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dlinn [17]
3 years ago
14

Find the value of y.

Mathematics
1 answer:
bonufazy [111]3 years ago
7 0

Answer:

y = -1

Step-by-step explanation:

It´s an equilateral triangle

then:

2y + 6 = 4

2y = 4 - 6

2y = -2

y = -2/2

y = -1

Check:

2*-1  + 6 = 4

-2 + 6 = 4

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What is the standard form of the equation of a circle that has its center at (-2, -3) and passes through the point (-2, 0)?
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Answer:

(x - h)^2 + (y - k)^2 = 3^2

Step-by-step explanation:

The most general standard form here is

(x - h)^2 + (y - k)^2 = r^2.  Since we know the center is at (-2, -3), we rewrite this equation as

(x + 2)^2 + (y + 3)^2 = r^2.

Note that the center (-2, -3) and the point (-2, 0) lie on the same vertical line, and that the vertical distance from the center to this point is 3.  This is also the radius of the circle.  Thus, the equation of this circle is:

(x - h)^2 + (y - k)^2 = 3^2

5 0
3 years ago
Find f(g(x)) and g(f(x)) of f(x)=x^2-8, g(x)=2x-5
Zina [86]

f(x)=x^2-8\\\\g(x)=2x-5\\\\f(g(x))\to\text{instead of x write the equation of the function g(x)}\\\\f(g(x))=(2x-5)^2-8=(2x)^2-2(2x)(5)+5^2-8\\\\=4x^2-20x+25-8=4x^2-20x+17\\\\\text{used}\ (a-b)^2=a^2-2ab+b^2

g(f(x))\to\text{instead of x write the equation of the function f(x)}\\\\g(f(x))=2(x^2-8)-5=(2)(x^2)+(2)(-8)-5=2x^2-16-5=2x^2-21

5 0
3 years ago
A home improvement store advertises 60 square feet of flooring for $287.00 including an $80.00 installation fee. Write in equati
Andrei [34K]
Hello there,
60 square feet= $287.00 + $80.00
                       = $367
1 square feet= $367 / 60
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Hope this helps :))

~Top
3 0
4 years ago
Read 2 more answers
Please Help! It’s Due TODAY!!
dalvyx [7]

Answer:

4096

256

1024

Step-by-step explanation:

i literally just looked these up sorry

3 0
3 years ago
Name the kind or kinds of symmetry the following figure has: point, line, plane, or none. (select all that apply)
Reil [10]

Answer:

None

Step-by-step explanation:

2 does not have symmetry!

Have grand day~

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3 years ago
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