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stira [4]
3 years ago
14

What’s the length of the new fence?

Mathematics
1 answer:
natulia [17]3 years ago
7 0
We apply the Pythagorean theorem twice and obtain:
 12 ^ 2 = x ^ 2 + (15-d) ^ 2
 9 ^ 2 = x ^ 2 + d ^ 2
 We observe that it is a system of two equations with two unknowns whose solutions are:
 (x, d) = (-36/5, 27/5)
 (x, d) = (36/5, 27/5)
 We ignore the negative solution, therefore, the solution is:
 (x, d) = (36/5, 27/5)
 Answer:
 
The length of the new fence is:
 
x = 36/5 meters
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Maksim231197 [3]

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Hope this helps.

4 0
2 years ago
Hey pls show some working i need some serious help
Elden [556K]

Answer:

\frac{x^{12}y^{4}}{z^3}

Step-by-step explanation:

Step 1: Multiply exponents

\frac{y^{6/6}z^{-6/2}}{x^{-12}y^{-6/2}}

Step 2: Simplify

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Step 3: Flip the negative exponents

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3 years ago
If Rachel were to paint her living room alone, it would take 2 hours. Her sister Fran could do the job in 5 hours. How many hour
snow_tiger [21]

Rachel and her sister Fran together can paint the living room in \frac{10}{7} hours

Given that

Rachel can paint half of the living room in 1 hour

Fran can paint \frac{1}{5}th part of the living room in 1 hour

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⇒ together they can paint \frac{1}{x}th part of the living room in 1 hour

By proportions,

⇒\frac{1}{2}+\frac{1}{5}= \frac{1}{x} {using operation proportions and addition}

⇒\frac{7}{10}=\frac{1}{x}

⇒x=\frac{10}{7}        

⇒ together they can paint \frac{7}{10}th part of the living room in 1 hour

It means, Rachel and her sister Fran together can paint the living room in \frac{10}{7} hours

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coldgirl [10]

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a reflection in the y-axis followed by a translation down by 7 units

Step-by-step explanation:

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3 0
2 years ago
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Answer: am not 100% sure but shouldn't it be all if them?

Step-by-step explanation:

3 0
3 years ago
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