Answer:
x+7=90 find the value of x
Step-by-step explanation:
Answer:
me no understand plz ask a teacher
Functions are relations that only have one output per input (or graphically passes the vertical line test). You can either go on Desmos and graph this or just look at my explanations below.
1) function, pretty much all polynomials will be a normal function
2) function. This is a rational function, meaning you'll have some weird gaps and lines going to infinity but it's still a function. It's formed by a polynomial divided by another polynomial.
3) function, looks like you can simplify this into a standard rational function.
4) relation, y with an even square root are never going to give you a single solution (due to the nature of a + or - answer; 
= +3 and -3)
Answer:185.87
Step-by-step explanation:
Explanation:
simple interest (SI) can be calculated using the formula
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
∣
∣
∣
2
2
S
I
=
P
R
T
100
2
2
∣
∣
∣
−−−−−−−−−−−−−−−
where P is the Principal, that is amount of money
R is the rate of interest
T is time in years
here P
=
$
2560
,
R
=
5
1
8
=
41
8
and T
=
17
12
years
⇒
S
I
=
2560
×
41
8
×
17
12
100
⇒
S
I
=
2560
×
41
×
17
100
×
8
×
12
⇒
S
I
≈
$
185.87
to nearest cent
Answer:
-5 < x < 9
Step-by-step explanation:
By Hinge theorem,
"If two sides of a triangle are congruent to the two sides of another triangle, and the included angle of one triangle is larger than the included angle of the second, then the 3rd side of triangle one will be larger than the third side of the second"
23 > 21
Therefore, 42° > (3x + 15)°
42° - 15° > 3x
27 > 3x
9 > x
And (3x + 15) > 0
3x > -15
x > -5
Therefore, range for x will be,
-5 < x < 9
