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m_a_m_a [10]
2 years ago
12

Please help me this is really confusing here's the question

Mathematics
1 answer:
LuckyWell [14K]2 years ago
3 0

Answer:

I'm pretty sure its D. 11.5

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a wire of length 200 cm is cut into two parts and each part is bent to form a square.If the area of the larger square is 9 times
diamong [38]

<em>Answer:</em>

<em>The perimeter of the larger square is 150cm.</em>

<em>Step-by-step explanation:</em>

<em>First of all, let one part of it be "x"</em>

<em>and the other part of it "200-x"</em>

<em>Now to solve this :</em>

<em>The area of the square = L^2</em>

<em>The area of one part of the square = x^2</em>

<em>The area of the other part of the square = (200-x)^2</em>

<em>9x^2= (200-x)^2\\9x^2=40000-400x+x^2</em>

<em></em>

<em>Now, add, -4x^2 to both the sides :</em>

<em>9x^2-9x^2=40000-400x+x^2-9x^2\\-1(8x^2+400x-40000)=0</em>

<em />

<em>Now, take out the "8" which is common :</em>

<em>-8(x^2+50x-5000)=0</em>

<em></em>

<em>Now, divide it by -8 :</em>

<em>x^2+100x-50x-5000=0\\x(x+100)-50(x+100)=0\\(x+100)(x-50)=0\\</em>

<em>x=-100 or 50</em>

<em />

<em>So, now we know that :</em>

<em>One of the part is = 50cm</em>

<em>And the other part is = 150cm</em>

<em />

<em>Thus the perimeter of the larger square is = 150cm</em>

3 0
3 years ago
Whats 2.5/6 = h/9 what does h equal to
Liula [17]

Answer:

h =2.6

Step-by-step explanation:

2.5/6

2.5+6

=

2.6

4 0
3 years ago
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How to do logarithmic equations
kaheart [24]

Answer:To solve a logarithmic equation, rewrite the equation in exponential form and solve for the variable. (it’s kind of the similar to regular equation)

Step-by-step explanation:

8 0
2 years ago
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Triangle JKM with side j across from angle J, side k across from angle K, and side m across from angle M
choli [55]
The answer of this question is 883 in
5 0
2 years ago
There are 3/4 as many boys as girls in class of fifth-grade. If there are 35 students in class, how many are girls?
Anuta_ua [19.1K]

Answer:

girls = 20

boys = 15

Step-by-step explanation:

boys = 3/4 x  = .75x

girls = x

x + .75x = 35

1.75x = 35

x = 35/1.75

x = 20

girls = 20

boys = 3/4 * 20 = 15

boys = 15

4 0
2 years ago
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