3 years ago

Which relation is a function?

Mathematics

1 answer:

Nadusha1986 [10]3 years ago

8 0

Number A is a function

You might be interested in

Given f(x)=3(2-x)+5 what is the value of f(-5)?

Alexandra [31]

Answer:

Step-by-step explanation:

given f(x)=3(2-x)+5 what is the value of f(-5)?

f(x)=3(2-(-5))+5 x minus a negative is a plus 2 - -5 = 2 +5

= 3(7) + 5

= 21 +5

= 26

4 0

3 years ago

2x^2-4x=t solve for t

Archy [21]

Answer:

$2 {x}^{2} - 4x = t \\ t = 2x(x - 2)$

6 0

3 years ago

Dana has 4 hours to spend training for an upcoming race. She completes her training by running full speed the distance of the ra

Sedaia [141]

Answer:

2hrs 40 minutes

Step-by-step explanation:

The formula for distance is expressed as:

$d=st, s=speed, t=time$

#The time taken to run:

$d=st\\\\t=d/s\\\\t_r=d/8$

#The time taken to walk:

$d=st\\\\t=d/s\\\\t_w=d/2$

#Since the distances are the same:

$d_r=8t_r,d_w=2t_w\\\\8t_r=2t_w\\\\t_r+t_w=4->t_w=4-t_r\\\\\therefore8t_r=2(4-t_r)\\\\8t_r=8-2t_r\\\\t_r=1\frac{1}{3} \hrs\\\\t_w=4-1\frac{1}{3}=2\frac{2}{3}\ hrs$

Hence, Dana spends 2hrs 40 minutes walking back

8 0

3 years ago

Please answer correctly !!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!! And find y also !!!!!!!!!!!!!!!!!

AnnyKZ [126]

Answer:

I think that x equals 14

Step-by-step explanation:

So 136 is a vertical angle to the angle under it, which then makes it a corresponding angle to (9x+10), so 9x+10 should equal 136, so I believe x=14.

4 0

3 years ago

2/3 divided by 1/4 <br> as a fraction! HURRY!!!

a_sh-v [17]

Answer:

2 2/3

Step-by-step explanation:

7 0

3 years ago