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Kazeer [188]
3 years ago
12

The lengths of the sides of a triangle are y, y+2, and 8 centimeters. If the perimeter is 34 centimeters, what is the value of y

?
Mathematics
1 answer:
Aleks04 [339]3 years ago
7 0

Answer: 12

Step-by-step explanation:

OKAYOKAY so what I did was 34 - 8 = 26

then 26 - 2= 24

THEN I divided 24 in to 2 equal parts and got 12 so that means y = 12

Hope that helps!!! :}

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If the endpoints of the diameter of a circle are (−6, 6) and (6, −2), what is the standard form equation of the circle?
Varvara68 [4.7K]
1. Find the centre of the circle or the midpoint of the two numbers
(6-6/2}, (-2+6/2)
(0, 2)
2. Find radius using the distance formula
√<span>(6 - 2)² + (-6 - 0)²
</span>√4² + (-6)²
√16 + 36
√52
r = 7.21
3. Plug in
x² + (y - 2)² = 52

So it is option D 99% sure
6 0
3 years ago
Read 2 more answers
Hello! How do I find the surface area of this prism? Thanks!
Studentka2010 [4]
Answer: Choice C) 124 square cm

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

Explanation:

Let's calculate the area of the trapezoid shown
b1 and b2 are the parallel bases; h is the height of the 2D trapezoid
b1 = 2
b2 = 5
h = 1.5

A = h*(b1+b2)/2
A = 1.5*(2+5)/2
A = 1.5*7/2
A = 10.5/2
A = 5.25
The area of one 2D trapezoid is 5.25 sq cm
There are two of these trapezoids that form the base faces of the trapezoidal prism. So the total base area is 2*5.25 = 10.5 sq cm
Keep this value (10.5) in mind. We'll use it later.

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

Now onto the lateral surface area (LSA)
It turns out that the formula for the LSA is
LSA = p*d
where 
p = perimeter of the trapezoid shown
d = depth or height of the 3D trapezoid (I'm not using h as it was used earlier)
This formula works for any polygonal base. It doesn't have to be a trapezoid.

In this case the perimeter is,
p = 1.7+2+2.65+5
p = 11.35

So
LSA = p*d
LSA = 11.35*10
LSA = 113.5

Add this LSA to the base area found earlier
10.5+113.5 = 124

The total surface area is 124 square cm
8 0
3 years ago
There are 2 times as many girls as boys in my class. There are a total of 22 students. How many more boys than girls are in the
mote1985 [20]
11 more boys than girls in your class
8 0
3 years ago
Please help. I will give brainliest to correct answer.
Stells [14]

Answer:

The area of a square with side length of 2 inches is 4 square inches.

The area of a circle with radius 1.2 inches is:

\pi \times (1.2) ^{2}  \\  = 3.14 \times 1.44 \\  = 4.5216 \: square \: inches

That is approximately 4.5 square inches.

Hence, the area of the square (4) is less than {<} that of the circle (4.5)!

3 0
3 years ago
7a - 5b + 4 i really need help with this. They are so confusing and I've been trying to them for like 2 days now.
natali 33 [55]

No solution so 0. You can't simplify or factor in any way.

5 0
2 years ago
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