All categories

3 years ago

Help please, its pre-pre algebra

Mathematics

2 answers:

iren [92.7K]3 years ago

6 0

Answer:

The probability that it lands within the red triangle is 8/81.

Lyrx [107]3 years ago

5 0

8/74 l think it that

You might be interested in

I reaalllly neeeed heeellllppppp brainleist to who gives the right answer

timofeeve [1]

Answer:

24+48+10+14+4=100

10+4=14

14/100, or 7/50 chance

Step-by-step explanation:

Experimental probability is the result of an individual experiment, not theoretical probability

8 0

2 years ago

Don't know the claim or how to explain

Marrrta [24]

Is this calculus or something?

7 0

3 years ago

(Will give Brainliest to first person)

slava [35]

Answer:

so u wanna date ;)

Step-by-step explanation:

8 0

3 years ago

I need answers for all of these please and thank you.

Anna35 [415]

I can't do the domain and range but here are the function answers:

1)N

2)N

3)Y

4)N

5)Y

6)Y

7)N

8)N

9)Y

I hope that helped. Sorry I couldn't do the other parts.

8 0

3 years ago

18. A soccer ball is kicked upward from a height of 1.5 feet with an initial vertical velocity of 35 feet per second. Its

NemiM [27]

Answer:

Part a) $-16t^{2}+35t+1.5=0$

Part b)

$a=-16\\b=35\\c=1.5$

Part c) The soccer ball will take 2.23 seconds to reach the ground

Step-by-step explanation:

we have

$h(t)=-16t^{2}+35t+1.5$

where

t is the time the ball has been in the air, in seconds

h(t) is the height, in feet, of the soccer ball

Part a) Write an equation that could be used to determine the time the ball traveled before it hit the ground

we know that

When the ball hit the ground, the value of h(t) is equal to zero

For h(t)=0

$-16t^{2}+35t+1.5=0$

This equation can be used to determine the time the ball traveled before it hit the ground

Part b) Determine the values of a, b, and c

we know that

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-16t^{2}+35t+1.5=0$

$a=-16\\b=35\\c=1.5$

Part c) How long will it take for the soccer ball to reach the ground after it was kicked?

Solve the quadratic equation by the formula

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

we have

$a=-16\\b=35\\c=1.5$

substitute the values

$x=\frac{-35(+/-)\sqrt{35^{2}-4(-16)(1.5)}} {2(-16)}$

$x=\frac{-35(+/-)\sqrt{1,321}} {-32}$

$x_1=\frac{-35(+)\sqrt{1,321}} {-32}=-0.04$ ---> cannot be a solution (is negative)

$x_2=\frac{-35(-)\sqrt{1,321}} {-32}=2.23$

therefore

The soccer ball will take 2.23 seconds to reach the ground

4 0

3 years ago