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Shalnov [3]
3 years ago
5

Please help me with this

Mathematics
1 answer:
hoa [83]3 years ago
4 0
Y-intercept -is a little higher than 17, best what we can see 17.2
To find slope we can choose 2 points that are on the line.
For example, (180, 10) and (30, 16)
slope = (y2-y1)/(x2-x1)=(16-10)/(30-180)=6/(-150)= - 0.04

y= 
- 0.04x+17.2
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For what percentage of time has life existed on earth (round to the nearest whole number).
abruzzese [7]
This is the concept of arithmetic. To calculate the percentage of time life has existed we proceed as follows;
According to history:
The age of earth is 4.6 billion years
the age of life is as it appeared from unicellular is 3.8 billion years.
thus the percentage of the above will be:
3.8/4.6 x 100
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6 0
3 years ago
Determine if the two triangles are congruent. If they are, state how you know. SAS , ASA, AAS, SSS or HL
Mandarinka [93]

Step-by-step explanation:

1. SAS

2. SSS

3. RHS

4. SAS

5. RHS

6. SAS

7. ASA

8. SAS

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5 0
3 years ago
Please help. Solve the triangle. Round ans to the nearest tenth.
White raven [17]

9514 1404 393

Answer:

  • C = 21°
  • a = 13.3
  • c = 5.4

Step-by-step explanation:

The third angle can be found from the sum of angles in a triangle.

  A + B + C = 180°

  C = 180° -62° -97°

  C = 21°

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The remaining side lengths can be found using the Law of Sines.

  a/sin(A) = b/sin(B)

  a = sin(62°)(15/sin(97°)) ≈ 13.34

Similarly, ...

  c/sin(C) = b/sin(B)

  c = sin(21°)(15/sin(97°)) ≈ 5.42

The remaining side lengths are approximately ...

  a ≈ 13.3

  c ≈ 5.4

4 0
3 years ago
HELP ASAP
maxonik [38]

Answer:

Shape B

Step-by-step explanation:

If you reflect Shape C over X it fits into Shape D. Then reflected over Z it fits into Shape B. Therefore, the final shape would be B.

6 0
3 years ago
A couch and coffee table cost a total of $1167. The cost of the couch is two times the cost of the coffee table. Find the cost o
labwork [276]

Answer:

The couch is $778 and the table is $389

Step-by-step explanation:

7 0
3 years ago
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