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3241004551 [841]
3 years ago
7

Find f(5) given that f(x)= x^2_1

Mathematics
1 answer:
erma4kov [3.2K]3 years ago
8 0

Answer:

f(x) = x {}^{2}  - 1 \\ f(5) = (5) {}^{2}  - 1 \\  =  > 25 - 1 \\  =  > 24

hope helpful <3

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Write an equation of the line that is perpendicular to 3x + 9y = 7 and passes through the point (6, 4).
musickatia [10]
Hi there!

The equation of any line perpendicular to
ax + by = c
is
bx - ay = c

Therefore, in this situation, the formula of the line would be
9x - 3y = c

Given that the line passes through the point (6, 4) we get
9 \times 6 - 3 \times 4 = c
54 - 12 = c
c = 44

Therefore, the equation of the line that is perpendicular to 3x + 9y = 7 and passes through (6, 4) is
9x - 3y = 44
7 0
3 years ago
Read 2 more answers
Round 2,042,822 to the nearest 1,000
andre [41]
To round a number to the nearest thousands, we will check the number is the hundreds position:
if the number in the hundreds position is smaller than 5, then we will convert all numbers after the thousands position to zeroes
if the number in the thousands position is equal to or greater than 5, we will add one to the thousands and convert all digits after it to zeroes.

The number we have is <span>2,042,822
Applying the above concept we will find that:
the number in the hundreds position is 8 which is greater than 5
Therefore:
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7 0
3 years ago
Please Help Me ASAP.
timama [110]

Answer:

Step-by-step explanation:

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4 0
3 years ago
The ratio of destroyers to battleships in the navy is 20:15. If the total number of boats is 105, how many battleships are there
Elina [12.6K]

Answer:

45

Step-by-step explanation:

20:15 the ratio can be turned to a fraction

20/15

simplify

4/3

so now add the numerator and the denominator and get 7

then do 105/7=15

and then you do

4x15=60 (Destroyers)

3x15=45 (Battleships)

45 is your answer

7 0
3 years ago
Slope (-10, -2) (15, 8)
Nana76 [90]

Answer:

  • 2/5 or 0.4

Step-by-step explanation:

<u>Slope formula</u>

  • m = (y2 - y1)/(x2 - x1)

<u>Given points</u>

  • (-10, -2) and (15, 8)

<u>Slope is</u>

  • m = (8 - (-2))/(15 - (-10))
  • m = 10/25
  • m= 2/5 or 0.4
6 0
3 years ago
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