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a_sh-v [17]
3 years ago
5

Please help!!! Thank you

Mathematics
1 answer:
Ksivusya [100]3 years ago
6 0

Answer:

tbh i am not sure, i just need the extra 5 questions but the answer is 2 because i just looked it up

Step-by-step explanation:

You might be interested in
Help please please !!!!!!!
lyudmila [28]
In each case, you can use the second equation to create an expression for y that will substitute into the first equation. Then you can write the result in standard form and use any of several means to find the number of solutions.

System A
  x² + (-x/2)² = 17
  x² = 17/(5/4) = 13.6
  x = ±√13.6 . . . . 2 real solutions

System B
  -6x +5 = x² -7x +10
  x² -x +5 = 0
The discriminant is ...
  D = (-1)²-4(1)(5) = -20 . . . . 0 real solutions

System C
  y = 8x +17 = -2x² +9
  2x² +8x +8 = 0
  2(x+2)² = 0
  x = -2 . . . . 1 real solution
7 0
3 years ago
Help please!!! Thxxxxxx
Alika [10]

Answer:

40 degrees

Step-by-step explanation:

Angle ACO = 80 ( 180 - 100)

Angle CAO = 60 (180 - 120)

Angle AOC = 40 (180 - 80 - 60) (TOTAL DEGREES OF A TRIANGLE IS 180)

8 0
3 years ago
Which function has a vertex at the origin?
dlinn [17]

Answer:

  (d)  f(x) = -x²

Step-by-step explanation:

For the vertex of the quadratic function to be at the origin, both the x-term and the constant must be zero. That is, the function must be of the form ...

  f(x) = a(x -h)² +k . . . . . . . . . . vertex form; vertex at (h, k)

  f(x) = a(x -0)² +0 = ax² . . . . . vertex at the origin, (h, k) = (0, 0)

Of the offered answer choices, the only one with a vertex at the origin is ...

  f(x) = -x² . . . . . a=-1

6 0
2 years ago
I think it’s b or d but which one would be more correct?
ipn [44]

Answer:

A.) b- 9.5 = 26.5

Step-by-step explanation:

because the equation is basically saying that (the og length) - 9.5( the one he cut out) = 26.5 ( which is the remaining wood)

6 0
3 years ago
What’s is the mass of the triangle?
kakasveta [241]

Answer:

3 grams? i dunno

7 0
3 years ago
Read 2 more answers
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