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zmey [24]
4 years ago
9

Which statement is true? A matrix separates rational and irrational numbers. A matrix separates positive and negative numbers. A

matrix orders numbers from greatest to least. A matrix is a rectangular arrangement of numbers.
Mathematics
1 answer:
Jet001 [13]4 years ago
5 0
I'm pretty sure the answer is "A matrix separates rational and irrational numbers." (Note: I'm not that great with memorizing definitions, but I'm pretty sure.) Hope this helps :)
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1+39(12-44)=x find x
Eduardwww [97]

Answer:

The answer is x=−1247

Step-by-step explanation:

Let's solve your equation step-by-step.

1+39(12−44)=x

Step 1: Simplify both sides of the equation.

1+39(12−44)=x

1+−1248=x

(1+−1248)=x(Combine Like Terms)

−1247=x

−1247=x

Step 2: Flip the equation.

Answer: x=−1247

6 0
3 years ago
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In the USA Today internet poll. 73% of readers indicated that they were satisfied with their lives. 73% of readers who are satis
lara31 [8.8K]

Answer:

73% of readers who are satisfied with their lives would be described as a sample statistic.

Step-by-step explanation:

The right option is D.

A) The population include all the readers of USA today.

B) The sample includes all the readers that answer the poll, wether they answer Yes or No.

C) A population statistic would be the population proportion. It is not mentioned in the text, and it would have to be estimated from the result of the sample.

D) A sample statistic is the proportion of readers that answer affirmatively the poll (p=0.73).

4 0
3 years ago
Paul's car will go 49 kilometers on 7 tanks. Paul wants to know how fuel efficient the car is.
Dovator [93]
49 kms : 7 tanks
divide both sides by 7
equals
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7 0
4 years ago
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Write the equation of the line that has undefined slope and passes through the point(-5,9)
jasenka [17]

Write the equation of the circle with center (3, 2) and radius r = 7. Use the ^ key for the exponents. Write your answer as the example: (x - 4)^2+(y+8)^2=25


6 0
3 years ago
A plane increases its cruising speed from 400mph to 550mph. Work out the percentage speed increase.
Harlamova29_29 [7]
Well, it went from 400 to 550, so the difference is 150.

if we take 400 to be the 100%, what is 150 off of it in percentage?

\bf \begin{array}{ccll}
amount&\%\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
400&100\\
150&p
\end{array}\implies \cfrac{400}{150}=\cfrac{100}{p}\implies p=\cfrac{150\cdot 100}{400}
4 0
4 years ago
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