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alex41 [277]
3 years ago
13

Which ordered pair is the solution to the system of equations?

Mathematics
2 answers:
Lelu [443]3 years ago
7 0
The answer is A. (3, -3)
Genrish500 [490]3 years ago
4 0
The answer is A. (3, -3)
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ryzh [129]

Answer:

1. 9

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4. 69

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3 years ago
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What's the digit in the tenths place ​
Darya [45]
Tenths is the digit in the tenths place. Like 0.1 being 1 tenth.
5 0
3 years ago
How are the following three expressions different from each other, if indeed they are? do not just state the value of each but e
Lisa [10]

Answer:

Below.

Step-by-step explanation:

Number is different to the other 2. Its value is +4 because negative 2 squared = + 4.

The other 2 have negative values and -2 = -(2) so they have the same value, -4.

8 0
3 years ago
A professor using an open source introductory statistics book predicts that 10% of the students will purchase a hard copy of the
Likurg_2 [28]

Answer: The professor was not accurate with his hypothesis.

Null hypothesis: P1 = 12.5%, P2 = 42.5%, P3 = 45%

The alternate hypothesis: At least one proportion of the student will differ from the others.

Step-by-step explanation: To check if the professors hypothesis were inaccurate.

What percentage of student bought a hard copy of the book.

(25 ÷ 200) × 100 = 12.5%

What percentage of the student printed it from the web.

(85 ÷ 200) × 100 = 42.5%

What percentage of the students read it online.

(90 ÷ 200) × 100 = 45%

This means that the professor was not accurate with his hypothesis. Because the proportion of student in his hypothesis was not the same in the actual.

Therefore; the null hypothesis are

P1 = 12.5%, P2 = 42.5%, P3 = 45%

The alternative hypothesis will state that at least one of the proportion will be different from the others.

5 0
3 years ago
Please help <br> The factors of -18 are listed in the table …
pav-90 [236]

Answer:

x= -2 and 9

Step-by-step explanation:

x ^{2}  + 7x - 18

factorize it

- 18 = 2×3×3

TO MAKE IT 7

3×3=9

9-2 =7

x ^{2}  + 9x - 2x - 18x = 0

x(x+9)-2(x+9)=0

x-2=0 ,x+9=0

x =2 x=-9

8 0
2 years ago
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