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Allisa [31]
3 years ago
5

Which equation fits?

Mathematics
2 answers:
Anuta_ua [19.1K]3 years ago
7 0
The equation that fits is y=3x+1
guapka [62]3 years ago
5 0

Hello!

Let's use the point (0,1) in each equation and see which one fits.

1=0+1

1= undefined+1

1=0+3

As you can see, the only correct equation is the first one.

Therefore, our answer is A) y=3x+1.

I hope this helps!

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Two Points P and Q, 25 meters apart, are on the same Straight line, the same side and the same ground Level as the foot of the t
Lelechka [254]

Answer:

b

Step-by-step explanation:

7 0
2 years ago
In Chicago, IL, the average wind speed is 10.4 miles per hour. In Great Falls, MT, the average wind speed is 13.1 miles per hour
Fed [463]
I think Great Falls' average wind speed is greater than Chicago's by 2.7 miles
8 0
3 years ago
The following equation describes a circle.
Simora [160]

Answer:

Center = (5, -2)  and radius = √33

Step-by-step explanation:

The equation of a circle is given by the formula;

(x-a)² + (y-b)² = r² ; where (a,b) is the center of the circle and r is the radius of the circle.

In this case;

2x² - 20x + 2y² + 8y =40 ;

Dividing both sides of the equation by 2 we get;

x² - 10x + y² + 4y = 20

we can then use the completing the square on both x and y terms.

x² - 10x + y² + 4y = 20

x² + 2(-5)x + 25 + y² + 2(2) y + 4 = 20 +9 + 4

In standard form we get;

(x-5)² + (y+2)² = 33

Therefore;

Center = (5, -2)  and radius = √33

3 0
3 years ago
Write an equation in slope intercept form for the line with slope -4 and y intercept 1
aalyn [17]

Answer:

y = -4x + 1

Step-by-step explanation:

you said, slope of -4, therefore it's -4x and you also said y intercept of 1, therefore it's a positive 1 : +1

combine them together: y = -4x +1

If you have any more questions, please let me know and I am glad to answer any question that are related to math (algebra 1 and geometry). Let me know if you have any more questions and don't forget to click that friend button!

8 0
3 years ago
the first group of students consists of 10 and their average age was 13 years old the next group consisted of 30 students and th
Kazeer [188]

Answer: The average was 9 years old find the average age of both groups is 10 years old.

Step-by-step explanation:

Formula foe average : \text{Average} =\dfrac{\text{Sum of all observations}}{\text{Number of observations}}

Given : The first group of students consists of 10 and their average age was 13 years old.

i.e. 13=\dfrac{\text{Sum of ages of students of first group}}{10}\\\\\Rightarrow\ \text{Sum of ages of students of first group}=13\times10=130      (1)

The next group consisted of 30 students and their average was 9 years old.

i.e. 9=\dfrac{\text{Sum of ages of students of next group}}{30}\\\\\Rightarrow\ \text{Sum of ages of students of nextgroup}=9\times30=270      (2)

Then from (1) and (2) , the sum of both groups (first group and next group )students = 130+270 =400

Combined students of both groups (first and next group )= 10+30=40

Now , the average of both groups =\dfrac{\text{Sum of combined students}}{\text{combined students}}

=\dfrac{400}{40}=10

Hence, the average was 9 years old find the average age of both groups is 10 years old.

4 0
3 years ago
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