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Alex
3 years ago
5

What is 2+2-1x15+3. Help!!

Mathematics
1 answer:
FrozenT [24]3 years ago
6 0

2 + 2 - 1 \times 15 + 3  =
-8
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Help me plz i need help
Vikentia [17]

Answer:

x=10

Step-by-step explanation:

Because these are vertical angles, they will be congruent.

Ask yourself, "What times 3 is thirty?" or 30÷3=?

Your answer will be 10.

5 0
2 years ago
Solve the system equations and choose the correct ordered pair <br><br> 3x+2y=12<br> 6x+3y=21
Harrizon [31]

Answer:

(2, 3).

Step-by-step explanation:

3x+2y=12

6x+3y=21    Multiply the first equation by 3 and the second by 2:

9x + 6y = 36

12x + 6y = 42        Subtract:

-3x = -6

x = -6/-3 = 2.

Plug x = 2 into the first equation:

3(2) + 2y = 12

2y = 12 - 3(2)

2y = 6

y = 3.

6 0
3 years ago
A large college wishes to determine the average SAT scores for students who apply from New York. They surveyed 105 students from
sweet [91]

Answer:

Statements I and II

Step-by-step explanation:

In Statistics, parameter is any numerical value that characterizes a population while statistics are numerical values that characterizes a sample from a given population.

Statistics are most often used to estimate the population parameters

For example the sample mean is a statistic and the population mean is a paranmeter

The mean SAT score of all students from New York is the parameter.

The mean SAT score of 105 students from New York is called the statistic.

The correct choice is the third option.

5 0
3 years ago
Marco needs to climb up to the roof of his house. He placed his ladder so that the bottom of
8090 [49]

Answer:

12.4 feet

Step-by-step explanation:

A ladder placed against the wall forms a right angle triangle

Hypotenuse ² = opposite ² + adjacent ²

Hypotenuse = 13 feet

Opposite = 4 feet

Adjacent = x

Hypotenuse ² = opposite ² + adjacent ²

13² = 4² + x²

169 = 16 + x²

169 - 16 = x²

153 = x²

Find the square root of both sides

√153 = √x²

12.369316876852 = x

x = 12.4 feet

Adjacent = x = 12.4 feet

6 0
3 years ago
You want to be able to withdraw $30,000 from your account each year for 15 years after you retire. If you expect to retire in 25
crimeas [40]

Answer:

use calculator

Step-by-step explanation:

8 0
2 years ago
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