4 years ago

Which expression are equivalent to whole -3 times 4/-5

Mathematics

1 answer:

Bumek [7]4 years ago

3 0

Answer:

12/5

Step-by-step explanation:

-3*4/-5=-12/-5=12/5

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BigorU [14]

Wouldn’t it just be a and b

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3 years ago

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Managers at an automobile manufacturing plant would like to estimate the mean completion time of an assembly line operation, . T

Vinil7 [7]

Answer:

The appropriate answer is "144".

Step-by-step explanation:

Given:

Population standard deviation,

$\sigma=10.4$

Margin of error,

$E=1.7$

$CL=95$ %

$CL=1-\alpha$

Or,

$\alpha=1-CL$

$=1-0.95$

$=0.05$

Now,

Critical value,

= $Z_{\frac{\alpha}{2} }$

= $Z_{\frac{0.05}{2} }$

= $1.96$

The minimum sample size will be:

⇒ $n=\frac{Z^2_{\frac{\alpha}{2} }(\sigma)^2}{E^2}$

By putting the values, we get

$=\frac{(1.96)^2(10.4)^2}{(1.7)^2}$

$=\frac{415.5074}{2.89}$

$=143.774$

or,

$=144$

3 0

3 years ago

The 40th term of the number sequence is 119.<br> (b) Work out the 41st term of the number sequence.

dolphi86 [110]

100000fjwjsnfbc kdjdbf

7 0

3 years ago

Solve the equation (x-2)^2/3=9

statuscvo [17]

Answer:

x = 2±3sqrt(3)

Step-by-step explanation:

(x-2)^2/3=9

Multiply each side by 3

(x-2)^2/3 *3=9*3

(x-2)^2=27

Take the square root of each side

sqrt( (x-2)^2)=±sqrt(27)

x-2 = ±3sqrt(3)

Add 2 to each side

x = 2±3sqrt(3)

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3 years ago

Whats the answers please

Rzqust [24]

Answer:

Since the ray bd is bisecting the angle abc, equate 3x + 4 to 7x - 20.

Step-by-step explanation:

3x + 4 = 7x - 20

x = 6

.. Therefore, angle abc = 3x + 4 + 7x - 20

= 18 + 4 + 42 - 20

= 44

4 0

3 years ago