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Tatiana [17]
2 years ago
6

Which of the following equations has both 1 and −3 as solutions?

Mathematics
2 answers:
antiseptic1488 [7]2 years ago
7 0
X2+2x-3=0
factor
(x+3) (X-1)=O
set each factor to 0
x+3=0
x= -3

x-1=0
x=-1   

therefore b is the correct answer

hope this helps
soldi70 [24.7K]2 years ago
5 0
The answer is B)

x2+2x−3=0

Factor left side of equation.

(x−1)(x+3)=0

Set factors equal to 0.

x−1=0 or x+3=0

x=1

or

x=−3

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What percent of 400 is 260
postnew [5]
260/400=0.65
your answer will be 65%
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2 years ago
Find the value of x. <br><br> A. 60<br><br> B. 50 <br><br> C. 40 <br><br> D. 30
garri49 [273]

We can see that two sides of that triangle area equal

so, their corresponding angle will also be equal

now, we know that

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8 0
3 years ago
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A geometric sequence can be used to describe the population of rabbits on a
vlabodo [156]

Answer:

step 1

Find the average growth per year of the populations of rabbits farm A

Over the first 2 years

for t=0

numbers of rabbits=5 (is not exact)

for t=2

numbers of rabbits=40

average=[40-5]/2---------> 17.5

step 2

Find the average growth per year of the populations of rabbits farm B

Over the first 2 years

for t=0

numbers of rabbits=5 (is not exact)

for t=2

numbers of rabbits=30

average=[30-5]/2---------> 12.5

step 3

Compare the average growth per year of the populations of rabbits on both farms

farm A=17.5

farm B=12.5

the average rate of population growth of rabbits in farm A is greater than average rate of population growth of rabbits in farm B by about 5 rabbits per year.

therefore

the answer is the option C)

the average rate of population growth of rabbits in farm A is greater than average rate of population growth of rabbits in farm B by about 6 rabbits per year.

Step-by-step explanation:

6 0
2 years ago
Solve: 5 + n &gt; 2
tiny-mole [99]

\\ \sf\longmapsto 5+n>2

  • We have to find n
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  • sign will be changed

\\ \sf\longmapsto  n>2-5

  • Simplify

\\ \sf\longmapsto n>-3

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2 years ago
Find the Domain and Range (show work)
alexdok [17]

see attached picture for solutions:


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2 years ago
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