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AnnyKZ [126]
2 years ago
7

Can somebody help me with this please!!

Mathematics
1 answer:
saul85 [17]2 years ago
8 0

1. -21

2. −39

3.−42

4. -5

5. −3

for the other question u can use calculator :)

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What conic section degenerates into a line?
andrew11 [14]
<h3>Answer: A) parabola</h3>

Some degenerate parabola cases form a single straight line, while other cases form one pair of parallel lines.

A degenerate hyperbola forms two lines that intersect at the vertex of the cone. We can rule out choice B.

A degenerate circle is a single point, so we can rule out choice C.

A degenerate ellipse is also a single point. Any circle is an ellipse (but not the other way around). We can rule out choice D.

5 0
3 years ago
For a certain race, 4 teams were allowed to enter 3 members each. A team earned 9 – n points whenever one of its members finishe
emmasim [6.3K]

Answer:

D. 3 Points

Step-by-step explanation:

Given

Members = 3

Point = 9 - n

1 \leq\ n \leq 8

Required

Determine the least possible score

The least point a member of a team can get is when n = 8.

i.e.

Point = 9 - n

Point = 9- 8

Point = 1

To get the least score, each of the 3 members must have 1 point each.

So:

Total = 3 * 1

Total = 3

5 0
3 years ago
If cosθ=513, what is sinθ?
Roman55 [17]
The only values a cosine can have are from -1 to 1.

6 0
3 years ago
Find the points of intersection of the following function graphs: y=20x−70 and y=70x+30
LekaFEV [45]

Answer:

(-2,-110)

Step-by-step explanation:

First solve for x

20x−70=70x+30

x= -2

Now substitute x for -2

y=20x−70

y=20(-2)-70

y = -110

4 0
3 years ago
Help finding answer
ratelena [41]

the answer for this question is cot theta is equal to 24/ 7

7 0
3 years ago
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