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zysi [14]
3 years ago
8

The problems in the picture

Mathematics
1 answer:
yarga [219]3 years ago
6 0
Answer: a :)




Explanation:
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Does a point have a location?
aliina [53]

A point in geometry is a location.

It has no size, width, length or depth. A point is shown by a dot. A line is defined as a line of points that extends infinitely in two directions.

5 0
3 years ago
9x-2y=-21 2x+3y=16 Substitution
hjlf
9x-2y=-21 \\\\  9x=-21+2y \\\\ => \boxed{x=\frac{2y-21}{9}} \\\\ 2x+3y=16 \\\\ 2*\frac{2y-21}{9}+3y^{(9}=16^{(9} \\\\ 2(2y-21)+27y=144 \\\\ 4y-42+27y=144 \\\\ 31y=144+42 \\\\ 31y=186 \\\\ \boxed{y=\frac{186}{31}=6} \\\\ x=\frac{2*6-21}{9} \\\\ x=\frac{12-21}{9} \\\\ x=\frac{-9}{9} \\\\ \boxed{x=-1}
3 0
3 years ago
Does 2+2 REALLY equal 5? There has been proof. But is it really correct?
kari74 [83]
I actually posted this a while ago and it got answerd by a smart person so here's what I understood


the error is that it assumes that √(x²)=x
because if x is negative, it becomes positive
that's how the 2nd line is wrong
the 2nd line is the first wrong step

it goes from 4-9/2+9/2
so it goes from 4-4.5+4.5
notice the part under the parenthsees
√((4-4.5)²)
if we evaluate 4-4.5, we get -0.5
but by squaring it we get 0.5

-0.5+4.5=4, yes
but when we square it we get
0.5+4.5=5, that is how it works
5 0
2 years ago
What is the exact circumference of a circle with a radius of 125 m? Use 3.14 to approximate pi
djyliett [7]

Answer:

B. 785 M

Step-by-step explanation:

Circumference = 2*pi*r

C = 2 * pi * 125

C = 250pi   This is the exact answer

Now approximating with pi as 3.14

C = 250 (3.14)

C = 785

4 0
3 years ago
Read 2 more answers
I don’t know what it is<br> 15 ft. x 8 ft=
alexdok [17]

Answer:

The answer is 120 sq. ft.

3 0
2 years ago
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