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Sophie [7]
3 years ago
5

What are the solutions to the quadratic equation x^2 – 16 = 0?

Mathematics
1 answer:
Scilla [17]3 years ago
5 0

Answer:

x=4

Step-by-step explanation:

x²-16=0

x²=0+16

x²=16

x=√16

x=4

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Quick algebra 1 assignment for 50 points!
Sati [7]

As per definition

In. a function every domain has an unique range of it

  • f(x)=y

Here

  • f(4)=6
  • f(10)=-2
  • f(13)=7
  • d(15)=8
  • f(10)=11

f(10) has two corresponding values hence it's not a function

8 0
2 years ago
Help please asap!!!!!!!!!
Anton [14]
I hope this helps you:)

8 0
3 years ago
What is the simplified expression for 5 a b + 9 a b minus a b?
aalyn [17]

Answer:

13ab

Step-by-step explanation:

When you add the 5 and 9 it will give you 14 but you still have to subtract the 1ab(there is a 1 in front of variables that don't have a visible number.) So it will be 13 a b.

4 0
3 years ago
PLZ HELP!!!!!!!!!!!!
Ira Lisetskai [31]
P = 2l + 2w
48 = 2(14) + 2w
48 = 28 + 2w

Therefore you could use the equation A.) 2n + 28 = 48, to find the value of N.
6 0
3 years ago
The lengths of pregnancies are normally distributed with a mean of 208 days and a standard deviation of 15 days. A wife claimed
IrinaVladis [17]

Answer:

0%

Step-by-step explanation:

We have the following information:

mean (m) = 208 days

standard deviation (s) = 15 days

We have that the z value would be:

z = (x - m) / sd

replacing we have:

z = (308 - 208) / 15

z = 6.66

However,

P (x> 308) = 1 - (x <308)

P (x> 308) = 1 - (z <6.66)

if we look for this value of z in the table we assume that it is 1, since the table reaches 3 and the value is 1. Therefore:

P (x> 308) = 1 - 1

P (x> 308) = 0

Which means that the probability is 0%, therefore it is a very unusual pregnancy.

5 0
3 years ago
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