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4 years ago

What is the slope of 3x + 4Y = 24

1 answer:

6 0

The slope is going to be in y=mx+b form...
You are going to subtract 3x from both sides...
than your equation is going to be 4y=24-3x
than you have to divide EVERYTHING by 4...
so your answer is y=6-3/4x

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3 years ago

Find the least common denominator (LCD) of 9/10 and 1/7

lianna [129]

Answer:

90 and 7

Step-by-step explanation:

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2 years ago

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Gnesinka [82]

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4 years ago

Read 2 more answers

Sine of x divided by one minus cosine of x + sine of x divided by one minus cosine of x = 2 csc x

kolbaska11 [484]

Answer:

The answer in the procedure

Step-by-step explanation:

we have

$\frac{sin(x)}{1-cos(x)}+\frac{sin(x)}{1-cos(x)}=2csc(x)$

Prove the identity

In this problem there is a mistake: in order to obtain an identity the second denominator at the left side must be 1 + cosx

$\frac{sin(x)}{1-cos(x)}+\frac{sin(x)}{1+cos(x)}=2csc(x)$

Adds fraction in the left side

$\frac{sin(x)(1+cos(x)+sin(x)(1-cos(x)}{1-cos^{2} (x)}=2csc(x)\\ \\\frac{2sin(x)}{1-cos^{2} (x)}=2csc(x)$

Remember that

$csc(x)=\frac{1}{sin(x)}$

and

$sin^{2}(x)+cos^{2}(x)=1$

$sin^{2}(x)=1-cos^{2}(x)$

substitute

$\frac{2sin(x)}{sin^{2}(x)}=2\frac{1}{sin(x)}$

Multiply both sides by sin(x)

$(sin(x))\frac{2sin(x)}{sin^{2}(x)}=2$

$\frac{2sin^{2}(x)}{sin^{2}(x)}=2$

$2=2$ ----> identity verified

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3 years ago

What is linear combination?

morpeh [17]

In mathematics, a linear combination is an expression constructed from a set of terms by multiplying each term by a constant and adding the results (e.g. a linear combination of x and y would be any expression of the form ax + by, where a and b are constants)

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3 years ago