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Sindrei [870]
3 years ago
8

What are some characteristics of a good math explanation?

Mathematics
2 answers:
MrMuchimi3 years ago
4 0
1. You should understand what about the question and what is the meaning or purpose of it
2. You should find relationships between question and topic
3. You should apply what do you know
ryzh [129]3 years ago
3 0
Visual really helps when learning.
You might be interested in
(-6,8); perpendicular to y = -3/2x -1
UNO [17]

Answer:

y =  \frac{2}{3} x + 12

Step-by-step explanation:

y =  -  \frac{3}{2} x - 1

The gradient of a line is the coefficient of x when the equation of the line is written in the form of y=mx+c.

Thus, gradient of given line=-  \frac{3}{2}.

The product of the gradients of perpendicular lines is -1.

(Gradient of line)(-3/2)= -1

Gradient of line

- 1 \div ( -  \frac{3}{2} ) \\  =  - 1( -  \frac{2}{3} )  \\  =  \frac{2}{3}

Substitute m=\frac{2}{3} into y=mx+c:

y =  \frac{2}{3} x + c

To find the value of c, substitute a pair of coordinates.

When x= -6, y= 8,

8 =  \frac{2}{3} ( - 6) + c \\  \\ 8 =  - 4 + c \\ c = 8 + 4 \\ c = 12

Thus, the equation of the line is y =  \frac{2}{3} x + 12.

7 0
3 years ago
Indicate which property is illustrated in Step 1.
o-na [289]
In step 1 , it's commutative property of addition

hope it helps
4 0
3 years ago
3(8+7) =<br> and how to solve it
fomenos
Answer: 45

Use PEMDAS

first do what in the parentheses

(8+7)

8 + 7 = 15

Now we have

3(15)

This is multiplication

3 x 15 = 45
7 0
2 years ago
Read 2 more answers
What does X equal?<br><br> 5x+10=11
Liula [17]

Answer:

x=1/5

Step-by-step explanation:

you can also use mathpapa it's a calculator that gives you the answer and solves it for you step by step.

5 0
2 years ago
Read 2 more answers
Check out this right triangular prism: Find the surface area of the right triangular prism (above) using its net (below). units2
RoseWind [281]

Answer:

96 squared units

Step-by-step explanation:

Please find attached the diagram used in answering this question

The surface area is equal to the area of each shape

Area of a triangle = Area of a triangle = 1/2 x ( base x height)

1/2 x 2 x 3= 3

there are 4 triangles, area of both triangles = 3x4 = 12

Area of rectangle = length x width

Area of middle rectangle = 6 x 7 = 42

Area of two side rectangles = (3 +3) x 7 = 42

surface area = 42 + 42 + 12 = 96

7 0
3 years ago
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