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shtirl [24]
3 years ago
12

Please solve the underlined question thank you!

Mathematics
2 answers:
alexgriva [62]3 years ago
6 0

Answer:

Step-by-step explanation:

50x^2 - 72 = 0

2(25x^2 - 36) = 0

2(5x + 6)(5x - 6) = 0

5x + 6 =0; x = -6/5

5x - 6 = 0; x = 6/5

Answer

x = ± 6/5

----------------------

9x^2 + 6x = 10

Divide both sides by 9

x^2 + 2/3 x = 10/9

b/2 = 2/3 * 1/2 = 2/6 = 1/3

As you know (1/3)^2 = 1/9

so add both sides by 1/9

x^2 + 2/3 x + 1/9 = 10/9 + 1/9

(x + 1/3)^2 = 11/9

x + 1/3 = ±√11/9

x = ± √11 / 3  - 1/3

Answer:

x = ± √11 / 3  - 1/3

notsponge [240]3 years ago
5 0

Answer:

Step-by-step explanation:

4

Take out a 2 to begin with.

2(25x^2 - 36)    This is the difference of squares (inside the brackets). Factor.

2*(5x - 6)(5x + 6)

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ValentinkaMS [17]
5/6=1/3+(3/6). 3/6 is the correct answer
5 0
3 years ago
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PLEASE HELP ME I WILL GIVE BRAINLEST
alukav5142 [94]

Answer:

1\frac{2}{3}

Step-by-step explanation:

2\frac{1}{2}  * \frac{2}{3}

\frac{5}{2} *\frac{2}{3}

\frac{10}{6}

\frac{5}{3}

1\frac{2}{3} .....<em>final answer.</em>

5 0
2 years ago
Find the prime factorization of 36
Dmitrij [34]

prime factoring, oddly enough, is simply dividing by primes, anyhow, without much adieu.

36 = 2 * 2 * 3 * 3.


but anyway, prime factoring, is dividing by first 2, till you can't, then 3 till you can't, then 5 till you can't, and so on, and that plucks out all possible factors on any number.

7 0
3 years ago
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Heather is a student in a class that has been asked to conduct a hypothesis test for a population proportion. The null and alter
Rasek [7]

Answer:

Alan = reject H0

Bill = cannot say

Step-by-step explanation:

Given that Heather is a student in a class that has been asked to conduct a hypothesis test for a population proportion.

H0: p = 0.5 \\Ha: p ≠ 0.5

(two tailed test at 5% significance level)

Since she rejects null hypothesis p value should have been less than 0.05

when p value <0.05, it is definitely less than 0.10

So at 1% level of significance also the null hypothesis would be rejected.

So Alan also would get the same result as to reject the H0

But about Bill since Bill uses 0.01, we cannot definitely say that p value is less than or greater than 0.01

All we know is that p is less than 0.05

Hence it is impossible to tell from the information for Bill

5 0
3 years ago
Write the number 63 4 ways
taurus [48]
Sixty-three, 60 + 3, 9 x 7, 63
6 0
3 years ago
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