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Mkey [24]
3 years ago
13

-2x+5 < 3Someone explain it and solve pls​

Mathematics
1 answer:
Artist 52 [7]3 years ago
6 0

Answer:

-2x+5<3

-2x<5-3

-2x<2

-2x>2

Divide de both sides by -2

x>-1

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Tom throws a ball into the air. The ball travels on a parabolic path represented by the equation , where represents the height o
tigry1 [53]

Answer:

2.5 second

Step-by-step explanation:

The equation is missing in the question.

The equation is,  h=-8t^2+40t  , where 'h' is the height and 't' is time measured in second.

Now we know to reach its maximum height, h in t seconds, the derivative of h with respect to time t is given by :

\frac{dh}{dt} =0

Now the differentiating the equation with respect to time t, we get

\frac{dh}{dt}=\frac{d}{dt}(-8t^2+40t)

\frac{dh}{dt}=-16t+40

For maximum height,  \frac{dh}{dt} =0

So, -16t+40=0

 \Rightarrow 16t=40

\Rightarrow t=\frac{40}{16}

\Rightarrrow t = 2.5

Therefore, the ball takes 2.5 seconds time to reach the maximum height.

7 0
3 years ago
A local hamburger shop sold a combined total of 649 hamburgers and cheeseburgers on Friday. There were 51 fewer cheeseburgers so
katrin2010 [14]

Answer: 350

Step-by-step explanation:

Let the cheeseburger be represented by a.

Since there were 51 fewer cheeseburgers sold than hamburgers. This means that hamburgers will be:

= a + 51.

Since the local hamburger shop sold a combined total of 649 hamburgers and cheeseburgers. This will be:

a + a + 51 = 649

2a + 51 = 649

2a = 649 - 51

2a = 598

a = 598/2

a = 299

299 cheeseburger were sold

Therefore, the number of hamburger sold will be:

= 649 - 299

= 350

7 0
2 years ago
In a survey of 1090 ​investors, it was determined that 690 invested in​ stocks, 575 in bonds and 300 in both stocks and bonds.
solniwko [45]

something is wrong with your question bc 690 plus 575 equals to 1265

4 0
2 years ago
Read 2 more answers
The sum of two numbers is 75. The second number is 3
mihalych1998 [28]

Answer:

26 and 49.

Step-by-step explanation:

8 0
3 years ago
What is the answer for 4x y = -10
CaHeK987 [17]

4 times y = -10

-10/4 = -2.5

y = -2.5 

8 0
3 years ago
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