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sweet [91]
3 years ago
7

3 (3x + 2y) - 2 (4x - 2y)

Mathematics
2 answers:
Ivanshal [37]3 years ago
7 0

1x+10y would be your answer

vagabundo [1.1K]3 years ago
5 0

Step-by-step explanation:

9x+6y-8x+4y

9x-8x+6y+4y

x+10y#

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Mr. Salvi makes car payments of $489.95 each month.
SIZIF [17.4K]

Answer:

$5879.4

Step-by-step explanation:

the monthly expense of the car is $489.95

no. of months=12

therefore, the expense= 489.95×12

=$5879.4

6 0
3 years ago
e 400 trials in which the assistant maintained a neutral expression, the driver stopped in 229 out of the 400 trials. Find a 95%
Fittoniya [83]

Answer:

Step-by-step explanation:

n = 400

Proportion p = 229/400= 0.5725

For 95% confidence interval we use Z value as 1.96

Std error = 0.025

margin of error = 1.96*0.025

Confidence interval 95% = 0.5725±Margin of error

= (0.524, 0.621)

b) When smiled x becomes 277

p = 0.6925

Std error = 0.023

Margin of error= 1.96*0.023

Confidence interval = (0.647, 0.738)

Smiling increases the chances of stopping since mean and conidence interval bounds are showing increasing trend.

6 0
3 years ago
Simplify, and list any restrictions on the variable: (2x(x-4)/(4x^2-64)
uysha [10]

Answer:

WHEN SIMPLIFIED THE ANSWER WILL BE:

Step-by-step explanation:

(X)/(2(X+4)

8 0
3 years ago
Is 9.55x10 to the 3rd power greater than less than or equal to 5,900
erastovalidia [21]

Answer:

See below.

Step-by-step explanation:

9.55 * 10^3 = 9550.

So it is greater than 5,900.

5 0
3 years ago
Which rational numbers fall between 2.7 and 2.8 on a number line
Slav-nsk [51]
Some rational numbers are
2.71, 2.72, 2.73, 2.74, 2.75, 2.76, 2.77, 2.78, 2.79
2.711, 2.712 2.713....
2.721, 2.722, 2.723....
2.731....
I think you get the point! Hope this helped!
7 0
3 years ago
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