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Volgvan
3 years ago
5

write an equation using point slope form of the line having the given slope that contains the given point. m =3 and the point (-

2, 1)
Mathematics
1 answer:
Umnica [9.8K]3 years ago
7 0

Answer:

y=3x +7 slope intercept form

y=mx +b

y-1=3 x (x+2)   point slope form

Step-by-step explanation:

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The price of an item has risen to $136 today. Yesterday it was $80. Find the percentage increase.
Natalka [10]

well, the numeric difference will be 136 - 80 = 56, now, if we take 80 (original price) to be the 100%, what is 56 (the increase) in percentage off of it?

\begin{array}{ccll} amount&\%\\ \cline{1-2} 80&100\\ 56&x \end{array}\implies \cfrac{80}{56}=\cfrac{100}{x}\implies \cfrac{10}{7}=\cfrac{100}{x} \\\\\\ 10x=700\implies x = \cfrac{700}{10}\implies x = \stackrel{\%}{70}

4 0
3 years ago
What are the x-intercepts of the graph of the function f(x) = x^2 + 5x − 36?
antiseptic1488 [7]

Answer:

The x-intercepts of the graph of the function are -9  and 4

Step-by-step explanation:

  1. factor the function f(x)=x²+5x-36
  2. f(x)=(x+9)(x-4)
  3. x = -9, 4
5 0
3 years ago
Which line is perpendicular to y=7x-3 if the perpendicular line passes through the point (7, 7)? a) y=-7x-1 b) y=-7x+8 c) y=-1/7
Norma-Jean [14]

Perpendicular lines have an opposite reciprocal slope, therefore, the slope of the perpendicular line is:

-1/7

So far, y = -1/7x + b. Now we need to plug in (7, 7) into x and y for our equation.

7 = -1/7(7) + b

Simplify the right side

7 = -1 + b

Add 1 to both sides

8 = b

The equation of the perpendicular line is:

y = -1/7x + 8

3 0
3 years ago
the product of two numbers is 7904, and the absolute value of one of the numbers is 247. Find two possible solutions for the oth
Nina [5.8K]

Two Possible solutions for the other number are -32 and 32.

<h3>What are absolute value of a number?</h3>

Absolute value describes the distance from zero that a number is on the number line, without considering direction.

Overall, To find the absolute value of a number :

Let we have any number n ( it can be positive/negative ).

so, Absolute value of 'n' will be | n | (mod of n) , means we have to take positive value of the given number.

For example: | -3 | = 3

| 4 | = 4

| -1000 | = 1000

Now, For absolute value -

For example: Absolute value of 29 is 29.

Absolute value of -56 is 56.

Absolute value of -1000 is 1000.

We have given the product of two numbers is 7904.

Let say we have number 'a' and 'b'.

so, here : a x b = 7904.        ------------ ( i )

The absolute value of one of the numbers is 247.

Let Absolute value of 'a' = 247

So the number 'a' can be either 247 or -247.

because absolute value of 247 is 247 and also absolute value of -247 is 247.

using equation ( i )

a x b = 7904

b = 7904 / a.

when a = 247

b =  32

when a = -247

b = - 32

Hence, Two Possible solutions for the other number are -32 and 32.

Learn more about "Absolute Values" from here: brainly.com/question/1301718

#SPJ9

8 0
1 year ago
F(x)=3x-5 and g(x)=2x+5 What is f(x) - g(x), and another problem.
prohojiy [21]

here are the steps hope it helps

5 0
3 years ago
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