All categories

3 years ago

A function is defined by f (x) = StartFraction x Over 4 EndFraction. What is f(–8)?

Mathematics

1 answer:

Eva8 [605]3 years ago

6 0

Answer:

f(-8) = -2

Step-by-step explanation:

The equation of the function is given as;

F(x) = x/4

To get F(-8), we simply substitute-8 for x

Thus we have

F(-8) = -8/4 = -2

Benjamin Courtney

2 years ago

Thx. I am taking a quiz so this helps.

You might be interested in

An object at the top of a building with height 110 feet is thrown upward with an initial speed of 23 ft/s. Find its position z(t

alina1380 [7]

Answer:

Step-by-step explanation:

Given

Height of building is $h=110\ ft$

Initial upward velocity $u=23\ ft/s$

height of object is given by

$z(t)=ut+\frac{1}{2}gt^2$

but building is already at a height of 110 ft so z(t) must be given by

$Z(t)=ut+\frac{1}{2}(-g)t^2+110$

$Z(t)=23\times t-\frac{1}{2}\times 9.8\times t^2$

$Z(t)=-16t^2+23t+110$

Time when it hits is given by when Z(t)=0[/tex]

$-16t^2+23t+110=0$

$t=\frac{-23\pm \sqrt{(23)^2-4\times (-16)\times 110}}{2\times (-16)}$

$t=\frac{-23\pm 87}{-32}$

$t=3.43\ s$

6 0

3 years ago

James has $325 in his savings account. He spends $28 a week. How many, w, weeks until he has $157 left in his account?

otez555 [7]

Answer:

6 weeks

Step-by-step explanation:

Total savings= $325

For every week, his total savings decrease by $28.

Let's form an expression for the amount of money left in his account after w weeks.

325 -28w= 157

28w= 325 -157

28w= 168

<em>Divide by 28 on both sides:</em>

w= 168 ÷28

w= 6

Thus, there are 6 weeks until he has $157.

3 0

2 years ago

Correct answers only please!

irina1246 [14]

Answer:

C. 67 mph

Step-by-step explanation:

The speedometer reports speed based on the number of revolutions the tire makes in a given time period. If the motorcycle travels 28/25 times as far on each revolution, its speed is 28/25 times as great.

(28/25)(60 mph) = 67.2 mph ≈ 67 mph

_____

The distance traveled is proportional to the circumference of the tire, which is proportional to the diameter. Hence, actual speed for a given speedometer reading is proportional to the diameter of the tire.

8 0

2 years ago

Read 2 more answers

May I please have help with 2-14 even on this ? I'm horrible at math.

Vilka [71]

2. x = 1/4 ( 0.25)
4. y = 122, x = 42
6. x = 63, y = 8
8. is missing
10. 13.5 cm
12. x = 10.6
14. x = 5.45

6 0

3 years ago

Please help me. make sure to read carefully freinds

IrinaVladis [17]

It would be - 77/4 because 9/14-11/14=- 1/7 then you do 11/4 -/ 1/7 which equals -77/4

3 0

2 years ago

Read 2 more answers