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devlian [24]
3 years ago
14

2х + 5y = 0 3х – 4у = 23

Mathematics
2 answers:
lawyer [7]3 years ago
7 0
Correct answer:
X = 5
Y = -2
Fantom [35]3 years ago
4 0

Answer:

x=5

y=-2

Step-by-step explanation:

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Political party affiliation is believed to be a very strong indicator of how voters will vote in Presidential Elections. You are
Norma-Jean [14]

Answer:

The best conclusion is that we are 90% that the true population proportion of Republicans that voted for Mitt Romney is between 0.7273 and 0.8106.

Step-by-step explanation:

x% confidence interval:

A confidence interval is built from a sample, has bounds a and b, and has a confidence level of x%. It means that we are x% confident that the population mean is between a and b.

In this question:

The 90% confidence interval for the proportion of Republican voters that had voted for Mitt Romney is (0.7273, 0.8106). The best conclusion is that we are 90% that the true population proportion of Republicans that voted for Mitt Romney is between 0.7273 and 0.8106.

7 0
3 years ago
18) You have 90 minutes to complete at least 18 chemistry and math problems. It takes 5 minutes to complete a chemistry problem
sattari [20]
C. 10 math problems , 10 chemistry problems
4 0
3 years ago
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I need to make I am right so, which is more -9 8/9 or -10 8/9
VLD [36.1K]
-9 8/9 pretty sure hope this helps
4 0
3 years ago
Pls help meh
LekaFEV [45]

Answer:

A≈254.47ft²

Step-by-step explanation:

A=πr2=π·92≈254.469ft²

7 0
3 years ago
Answer the following problem using the SOLVE Method Math Club members are selling Math club members are selling Pi Day T-shirts
kotegsom [21]

The minimum number of T-shirt that they must sell to raise $500 is 67 T-shirts

Let x represent the number of Pi Day T-shirts sold.

They are selling Pi Day T-shirts for $7.50 each, So to raise $500:

7.5x > 500

Dividing through by 7.5:

7.5x / 7.5 > 500 / 7.5

x > 66.7

Hence, the minimum number of T-shirt that they must sell to raise $500 is 67 T-shirts

Find out more at: brainly.com/question/25285332

3 0
2 years ago
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