r=9\sin 7\theta                .... (1)

1. Symmetry about the x-axis: If the point (r, θ ) lies on the graph, then the point  (r,-θ ) or (-r, π - θ ) also lies on the graph.

2. Symmetry about the y-axis: If the point (r, θ ) lies on the graph, then the point (r,π - θ ) or (-r, -θ ) also lies on the graph.

3. Symmetry about the origin: If the point (r, θ ) lies on the graph, then the point (-r, θ ) or (r, π + θ ) also lies on the graph.

Put (r, -θ ) in the given function.

r=9\sin 7(-\theta)=-9\sin 7\theta=-r\neq r

Therefore it is not symmetric about x-axis.

Put (-r, -θ ) in the given function.

-r=9\sin 7(-\theta)=-9\sin 7\theta=-r

Therefore it is symmetric about y-axis.

Put (-r,θ ) in the given function.

-r=9\sin 7(\theta)=r\neq -r

Therefore it is not symmetric about the origin.

3 0
3 years ago
PLEASE HELP ME PLS PLS PLS PLS THIS IS MY LAST PROBLEM!!! WILL GIVE BRAINLIEST
jonny [76]

Answer:

If her brother has 40 tickets, the equation will be 3(40)+2=122. jamie will have 122 tickets

If her brother has 50 tickets, the equation will be 3(50)+2=152. jamie will have 152 tickets

If her brother has 60 tickets, the equation will be 3(60)+2= 182. jamie will have 182 tickets.

Step-by-step explanation:

Just trust me

5 0
3 years ago
Please help do today
Allushta [10]
Report this clown who put the first answer he’s trying to get your ip
5 0
3 years ago
7 copies of the sum of 8 fifths and 4
Serggg [28]
So what you would do is 8/5 + 4 x 7 = 26.9
then you round it to 30
7 0
3 years ago
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