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Bezzdna [24]
3 years ago
13

Find f(–2) for f(x) = 3 • 2x

Mathematics
2 answers:
masha68 [24]3 years ago
5 0

Answer: f(-2)= -12

Step-by-step explanation:

f(-2)= 3*2(-2)

f(-2)= 3*(-4)

f(-2)= -12

Sati [7]3 years ago
4 0

Answer:

actually its 2 over 9 ...aka 2/9

Step-by-step explanation:

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If the number of users tripled every year since 2001, and there were 3 million users in 2005, how many were there in 2004?
otez555 [7]
Divid it by three and you should get it
4 0
3 years ago
Jen Butler has been pricing​ Speed-Pass train fares for a group trip to New York. Three adults and four children must pay $ 132.
laiz [17]
Let a=price of adult ticket
let c=price of a child's ticket
start out by writing the following system of equations:
3a+4c=132
2a+3c=94
then, multiply the first equation by 2, and the second equation by 3 to get the following system of equations:
6a+8c=264
6a+9c=282
subtract the like terms to get the following equation:
-c=-18
divide both sides by -1 to get rid of the negative to get the price of a child's ticket to be $18. to find the price of an adult ticket, pick one of the original equations to substitute the 18 in for c to find a. for example:
2a+3c=94
2a+3(18)=94
2a+54=94
-54 -54
2a=40
2 2
a=20

or if you decide to use the other equation:
3a+4c=132
3a+4(18)=132
3a+72=132
-72 -72
3a=60
3 3
a=20
either way, you still get an adults ticket to be $20 and a child's ticket to be $18.
8 0
3 years ago
Please answer this correctly
olasank [31]

Answer:

12 days

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Solve for < x < 180degrees
Tamiku [17]

Option C: 90° is the value of x.

Explanation:

The given expression is 4+2 \sin x=14-8 \sin x for 0^{\circ} \leq x \leq 180^{\circ}

We need to solve the expression.

Thus, we have,

4+2 \sin x=14-8 \sin x

Subtracting both sides by 4, we have,

2 \sin x=10-8 \sin x

Adding both sides by 8 sin x, we get,

10 \sin x=10

Dividing both sides by 10, we have,

sin \ x=1

Taking sin^{-1} on both sides of the equation, we get,

x=sin^{-1}(1)

x=90^{\circ}

Thus, the value of x is 90°

Hence, Option C is the correct answer.

4 0
2 years ago
Find the length of the radius of a circle with a center at -7+2i and a point on the circle 33+11i
den301095 [7]
Hello : 
let : z = -7+2i    and  z' = <span>33+11i         z - z' = 40 +9 i 
</span>the radius of a circle : |z - z' | = √((40)²+(9)²) =√1681 = 41

6 0
3 years ago
Read 2 more answers
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