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g100num [7]
3 years ago
9

The slopes of perpendicular lines are

Mathematics
1 answer:
romanna [79]3 years ago
7 0

Answer:

A. Negative reciprocals

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Saul in third in line. Enid is last in line. There are 3 children between them. What position is Enid in line?
VLD [36.1K]
Enid is seventh in line
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3 years ago
Could someone please help me? Thank you and explain the work because I don’t get this
lesya [120]

Answer:

5.59 times per second.

Step-by-step explanation:

Direct variation is in the form:

y=kx

Where <em>k</em> is the constant of variation.

Inverse variation is in the form:

\displaystyle y=\frac{k}{x}

In the given problem, the frequency of a vibrating guitar string varies inversely  as its length. In other words, using <em>f</em> for frequency and <em>l</em> for length:

\displaystyle f=\frac{k}{\ell}

We can solve for the constant of variation. We know that the frequency <em>f</em> is 4.3 when the length is 0.65 meters long. Thus:

\displaystyle 4.3=\frac{k}{0.65}

Solve for <em>k: </em>

<em />k=4.3(0.65)=2.795<em />

<em />

So, our equation becomes:

\displaystyle f=\frac{2.795}{\ell}

Then when the length is 0.5 meters, the frequency will be:

\displaystyle f=\frac{2.795}{.5}=5.59\text{ times per second.}

5 0
3 years ago
MARKING BRAINLIEST TO FIRST PERSON WHO IS CORRECT!<br><br><br> I need help with #13
levacccp [35]

Answer:

True

False

False

Step-by-step explanation:

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Answer:

Step-by-step explanation:

4 0
3 years ago
a rhombus as an area of 72 ft and the product of the diagonals is 144. What is the length of each diagonal?
SashulF [63]

A = (1/2)(x)(y)

Let x = diagonal 1

Let y = diagonal 2

The product of xy = 144.

This means that x = 12 and y = 12.

So, 12 • 12 = 144

Each diagonal is 12 feet.

Prove:

72 feet = (1/2)(12)(12) feet

72 feet = (1/2)(144) feet

72 feet = 72 feet

6 0
3 years ago
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