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Temka [501]
3 years ago
6

Write the equation of the​ line, with the given​ properties, in​ slope-intercept form. Slope=- 7​, through ​(- 4​,8​)

Mathematics
1 answer:
san4es73 [151]3 years ago
6 0

y = - 7x - 20

the equation of a line in ' slope- intercept form ' is

y = mx + c → (m is the slope and c the y- intercept)

here m = - 7 ⇒ y = - 7x + c

to find c substitute ( - 4 , 8 ) into the equation

8 = 28 + c ⇒ c = 8 - 28 = - 20

y = - 7x - 20 → equation in slope- intercept form


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The measure of angle A in the isosceles triangle ABC is equal to 120 degrees.

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An equation is an expression that shows the relationship between two or more numbers and variables.

In the triangle ABC, AB = BC = 8. Triangle ABC is an isosceles triangle and ∠B = ∠C = 30° (base angles are equal).

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∠A + 30 + 30 = 180

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The measure of angle A in the isosceles triangle ABC is equal to 120 degrees.

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4 0
2 years ago
How to factor with the quadratic fourmula. n2-18n+66=0
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Solve the equation using the quadratic formula
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The Quadratic formula provides the solution for
A
n
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2 years ago
X^2-4x+6x-24 factored​
Lynna [10]

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Step-by-step explanation:

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3 0
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Brrunno [24]

Answer:

x_1=1+\sqrt{89}\\\\x_2=1-\sqrt{89}

Step-by-step explanation:

Apply Distributive property:

(x+7)(x-9)=25\\\\x^2-9x+7x-63=25

Add like terms and then add 63 to both sides of the equation:

x^2-2x-63=25\\\\x^2-2x-63+63=25+63\\\\x^2-2x=88

Pick the coefficient of the x term, divide it by 2 and square it:

(\frac{2}{2})^2=1

Add it to both sides of the equation:

x^2-2x+1=88+1

Rewriting the left side as a squared binomial, we get:

(x-1)^2=89

Apply square root to both sides:

\sqrt{(x-1)^2}=\±\sqrt{89}\\\\x-1=\±\sqrt{89}

And finally we need to add 1 to both sides of the equation. Then we get:

x-1+1=\±\sqrt{89}+1\\\\x=\±\sqrt{89}+1\\\\\\x_1=1+\sqrt{89}\\\\x_2=1-\sqrt{89}

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3 years ago
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Minchanka [31]

Answer: 10 to the 10th power

Step-by-step explanation:

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2 years ago
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