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BaLLatris [955]
3 years ago
15

A line passes through (2, −1)(2, −1) and (4, 5)(4, 5).

Mathematics
1 answer:
olga2289 [7]3 years ago
6 0
Use a Texas instrumental calculator and put all those points into stat edit and then put 4
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5×=15+10y,3×+7y=31 it's for tomorrow pls​
Katarina [22]

Answer:

x = 6.39, y = 1.69 is the solution of the given equation system.

Step-by-step explanation:

Here, the given set of equation is:

5 x = 15 + 10 y  ⇒ 5 x - 10 y = 15   ...... (1)

3 x +7 y = 31   ............. (2)

Now, the coefficient of x in first equation id 5 and in second  is 3.

So, MULTIPLY (1) with 3 and (2) with -5 , we get:

15 x - 30 y = 45

-15 x- 35 y = -155

<u>ADD BOTH EQUATIONS ,</u> we get:

15 x - 30 y  -15 x- 35 y = 45 - 155

or, -65 y  = -110

or, y = 110/65 = 1.69

Put y  = 1.69 in 3 x +7 y = 31 , we get:

3(x) +  7 (1.69) =31

⇒ 3 x = 19.17 or x = 6.39

Hence, x = 6.39, y = 1.69 is the solution of the given equation system

3 0
3 years ago
4x²+ 5x- 6 = 0 <br>O A. -2 <br>O B. -1.5 <br>O C. -1.25 <br>O D. 1.5​
liubo4ka [24]

Answer:

B

Step-by-step explanation:

4 0
2 years ago
Write in index form using powers of 10<br> 1
mojhsa [17]

Answer:

In standard index form a number is written firstly with a sign (if negative) followed ... by a power1 of 10. Powers of 10. Non-negative powers of 10. 100. 1. 101. 10.

Step-by-step explanation:i hope it helps

8 0
3 years ago
A tea shop brewed 8 7/8 pitchers of chamomile tea, of which it sold 2 3/5 pitchers. How many pitchers remained unsold?
Hitman42 [59]

Answer:6 11/40

Step-by-step explanation: You can change your units to decimals or to fractions of equal value.  Decimals are easier for this so 8 7/8= 8.875 and 2 3/5 =2.6.  Then subtract: 8.875-2.6= 6.275   You can now convert back to a fraction by simplifying the .275 into 11 by dividing by 25 and 1000 into 40 by dividing by 25.  6+11/40= 6 11/40 tea left

4 0
3 years ago
Read 2 more answers
What is the area of the Circle? The circle has no radius.
Sergio [31]
No radius = no circle
The radius defines how big a circle is.
0 radius means the circle is only a dot.
So, the area of the circle is 0.

Or technically, algebraically -- 
area = πr²
area = π(0)²
area=π(0)
area = 0
4 0
3 years ago
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