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2 years ago

Slove for t : /3t - 6/=12

Mathematics

1 answer:

koban [17]2 years ago

4 0

Answer:

6 or -2

Step-by-step explanation:

|3t - 6| = 12

3t - 6 = 12

3t = 18

t = 6

3t - 6 = -12

3t = -6

t = -2

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Please help me with this

irinina [24]

Answer:

V ≈ 254.5 in³

Step-by-step explanation:

The volume (V) of the cylindrical tube is calculated as

V = πr²h ( r is the radius and h the height ) , then

V = π × 3² × 9 = π × 9 × 9 = 81π ≈ 254.5 in³ ( to 1 dec. place )

5 0

3 years ago

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sergiy2304 [10]

Answer:

Step-by-step explanation:

3 0

3 years ago

Will mark brainlest if correct! pls help

Zanzabum

Answer:

See below.

Step-by-step explanation:

$y_2 = 4x^2$

$x = 1$

$y_2 = 4(1)^2 = 4 = a$

a = 4

$y_3 = 4^x$

$x = 1$

$y_3 = 4^1 = 4 = b$

b = 4

$y_1 = 4x$

$x = 2$

$y_1 = 4(2) = 8 = c$

c = 8

$y_3 = 4^x$

$x = 2$

$y_3 = 4^2 = 16 = d$

d = 16

$y_1 = 4x$

$x = 3$

$y_1 = 4(3) = 12 = e$

e = 12

$y_2 = 4x^2$

$x = 3$

$y_2 = 4(3)^2 = 36 = f$

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$y_3 = 4^x$

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$y_3 = 4^3 = 64 = g$

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8 0

3 years ago

A random sample of 401 student were recent survey regarding their class standing freshmen software junior senior and their major

SOVA2 [1]

the Solution

$Pr(\text{STEM)}=\frac{158}{401}=0.394$ $Pr(\text{Sophomore)}=\frac{87}{401}=0.217$ $Pr(sophomore|Non-stem)=\frac{68}{401}=0.170$ $Pr(\text{sophomore and Non-stem)=}\frac{87}{401}\times\frac{243}{401}=\frac{21141}{160801}=0.1315$

To ascertain whether Sophomore and Non-stem are dependent, we have to test the following:

$\begin{gathered} If\text{ Pr(sophomore or Non-stem) = Pr(sophomore and Non-stem),} \\ \text{then we conclude that both events are Independent,} \\ \text{otherwise, they are dependent.} \end{gathered}$ $\begin{gathered} Pr(\text{sophomore or Non-stem)=Pr(sophomore)+Pr(Non-stem)} \\ -Pr(\text{sophomore and Non-stem)} \end{gathered}$ $Pr(\text{Sophomore or Non-stem)=}\frac{87}{401}+\frac{243}{401}-(\frac{87}{401}\times\frac{234}{401})$ $=\frac{330}{401}-\frac{21141}{160801}=0.82294-0.13147=0.69147$

Cleary, we have that sophomore and non-stem events are dependent events since 0.69147 is not the same as 0.13147.