F(x)=x-5
f(4)=x-5
f(4)=4-5
f(4)=-1
Answer:
128
Step-by-step explanation:
x³y²if x = 2 and y = 4
x³*y²
(2*2*2)*(4*4)
(8)*(16)
128
Answer:
6.4
Step-by-step explanation:
9x-23=4x+9
5x=32
x=6.4
If I'm right, brainliest pls?
Answer:
x = 45.6°
Step-by-step explanation:
As we can see, this is a right triangle, so there are known relationships
well to start we have to know the relationship between angles, legs and the hypotenuse
α = x°
a: adjacent
o: opposite = 5
h: hypotenuse = 7
sin α = o/h
cos α = a/h
tan α = o/a
we see that it has (angle, hypotenuse, opposite)
is the sine
sin α = o/h
sin x = 5/7
x = sin^-1 (5/7)
x = 45.58°
if we want to round to the nearest tenth
x = 45.58° = 45.6°
Answer:
10 friends got into the fair
Step-by-step explanation:
If county fair cost is $2.5 per person
$10 to catch a trolley
total cost = $35
Total county fair cost= total cost - trolley cost
= $35 - $10
= $25
So if $25 was spent on county fair, then the number of friends that went is
$25/$2.5 = 10
That is total cost divided by cost per person gives number of persons
