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Effectus [21]
3 years ago
11

Solve x^2-2x-3=0 by graphing A. X=-1,3 B. X=-1,3 C. No solution D. X=-1,3

Mathematics
2 answers:
ioda3 years ago
7 0
The answer is 3, -1.
atroni [7]3 years ago
7 0

Answer: x= -1, 3

Step-by-step explanation:

x^2 -2x -3=0

It is asking what is x when y is 0, so find the x-intercepts

to solve by graphing: type equation into desmos or a graphing calculator(<em>Y=, GRAPH</em>)

the points of intersection with the x axis are (-1,0) and (3,0)

so x=-1, 3

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No

Step-by-step explanation:

See attached

8 0
3 years ago
A triangle has side lengths 2.83 m, 4 m, and 2.24 m. The angles measures are 45°, 63°, and 72°.
vagabundo [1.1K]

Answer:

  • D) acute scalene

Step-by-step explanation:

<h3>What are the definitions?</h3>

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7 0
2 years ago
A teacher announce that from the 35 students in the class, 28 passed the first quiz,30 passed the second quiz, and 25 passed bot
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5 0
3 years ago
Clare is paid $90 for 5 hours of work. At thos rate how many seconds does i take for her to earn 25 cents?
natka813 [3]

We are given

Clare is paid $90 for 5 hours of work

Total money paid =$90

total hours of work =5 hours

so, firstly  we will find rate of work

rate of work = ( total money paid)/( total hours of work)

now, we can plug values

and we get

The rate of work is

=\frac{90}{5}

=18 $/ hour

now, we have to find time for amount paid is 25 cents

so, amount paid =25 cents

100 cents =1$

so, amount paid =$ 0.25

Since, the rate is constant

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rate of work = ( total money paid)/( total hours of work)

now, we can plug values

18=\frac{0.25}{T}

now, we can solve for T

T=\frac{0.25}{18} hour

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so, we can change into seconds

1 hour =3600seconds

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T=\frac{0.25}{18}\times 3600 seconds

T=50 seconds......................Answer


6 0
3 years ago
[2.5+ 0.187]x10 please help me
MAVERICK [17]
The answer will turn out to be 26.87
6 0
3 years ago
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