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3 years ago

Someone help me please with this algebra homework

Mathematics

1 answer:

galina1969 [7]3 years ago

4 0

Answer: second choice!

Step-by-step explanation:

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HELPPPP PLEASE IK ITS LONG BUT PLEASE HELP 9-12

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Girl i don’t know but i hope you find your answer boo

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3 years ago

What does the value of x have to be so that

Natali5045456 [20]

The value of x is 5

Solution:

The slope of a line is given by formula:

$Slope = \frac{ y_2-y_1}{x_2-x_1}$

From given,

$slope = \frac{11}4}\\\\(x_1, y_1) = (x, -7)\\\\(x_2, y_2) = (-1, 4)$

Substituting the values we get,

$\frac{11}{4} = \frac{4+7}{-1-x}\\\\-11 - 11x = 11 \times 4\\\\-11-11x = 44\\\\11x = -11-44\\\\11x = 55\\\\x = 5$

Thus the value of x is 5

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3 years ago

Which number is its own opposite

Len [333]

The number that is its own opposite is zero.

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4 years ago

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If Tanø =a/b Find the value of sinø+cosø/sinø-cosø

inysia [295]

Answer:

$\frac{b+a}{b-a}$

Step-by-step explanation:

Tan θ = $\frac{perpendicular}{base}$ = $\frac{b}{a}$

So, Perpendicular = b, base = a

Finding hypotenuse by Pythagorean Theorem:

$c^2 = a^2+b^2$

=> So, hypotenuse = c

Sin θ = $\frac{perpendicular}{hypotenuse}= \frac{b}{c}$

Cos θ = $\frac{base}{hypotenuse}= \frac{a}{c}$

So, Now finding $\frac{sin\theta+cos\theta}{sin\theta-cos\theta}$

=> $\frac{b}{c} + \frac{a}{c}$ ÷ $\frac{b}{c} - \frac{a}{c}$

=> $\frac{b+a}{c}$ ÷ $\frac{b-a}{c}$

=> $\frac{b+a}{c} * \frac{c}{b-a}$

=> $\frac{b+a}{b-a}$

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3 years ago

What is 18 over 21 in simplest form

a_sh-v [17]

It would be 6/7 if im not mistaken.

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3 years ago

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