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alina1380 [7]
4 years ago
8

PLS HELP WITH ALL 7!!! (SHOW WORK FOR ALL!!!) + LOTS AND LOTS OF POINTS!! (MUST BE CORECCT! & DONT ANSWER FOR POINTS!! If u

don't know how to do this!!

Mathematics
1 answer:
NikAS [45]4 years ago
4 0
So i only got to get 1 & 2
1. 7a+10
2. 5b - 2
sorry the others were hard
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Marsha went out to dinner with four of her
Vanyuwa [196]

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$86

Step-by-step explanation:

You multiply 21.50 times 4

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3 years ago
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The interior angle of a regular polygon is 4 times as large as the exterior angle.
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Answer:

exterior angle = 36°

Step-by-step explanation:

In any polygon

exterior angle + interior angle = 180°

let x be the exterior angle then interior angle is 4x , then

x + 4x = 180

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x = 36

thus exterior angle = 36°

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2 years ago
A compressed air tank carried by scuba divers has a volume of 8.00 L and a pressure of 141 atm at 22.0°C. What is the volume (in
weqwewe [10]

Answer:

Volume of air in the tank =1,044 Liter

Step-by-step explanation:

Given:

Tank volume = 8 Liter

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Temperature = 22°C = 273° + 20° = 295° K

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Computation:

\frac{Pressure\times Tank\ volume}{Tempreture} =\frac{Pressure\times Air\ volume}{Tempreture}\\\\\frac{141\times 8}{295} =\frac{1\times Air\ volume}{273.15}\\\\\frac{1,128}{295} =\frac{Air\ volume}{273.15}\\\\Air\ volume=1,044.45

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8 0
3 years ago
Which statement best explains the relationship between
-Dominant- [34]

Answer: They are not perpendicular because their slopes are  not negative reciprocals.

Step-by-step explanation:

For these two lines to be perpendicular, their slopes have to be negative reciprocals.

Slope of FG.

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= (Y₂ - Y₁) / (X₂ - X₁)

= (-2 - 1) / (0 + 4)

= -3/4

Slope of HJ

J = (0 , 4)

H = (-4, -2)

Slope =  (Y₂ - Y₁) / (X₂ - X₁)

= (-2 - 4) / (-4 -0)

= 6/4

= 3/2

<em>The slopes of these lines are not negative reciprocals so these lines are not perpendicular. </em>

4 0
3 years ago
The table above shows four numeric expressions. Which expression is an integer when it's evaluated?
Gre4nikov [31]

Answer: H

Step-by-step explanation:

9(-3)=-27, which is an integer.

8 0
2 years ago
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