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aksik [14]
3 years ago
13

X^2-5x-9=0 has only 1 solution true or false

Mathematics
2 answers:
PilotLPTM [1.2K]3 years ago
8 0

Answer:

False

Step-by-step explanation:

vitfil [10]3 years ago
6 0
False; it has two solutions
We know this as we find the discriminant (b squared minus 4ac)
If the solution is equal to zero, then it has one solution. If the solution equals to a positive number, then it has two solutions ;)
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A high jumper starts the bar at 48 inches and raises the bar 1/2 inch after each jump.How high will the bar be after the seventh
VARVARA [1.3K]

Answer:

51.5 in , Formula: y=1/2x+48

Step-by-step explanation:

First, create a formula as shown above

Next, plug your number into the formula:

y=1/2(7)+48

Then, simplify your equation by multiplying 1/2 by 7 and getting 3.5, now add 48 and you get 51.5in

Last, check your work by adding 1/2 seven times and you will get the same result

I hope this helps you and if it does please give a thanks (i would eternally appreciate a brainliest trying t level up)

If i am wrong leave a comment

3 0
3 years ago
Which representation illustrates all the possible outcomes of flipping a coin and rolling a number cube with the numbers 1-6 on
RUDIKE [14]
That would be the table at the bottom 
There are 12 possible outcomes    H with 6 possible numbers,  and T with 6 possible numbers.
4 0
3 years ago
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Delicious77 [7]
8/14 , 12/21, 16/28, 20/35
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4 years ago
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faust18 [17]

Answer:the diameter is 7

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What number increased by 11.8% equals 185
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