Answer:
Step-by-step explanation:
(x,y) or
(x,f(x))
so just plug the first value in and see if yo get the 2nd value
A. when x=-2, then is f(x)=48?
remember, x^-m=1/(x^m)
3(1/4)^-2=3/((1/4)^2)=3/(1/16)=3*16=48
true
B. x^0=1
so 3(1/4)^0=3(1)=3
true
C. when x=2
3(1/4)^2, 3(1/16), 3/16
true
D. 12
das is obviously false but anyway
3(1/4)^12=3(1/big number)=3/big number=small number but not zero
answer is A,B,C
The quadratic formula is:
and
Let's identify our a, b, and c values:
a: -1
b: 1
c: 12
Plug in the values for a, b, and c into the equation. Let's do the first equation:
Simplify everything in the radical:
Simplify the radical:
Combine like terms:
Simplify:
This is one solution, now, let's solve for the other equation:
Since when simplified, everything is the same except the subtraction sign, we can skip the simplification again and change the sign to subtraction:
Combine like terms:
Simplify:
Your final answers are:
Answer:
How to calculate and derive the formula for the Chord Length of a circle. The formula for the chord length is: 2rsin(theta/2) where r is the radius of the circle and theta is the angle from the centre of the circle to the two points of the chord.
Answer:
13. $55.50 - $29.25 = $26.25
$26.25 ÷ 5 = $5.25
C. 29.25 + 5t = 55.5; t = $5.25
11. $500 - $119.75 = $380.25
$380.25 ÷ $2.25 = 169
C. 119.75 + 2.25p < 500; p < 169
16. 8 + 7 + 3 + 42 = 60
42/60 = 0.7
540 × 0.7 = 378
B. About 380 students take the bus to school
17. 25% increase = 125% = 1.25
280 × 1.25 = 350
350 × 9 = 3,150
3,150 - 3,114 = 36
A. He will break the record by 36 yards
19. 25,000 - 17,500 = 7,500
7,500 ÷ 2,500 = 3
C. Greater than 3
22. 17.55 ÷ 5 = 3.51
A. 3.51 feet
23. A negative number divided by a positive number is still negative, so fractions will be equivalent regardless of the negative symbol being with the numerator or denominator.
B. 9/-16
