All categories

2 years ago

Need help for this equation

Mathematics

2 answers:

Afina-wow [57]2 years ago

8 0

Answer:

if you solve the equation it is 8 but the equation is 5-(-3) or 5+3 because two negatives equal a plus

VikaD [51]2 years ago

7 0

Answer:

Step-by-step explanation:

The -3 is just substituting for the x. So if x=-3 you plug in -3 for x in the formula.

So when you plug it in you will have 5- -3. The two negative signs will make a positive. So you will have 5+3 and 5+3=8.

So f(-3)=8

You might be interested in

80 POINTS! WILL GIVE BRAINLY

PSYCHO15rus [73]

Answer:

Step-by-step explanation: No, Gavin is not correct because 284.42 is less than 400 the equation is 200(1+0.09/2)^8 when solved you get 284.42 which is not enough.

Step-by-step explanation:

simplifying this

Ok so do 0.09/2 which is 0.045 then add 1 so you get 200•1.045^8 then you do 1.045^8= 1.422100.... so I did 1.422100•200 to get the final answer of 284.42

8 0

3 years ago

Read 2 more answers

2x + 5 - 6x + 21 = 2(3x - 5) - 4

Svetllana [295]

2x + 5 - 6x + 21 = 2(3x - 5) - 4

distribute

2x+5 -6x +21 = 6x-10 -4

combine like terms

-4x +26 = 6x -14

add 4x to each side

26 = 10x -14

add 14 to each side

40 = 10x

divide by 10

4 =x

8 0

3 years ago

The measure of one side of a square is (8 + 3) inches long. Which pair of expressions both represent the perimeter this square?

tensa zangetsu [6.8K]

Given:

The side of a square a, s+3.

The perimeter of a square is the sum of the four sides of the square. Hence,

$\begin{gathered} P=s+3+s+3+s+3+s+3 \\ =4(s+3) \end{gathered}$

5 0

6 months ago

David was trying to sleep one night but there was too much noise around him? His clock ticked every 5 seconds , a tap was drippi

Monica [59]

Answer:

A) 420 seconds = 7 minutes

B) 8 times

Step-by-step explanation:

A) After how many second would all three things happen together again?

Solution:

His clock ticked every 5 seconds , a tap was dripping every 7 seconds and his pet dog snored every 12 seconds. It all happens simultaneously = 5*7*12=420 seconds

B) How many times would all three things happen together again between midnight and one o'clock

Since all these events happen together after every 420 sec = 7 mins and there are 60 mins between midnight and 1 o'çlock , thus 60/7 = 8 times ....

7 0

3 years ago

You are purchasing books summer reading for $4.50 each. Part A: Your total cost, C, depends on,The input is,and the output is,Pa

Crazy boy [7]

Answer:

Part A) see the explanation

Part B) $C(12)=\$54$