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Ymorist [56]
3 years ago
14

Solve the system of equations using the linear combination method.

Mathematics
2 answers:
timofeeve [1]3 years ago
8 0
The answer was 5, -2 thx
Fed [463]3 years ago
3 0
(5,-2)
please mark as brainliest 
hope it helps
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What is the word for a rational number whose cube root is a whole number
xxTIMURxx [149]
It's called perfect cubes
8 0
3 years ago
Find the area of a regular pentagon with the apothem of 24.3 cm and a side length of 35.3
steposvetlana [31]

Answer: A=2144\ cm^2

Step-by-step explanation:

For this exercise you need  to use the following formula for calculate the area of regular polygon:

A=\frac{s^2n}{4tan(\frac{180}{n})}

Where is "s" the length of any side, "n" is the number of sides.

Int this case you know that it is regular pentagon, which means that it has five sides. Then you can identify that the values of "n" and "s":

s=35.3cm\\n=5

 Therefore, substituitng values into the formula, you get that the area f the pentagon is:

A=\frac{(35.3cm)^2(5)}{4tan(\frac{180}{5})}\\\\A=2144\ cm^2

8 0
3 years ago
The data below are the monthly average high temperatures for New York City. What is the five-number summary? 40, 40, 48, 61, 72,
yawa3891 [41]

Answer:

B) Sample minimum: 40, Sample maximum: 84

Q1: 45, Median: 63, Q3: 77

Step-by-step explanation:

The first step is to write the temperatures in crescent order:

40, 40, 42, 48, 54, 61, 65, 72, 76, 78, 84, 84,

The sample minimum is the lowest value = 40

The sample maximum is the highest value = 84.

Since there are 12 numbers, the sample median is the average between the 6th and 7th terms:

M = \frac{61+65}{2}\\ M=63

The first quartile is the average between the 3rd and 4th terms:

Q_1 = \frac{42+48}{2}\\ Q_1=45

The third quartile is the average between the 9th and 10th terms:

Q_3 = \frac{76+78}{2}\\ Q_3=77

Therefore, the answer is:

B) Sample minimum: 40, Sample maximum: 84

Q1: 45, Median: 63, Q3: 77

8 0
2 years ago
Is 7x+14 equivalent to 7(1+x)?
morpeh [17]
No that’s equivalent to 7 + 7x
3 0
3 years ago
Read 2 more answers
Please answer this correctly
dexar [7]

Answer:

It’s a 1/2 chance it’s heads.

Step-by-step explanation:

Because there’s two sides

4 0
3 years ago
Read 2 more answers
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