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Nadusha1986 [10]
3 years ago
6

Where is error hellp

Mathematics
2 answers:
Lemur [1.5K]3 years ago
8 0

Answer: Step 2

Step-by-step explanation:

Note: Every positive number has two square roots: a positive square root and a negative square root. Step 2 should have been x+4 = ±11.

xeze [42]3 years ago
3 0

Answer:

Step 2

Step-by-step explanation:

Every positive number has two square roots.

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16 pages/8 hrs

2 pages/ he

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18 pages/9 hrs

9 hours is your answer.
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2 years ago
A number cube is rolled.what is the probability of rolling a number greater than 4​
frosja888 [35]

Answer: 2/6

Step-by-step explanation:

There’s only 2 numbers greater than 4 on a die, so two would be the numerator and the denominator would be the number of possibilities you could roll, which is 1-6.

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2 years ago
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An equation always, sometimes, never has one solution?
DiKsa [7]

Answer: An equation may have more than one solution, or the solution(s) may be complex, rather than real, but it will always have one solution - and sometimes more than one.

Step-by-step explanation:

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2 years ago
Solve the quadratic equations
Alexxx [7]

Answer:

for quadratic equation 1

y^2-10y+21=0

Step-by-step explanation:

y^2-7y-3y+21=0

y(y-7)-3(y-7)=0

(y-7)(y-3)=0

y-7=0,y-3=0

y=7,y=3

y=(3,7)

for quadratic equation 2

16p^2-8p+1=0

16p^2-4p-4p+1=0

4p(4p-1)-1(4p-1)=0

(4p-1)twice=0

4p-1=0,4p-1=0

4p=1

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for quadratic equation 3

x^2-400=0

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x=20

for quadratic equation 4

-16m^2-8m-1=0

multiply the equation by -

16m^2+8m+1=0

16m^2+4m+4m+1=0

4m(4m+1)1(4m+1)=0

4m+1=0 twice

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for quadratic equation 5

-3n^2+75=0

divide both side by -3

-3n^2/-3=-75/-3

n^2=25

n=√25

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6 0
2 years ago
Need help on this question. Will give brainliest
Llana [10]

Answer: C

Step-by-step explanation:

Bcuz when its square it results to something known as the perfect square trinomial. Thats the way i learned it. Ion know if u learned it the same way pero i hope this helps.

3 0
2 years ago
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