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Llana [10]
2 years ago
6

Find f(-2) for f(x) = 3.2. O A. 2/1 OB. 36 O C. -36 OD. -12 3/4

Mathematics
2 answers:
Contact [7]2 years ago
7 0
A
f(-2)=3.2^-2
2^-2=1/2^2=1/4
3x1/4 =3/4
valina [46]2 years ago
3 0

Answer:

3/4 (A)

Step-by-step explanation:

replace x with -2 in the function

3 · 2^-2  = 3 · 0.25

3 · 0.25 = 0.75

0.75 = 3/4

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The latter is leaning against the building so that the distance from the ground to the top of the ladder is 9 feet less than the
Rama09 [41]

Complete question :

The latter is leaning against the building so that the distance from the ground to the top of the ladder is 9 feet less than the length of the ladder finally put the ladder in the distance from the bottom of the ladder to the building 15 feet. Find length of the ladder.

Answer:

17

Step-by-step explanation:

From Pythagoras :

Hypotenus = sqrt(opposite² + adjacent²)

From the diagram

l = sqrt((l-9)² + 15²)

l² = (l² - 18x + 81 + 225)

Square both sides

l² = l² - 18x + 306

l² - l² = 306 - 18x

18l = 306

l = 306/18

l = 17

3 0
3 years ago
B(x) is the function that multiplies the input by 100 and then subtracts 5
Tanzania [10]

Answer:

B(x) = 100x - 5

Step-by-step explanation:

Required

Determine the formula of B(x)

B(x) implies that B is a function of x and the input is x

Taking the instructions in the question 1 at a time:

<em>Multiplies the input by 100: </em>100 * x = 100x<em></em>

<em>Subtracts 5 : </em>100x - 5<em></em>

Hence;

B(x) = 100x - 5

4 0
3 years ago
Pls explain how you got the answer also ☺️
Korvikt [17]

Answer: x = 250

Step-by-step explanation:

-17 + x/5 = 33

+17 on each side to get rid of the 17

x/5 = 50

Multiply each side by 5 to cancle out the 5 and isolate the variable

x = 250

5 0
3 years ago
Can you answer this for me Reward: 10 Points.
pogonyaev

Answer:

1 10/12

Step-by-step explanation:

So you would do 2x6+5 which is 17/6 then plus 1/2 x 5/6 which is 5/12 then 17/6 + 5/6 = 22/12 then divide 22 by 12 and get 1 then leftover 10 so 1 10/12.

7 0
3 years ago
NEED HELP WITH THIS QUESTION (IT'S FOR A QUIZ)
Leviafan [203]

Answer:

8 units If the area of the squares are 32 units^2, we have that: Area = Side * Side Side^2 = 32 Side = sqrt(32) = 5.657 units So as the squares are adjacent to two sides of the triangle, we have that the triangle has two sides of 5.657 units As it is a right triangle, we can use the Pythagoras' theorem: c^2 = a^2 + b^2 c^2 = 5.657^2 + 5.657^2 c^2 = 64 c = 8 units

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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