All categories

3 years ago

2|3xy-4|+x if x= -2 and y = 4

Mathematics

2 answers:

andre [41]3 years ago

8 0

I got 60 for the answer. When you plug the number in you use parentheses.

sp2606 [1]3 years ago

6 0

Answer:

54.

Step-by-step explanation:

2|3xy-4|+x when x = -2 and y = 4.

= 2|3*-2*4 - 4| + (-2)

= 2|-28| - 2

= 2*28 - 2 ( Note the vertical lines means the absolute value (positive 28)).

= 54.

You might be interested in

What is the value of 5 5 units, as a fraction greater than 1 1?

vfiekz [6]

Answer:

i thnk 10

Step-by-step explanation:sorry

8 0

3 years ago

Read 2 more answers

What is the general equation of a cosine function with an amplitude of 3, a period of 4pi, and a horizontal shift of -pi?

HACTEHA [7]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

A random sample of 200 voters in a town is selected, and 114 are found to support an annexa- tion suit. Find the 96% confidence

EastWind [94]

Answer:

a) 96% CI: $0.51\leq\pi\leq 0.63$

b) If we estimate that the fraction of voters is 0.57, we can claim with 96% confidence that the error is equal or less than 0.06 from the estimated proportion.

Step-by-step explanation:

The proportion of the sample is

$p=\frac{114}{200}=0.57$

The standard deviation of the sample proportion is

$\sigma=\sqrt{\frac{p(1-p)}{n} } =\sqrt{\frac{0.57(1-0.57)}{200} } =\sqrt{\frac{0.2451}{200} } =0.035$

For a 96% CI, the z-value is z=1.751.

Then, the 96% CI can be written as:

$p-z\cdot \sigma\leq\pi\leq p+z\cdot \sigma\\\\0.57-1.751*0.035\leq\pi\leq 0.57+1.751*0.035\\\\0.57-0.06\leq\pi\leq 0.57+0.06\\\\0.51\leq\pi\leq 0.63$

b) If we estimate that the fraction of voters is 0.57, we can claim with 96% confidence that the error is equal or less than 0.06 from the estimated proportion.

6 0

3 years ago

5a + ax - 2b + by Bb

ss7ja [257]

I am not sure but just do the mAth with the numbers so do 5-2 then add the letters it is 3 but im not sure how to put the letters in the order, good luck. :)

6 0

3 years ago

Zahid is paid a set wage of $774.72 for a 36-hour week, plus time-and-a-half for overtime. In one particular week he worked 43 h

Llana [10]

Answer:

$1000.68

Step-by-step explanation:

$\frac{774.72}{36} = 21.52 \: (per \: hour) \\ \frac{21.52}{2} = 10.76 \: \\ 21.52 + 10.76 = 32.28(per \: hour \: of \: over \: time) \\ \\ 43 - 36 = 7(hours \: of \: overtime) \\ \\ 7 \times 32.28 = 225.96 \\ 774.72 + 225.96 = 1000.68$

8 0

2 years ago