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iren [92.7K]
2 years ago
9

(x + 3 ) * (x-2) giúp mình giải bài này với

Mathematics
1 answer:
yarga [219]2 years ago
7 0

Answer:

{x}^{2}  + x - 6 \\

Step-by-step explanation:

(x + 3)(x - 2) \\ x(x - 2) + 3(x - 2) \\  {x}^{2}  - 2x + 3x - 6 \\  {x}^{2}  + x - 6 \\

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Change Y - 4X = 0 to the slope-intercept form of the equation of a line.
Bingel [31]

Answer:

y=4x

Step-by-step explanation:

Add 4x to both sides to get y=mx+b

0 is y-intercept.

4x is the slope.

6 0
3 years ago
This figure consists of a rectangle and a quarter circle. What is the perimeter of this figure? Use 3.14 for pi.
Ghella [55]

The area of the given shape is 220.24 square cm.

Step-by-step explanation:

Step 1;

Area of given shape = Area of the rectangle + Area of the quarter circle.

The given rectangle measures a length of 17 cm and a width of 10 cm. The area of any given rectangle is the multiplication of its length and width. Area of the Rectangle = Length * Width = 17 cm * 10 cm = 170 square cm.

The area of any given circle is π times the square of the radius. The radius of this circle is equal to 8 cm.

Area of the circle = π × r² = 3.14 × 8 × 8 = 200.96 square cm.

200.96 square cm is the area of a full circle with a radius of 8 cm. We divide the area by 4 to convert it into a quarter-circle.

Area of the quarter circle = 200.96 square cm / 4 = 50.24 square cm.

So the quarter circle covers an area of 50.24 square cm.

Step 2;

Area of given shape = Area of the rectangle + Area of the quarter circle

Area of given shape = 170 + 50.24 = 220.24 square cm.

5 0
3 years ago
Find the equation of the line that passes through the points (-4, 2) and (1, -8). Use the form y=Mx+b
GuDViN [60]
ANSWER: Y=-2x-6

EXPLANATION:
(2- -8)/(-4-1)= 10/-5= -2

2=-2(-4) +b
2= 8 + b
b=-6
5 0
3 years ago
Someone please help me will give BRAILIEST!!!!!!
Misha Larkins [42]
The answer would be 1/5
8 0
3 years ago
The graph of a linear function is shown on the grid
monitta

Answer: Choice A

y + 1 = -3(x+2)

=============================

Explanation:

Let's look through the answer choices.

Choices C and D show that the point (2,1) is on the line. But the graph does not show this. So we can rule out choices C and D.

With choice A, the slope is negative and choice B has a positive slope.

The answer must be choice A because the line is going downhill as we move from left to right.

--------------

A common method is to pick two points on the line and compute the slope using the slope formula

m = (y2-y1)/(x2-x1)

Once you know the slope, you would use point slope form

y - y1 = m(x - x1)

4 0
2 years ago
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