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kari74 [83]
2 years ago
5

Select the correct answer. What are the solutions of this quadratic equation? 25x^2 + 1 = 0

Mathematics
1 answer:
Llana [10]2 years ago
4 0

Answer:

no solution because the square root of a negative number is not a real number d=-100

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Jay played 350 solitaire games he won 154 of those games. What percent of the games did Jay win?
Soloha48 [4]

Answer:

44.044

Step-by-step explanation:

To find the answer we first have to find the value of each percent, to do this we divide 100 by 350, that gets us approximately 0.286. We know that he won 154 of them we then multiply 154 by 0.286 to get the percentage of games he won and we get 44.044.

7 0
3 years ago
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Solve 58 - 10x<20+9x
irina1246 [14]

Answer:

x>2

Step-by-step explanation:

7 0
3 years ago
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can someone help me with this i have autism and my parents aren't home I need some help with this pls will give brainly
svetoff [14.1K]
I can barely see the majority of the questions
i cant do all but to multiply fractions, you just multiply the numerator and the denominator together
so 3 2/3 x 6
change 3 2/3 to an improper fraction
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10 x 1 2/3 is 10/1 x 5/3 = 50/3
3 0
3 years ago
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A physical trainer decides to collect data to see if people are actually weight changing weight during the shelter in place. He
telo118 [61]

Answer:

H0: µd = 0 (claim)

H1: µd ≠ 0

This is a two-tail t-test for µd

Step-by-step explanation:

This is a paired (dependent) sample test, with its hypothesis is written as :

H0: µd = 0

H1: µd ≠ 0

From the equality sign used in the hypothesis declaration, a not equal to ≠ sign in the alternative hypothesis is used for a two tailed t test

The data isn't attached, however bce the test statistic cannot be obtained. However, the test statistic formular for a paired sample is given as :

T = dbar / (Sd/√n)

dbar = mean of the difference ; Sd = standard deviation of the difference.

3 0
3 years ago
Plz answer all corectly will mark brainlest plz answer within 1 hour
denis23 [38]

Answer:

for the first one I got y=-2x-2 the second part i got y=-x-1 or -1x-y-1=0  Correct me if I am wrong

Step-by-step explanation:

Use the slope formula

-4-4 =-8

  /               =-2

1 - -3=4

2. The second part use this formula y-y1=m(x-x1)

     y--4=-1(x-3)

y+4=-x+3

  -4      -4

y+0=-x-1

 y=-x-1      or -1x-y-1=0    I am not sure  

6 0
3 years ago
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