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kvasek [131]
3 years ago
11

BRAINLIEST! Someone help please!

Mathematics
1 answer:
Papessa [141]3 years ago
3 0

Answer:

60

Step-by-step explanation:

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Just need to know the answer thanks
enyata [817]
A) x=3   x=2
b) x=-8   x=-2

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3 years ago
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KNOWLEDGE CHECK: ALEKS
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Step-by-step explanation:

3 0
3 years ago
I need help with elimination with substitution. The equations are 3x+4y=19 and 3x+6y=33
olganol [36]
For elimination, multiply one whole equation by negative one (-1), then add or subtract according to your signs. After that, it will be a one-step equation.

3x + 4y = 19          3x + 4y = 19             3x + 4y = 19          -2y = -14        y = 7
3x + 6y = 33     -1 (3x + 6y = 33)          -3x - 6y = -33          -14 / -2

Then you would go back and substitute the value of (y) back into either equation and then solve for the remaining variable (x). Finally, use both values to make an ordered pair.

3x + 4y = 19          3x = -9          x = -3          (-3 , 7)
3x + 4(7) = 19       (-9 / 3)
3x + 28 = 19          

Good Luck

4 0
3 years ago
How is a one-degree angle helpful in classifying angles?
Oksana_A [137]
It is helpful by knowing it has at least one acute angle
4 0
3 years ago
A survey given to consumers leaving a supermarket three days before Thanksgiving asked whether turkey would be part of the Thank
timofeeve [1]

Answer:

(0.1392,0.1466)

Step-by-step explanation:

Given that a survey given to consumers leaving a supermarket three days before Thanksgiving asked whether turkey would be part of the Thanksgiving meal

People surveyed = 182

claimed not eating turkey = 26

Sample proportion = \frac{26}{182} \\=0.1429

Std error =\sqrt{\frac{pq}{n} } \\=0.0260

Margin of error = 1.96*SE=0.00378

Confidence interval = (0.1429-0.0037,0.1429+0.0037)\\=(0.1392,0.1466)

5 0
3 years ago
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