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Makovka662 [10]
3 years ago
10

H(n)=n^2-1; find h(4)

Mathematics
2 answers:
LiRa [457]3 years ago
7 0

Answer:

h(4)=4²-1

=16-1

=15

hope it helps.

shtirl [24]3 years ago
4 0

Answer:

h(4) = 7

Step-by-step explanation:

given ,

h(n) = n^2 ‐ 1

if, h(4) = 4^2 ‐ 1

or, h(4) = 16‐1

or, h(4) = 15

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The product of two consecutive odd integers is 782. What are the integers?
Alex Ar [27]

Call the smaller of the two odds = n

Call the next number in the sequence = n + 2

n*(n +2) = 782           Remove the brackets.

n^2 + 2n = 782          Subract 782 from both sides.

n^2 + 2n - 782 = 0    We are going to have to factor this.

Discussion

This problem can't be done the way it is written. The product of an odd integer with another odd integer is and odd integer. There are no exceptions to this. So you need to give a number that has two factors very near it's square root for this question to work.

For example, you could use 783, (which factors) instead of 782 .

Solve

n^2 + 2n - 783 = 0

(n + 29)(x - 27) = 0

<u>Solution One</u>

n - 27 = 0

n = 27

The two odd consecutive integers are 27 and 29.

<u>Solution Two</u>

n + 29 = 0

n = - 29

The two solution integers are -29 and - 27 Notice that - 29 is smaller than - 27.

7 0
4 years ago
What is the solution to the equation sqrt n= sqrt 3n-3 +1?​
inna [77]
The answer would be n = 1
3 0
4 years ago
Sally went school shopping she had a budget of 10.00 she bought a pen for 1.75 and a paper for 1.33 her change was 6.08 how much
irakobra [83]

Answer:

$0.84

Step-by-step explanation:

1. find total cost of both the pen and paper

  • $1.75 + $1.33 = $3.08

2. find the amount Sally spent

  • $10 - $6.08 = $3.92

3. find cost of ruler

  • $3.92 - $3.08 = $0.84
4 0
4 years ago
I don't understand plz help​
Rasek [7]

Answer:

The equation that represent x, the height of the sign is;

2a = 3x

Step-by-step explanation:

Given that the area of the triangular yield is A square feet

and it has a base length of 3 feet.

also the height is represented by x;

b = 3ft \\ h = x

Recall that the area of a triangle can be written as;

a =  \frac{1}{2} bh

substituting the given;

a =  \frac{1}{2}  \times 3 \times x \\   a =  \frac{3}{2} x \\ 2a = 3x

Therefore, the equation that represent x, the height of the sign is;

2a = 3x

8 0
3 years ago
Read 2 more answers
Which is a factor of 91 multiple choice 7 20 4 or 12
ki77a [65]

Answer:

7

Step-by-step explanation:

Recall that a factor is a number that can divide a number and return a whole number as the quotient.

In this case, 91 / 7 = 13

So 7 is a factor

4 0
3 years ago
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