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Masja [62]
4 years ago
14

2x + y if x = 1.8 and y = 3.1 What is the answer

Mathematics
2 answers:
hram777 [196]4 years ago
6 0

Answer:6.7

Step-by-step explanation: 1.8x 2=3.6 then 3.6+3.1= 6.7

Lorico [155]4 years ago
5 0

Answer:

6.7

Step-by-step explanation:

3.6+3.1=6.7

You multiply 1.8 by two for the 2x and add the 3.1 to get your answer

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If I read a whole dictionary would you donate 1$ to see it?
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7 0
3 years ago
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What is the equation of the line that passes through (-3, -1) and has a slope of 2/5? Put your answer in slope-intercept form.
Zanzabum
Hi there!

The general formula of A line in slope-intercept form is the following:
y = mx + n

In this formula m represents the slope of the line. Therefore, we can conclude that m = 2/5.
y =  \frac{2}{5} x + n

We also know that the line passes through the point (-3, -1) and we can therefore substitute this coordinate into the formula of the line.
x = -3 and y = -1

- 1 =  \frac{2}{5}  \times  - 3 + n

Multiply first.
- 1 =  -  1\frac{1}{5}  + n

And finally add 1 1/5 to both sides of the equation.
\frac{1}{5}  = n

We can now switch sides.
n =  \frac{1}{5}

Now we've found our value of n, which we can substitute into the formula of our line. Hence, in slope-intercept form, we find the following:
y =  \frac{2}{5}  x  +  \frac{1}{5}

7 0
4 years ago
I promise its easy ok
Soloha48 [4]

Answer:

1)1/3

2)3

Step-by-step explanation:

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6 0
3 years ago
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Find the length of the other two side of the isosceles right triangle
Valentin [98]

Answer:

The other two sides are 7 units each.

Step-by-step explanation:

The triangle is isosceles.

The sides are in the ratio of

x : x : x \sqrt{2}

The hypotenuse is

7\sqrt{2}=x \sqrt{2}\\\\x = 7

So, the other two sides are 7 units each.

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3 years ago
Write each equation in slope intercept form 9x + 35 = -5y. 2y - 6 = -6x. -11 - 7y = -56​
tamaranim1 [39]

Answer:

y= -9/5x -7

y= -3x +2

y= 45/7

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3 years ago
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