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Sunny_sXe [5.5K]
3 years ago
11

Before simplifying, how many terms are there in the expression -2x+8 -6y + 8x + 11?

Mathematics
1 answer:
madam [21]3 years ago
3 0

Answer:

There are 5 terms in the given expression.

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Is 5 km bigger or 5,000 meters
Alexxandr [17]

Answer:

Step-by-step explanation:

1 km = 1000 meters

5 km = 5*1000 = 5000 meters

5 km and 5000 meters both measure the same length.

8 0
2 years ago
Read 2 more answers
Which description is the basis of proof that sin^2 x + cos^2 x= 1 ?
Vika [28.1K]
Answer: Choice B
Equation of a circle with (0,0) as its center and radius = 1

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

Explanation:

Recall that the unit circle is the equation 
x^2 + y^2 = 1
This is a circle with center (h,k) = (0,0) and radius r = 1
It is in the form 
(x-h)^2 + (y-k)^2 = r^2

We can write the first equation mentioned in the form sin^2(t)+cos^2(t) = 1
Using 
x = cos(t)
y = sin(t)
t = angle

The point P(x,y) on the unit circle has an x coordinate of cos(t) and a y coordinate of sin(t). We can see this through drawing a right triangle. 
8 0
3 years ago
If x and Y are positive integers ,is x - y always positive ? Explain
kykrilka [37]
No not always, because x could be a smaller number than y which would make it an negative. If x is bigger than y most likely it will be, but not always.
5 0
3 years ago
Which of the following is most likely the next step in the series? Image is above
Margarita [4]

Answer:

A

Step-by-step explanation:

each picture has points on it first circle has 4 second circle has 3 third circle has 2 next will have 1 point

5 0
3 years ago
Find the area A of polygon CDEFGH with the given vertices. C(0,5), D(2,5), E(2,3), F(3,2), G(-1,2), H(0,3)
enot [183]

Answer:

<em>The area of the polygon CDEFGH is 7</em>

Step-by-step explanation:

<u>Area of a Polygon</u>

The area of a polygon is generally calculated as the sum of the smaller areas that form its full shape, give each partial area has a known shape, like a square, rectangle, triangle, circle, etc.

The six points given in the question are plotted in the image below. They form a polygon whose area can be divided into two smaller shapes:

The area CDHE is a square of length side 2. Area of a square:

A1=L^2

The area HEFG is a trapezoid with bases lengths 4 and 2,  and height 1. Area of a trapezoid:

\displaystyle A2=\frac{b1+b2}{2}h

Calculate both areas:

A1=2^2=4

\displaystyle A2=\frac{2+4}{2}\cdot 1=3

Total Area=4+3=7

The area of the polygon CDEFGH is 7

8 0
3 years ago
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