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Citrus2011 [14]
3 years ago
9

What did I do wrong help

Mathematics
1 answer:
Savatey [412]3 years ago
7 0

Answer:

The slope of the line is -1

Step-by-step explanation:

I can help you better if you show me your work, but this is my work

2 of the coordinate points are (-4,1) and (-2,-1)

You can use Y2-y1/X2-X1

Substitute the numbers in and your answer will be -1

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Is -12.2 a rational number
alisha [4.7K]

Answer:

Yes!

Step-by-step explanation:

It does not have a repeatinf decimal

8 0
3 years ago
Read 2 more answers
The circumference of a circle is about 50 centimeters (cm). Which is closest to the length of its radius? You may use 3.14 for
Romashka-Z-Leto [24]

Answer:

8 cm

Step-by-step explanation:

The formula of circumference is c= πd------(1)

where C = circumference, π = 3.14 and d = diameter

as we know that diameter is equal to d= 2r

put the diameter formula in eq(1)

we get c= π2r-------(2)

from eq (2) separate r means radius

hence, r= c/(π2)------(3)

put the values in eq(3)

and radius is equal to 8 cm.

5 0
3 years ago
Which equation shows a proportional relationship between x and y?
Effectus [21]

Given:

There exist a proportional relationship between x and y.

To find:

The equation which represents a proportional relationship between x and y.

Solution:

If there exist a proportional relationship between x and y, then

y\propto x

y=kx

where, k is constant of proportionality.

We know that, proportional relationship passes through the origin because (0,0) satisfy y=kx.

For x=0, check which equation has y=0.

In option A, y=-3(0)-2=-2.

In option B, y=9.

In option C, y=4(0)=0.

In option D, y=3(0)+1=1

Only in option C, we have a equation of the form y=kx with 4 as constant of proportionality and it passes through (0,0).

Therefore, the correct option is C.

7 0
3 years ago
(1-sin(x))(1+sin(x))=1/1+tan(x^2)<br> Prove that the statement is an identity
nekit [7.7K]

(1-sin(x))(1+sin(x))=1/1+tan(x^2)

I think  the right side is  tan^2 x    ( the square of tan x)

Left side =  1 - sin^2 x

Right side = 1  / ( 1 + (sin^2 x / cos^2x))

= 1  /    (cos^2x + sin^2x) / cos^2 x

Now sin^2 x + cos^2 x = 1  so

this =  1  /   1 / cos^2x

= cos^2x  = 1 - sin^2 x  = Left side    - Proved

4 0
3 years ago
Factorise <br> 5x - 15.<br> could you please show working out.<br> Thanks
Gennadij [26K]
5(x -3) is the answer
7 0
3 years ago
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