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den301095 [7]
3 years ago
7

Proof that the identities are equal to eachother​

Mathematics
1 answer:
Vikentia [17]3 years ago
6 0

Answer:

Hello, hope this will help:)

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The area of a city is commonly measured in
ratelena [41]
The answer is B) square miles. This is because a city is very big, and the measure it, miles would be ideal.
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3 years ago
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I would really want for someone to help me, I need to turn this in tomorrow​
alukav5142 [94]

Answer:

x=0, y=0

x=8, y=4

Step-by-step explanation:

y= 1/2x

y=1/2(0)

y=0

y=1/2x

y=1/2(8)

y=4

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2 years ago
Select all expressions shown that are equivalent to
Murrr4er [49]

Answer:

A.  and C.

if you simplify the expressions, you will see which ones are equal to the expression given

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2 years ago
One positive number is 14 less than another positive number. If the reciprocal of the smaller number is added to five times the
Kipish [7]

Let's call the two numbers s and l.


Given these variables, we can say: s = l - 14, based on the first sentence in the problem.


Also, remember that the reciprocal of a number is simply 1 divided by the number. Thus, we can say that:

\dfrac{1}{s} + 5\Big( \dfrac{1}{l} \Big) = \dfrac{1}{4}


To solve, we can simply substitute l -14 in for s in the second equation and solve.

\dfrac{1}{l - 14} + \dfrac{5}{l} = \dfrac{1}{4}

  • Set up

\dfrac{l}{l(l - 14)} + \dfrac{5(l - 14)}{l(l - 14)} = \dfrac{1}{4}

  • Get terms on the left side to a common denominator for easier addition

\dfrac{l + 5l - 70}{l(l - 14)} = \dfrac{1}{4}

  • Simplify

4(6l - 70) = l(l - 14)

  • Cross multiplication (\frac{a}{b} = \frac{c}{d} \Rightarrow ad = bc)

24l - 280 = l^2 - 14l

  • Simplify

l^2 - 38l + 280 = 0

  • Subtract 24l - 280 from both sides of the equation

(l - 10)(l - 28) = 0

  • Factor left side of the equation

l = 10, 28

  • Zero Product Property

Now, notice that we have found two solutions, but the problem is only asking for one. This <em>likely </em>means that one of our solutions is extraneous. Let's take a look. Remember that the smaller positive number is equal to 14 less than the larger number. However,

s = 10 - 14 = -4,

Since s is not positive in this case, l = 10 is not a solution.


Thus, l = 28 is our only solution. In this case,

s = 28 - 14 = 14,

which means that the smaller number is 14 and the larger number is 28.

5 0
3 years ago
6x-+5y=-15 in slope intercept form
uranmaximum [27]
6x+5y=-15

5y=-15-6x

y=(-15-6x)/5
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