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aev [14]
4 years ago
6

What is (-7x + 1) + (-x + 2)

Mathematics
1 answer:
Andrej [43]4 years ago
7 0
(-7x + 1) + (-x + 2)=\\
-7x+1-x+2=\\
-8x+3
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Plsssssssssssssssssssssssssssssssssssssssssssssssssssss help me thx
Semmy [17]

Answer:

I dont understand what u want me to solve tho

7 0
4 years ago
determine weather y varies directly with x. if so, find the constant variation and write the equation
REY [17]

Answer:

Yes, k = 1/3 and y = 1/3x

Step-by-step explanation:

\text{The given line passes through the origin, hence it has equation of the form:}\\y=kx

\text{Therefore y varies directly as x.}The line passes through the point (3,1)}

\text{This implies that,}

1=k(3)\\k=\frac{1}{3}\text{Hence the constant of variation is} ⇒ \frac{1}{3}

The equation would be ⇒ y=\frac{1}{3} x

5 0
2 years ago
Write the equation of the circle centered at (-4,3) with a radius of 7
Harrizon [31]

Answer:

(x + 4)² + (y - 3)² = 49

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

Here (h, k) = (- 4, 3) and r = 7 , thus

(x - (- 4))² + (y - 3)² = 7² , that is

(x + 4)² + (y - 3)² = 49

5 0
3 years ago
Fill in your answers below with proper labels (words written out). Use π=3.14 Diameter = (number) (label in words) Radius = (num
il63 [147K]

Answer:

Step-by-step explanation:

Diameter:

A line passing through the center of the circle touching the circle at two points, is called diameter.

OR

The chord passing through the center is diameter.

It is double of the radius.

so,

Diameter = (2) (Radius of the circle)

Radius:

Diameter divided by 2.

OR half of the diameter is called radius.

So,

Radius = (1/2) (diameter of the circle)

Area of a circle:

Area of a circle =πr^2

Using π=3.14

Area ≈ (3.14) (radius squared)

Circumference of a cricle:

It is equal to 2πr

If π=3.14, then 2π=6.28

Circumference ≈ (6.28) (radius of the circle)

5 0
3 years ago
Quickkk solve by graphing u can use a graph I just need the work
Alika [10]

Answer:

-3x-3y=-24

divide the equation by 3

-x-y=-8

multiply -1

x+y=8

second equation

x+y=8

same equation

so answer is

x+y=8

Step-by-step explanation:

5 0
3 years ago
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