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juin [17]
2 years ago
13

Write down the equation of a line perpendicular to y = 2x + 3

Mathematics
1 answer:
Naddik [55]2 years ago
8 0

Answer:

General equation of a line perpendicular to y = − 2x + 3 is y = 1/2x + k where is the k is the y intercept.

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What are the zeros of the function f(x)=x^2-2x-15?
valkas [14]
To find the zeros of this function, we must first set the entire function equal to 0

f(x) = x² - 2x - 15 = 0

Since this is a quadratic function, we must use the quadratic formula, which is:

\frac{-b +/-  \sqrt{b^{2} - 4(a)(c) } }{2a}

Let's assign a, b, and c using our first function
x² means a = 1 (because it could be written as 1x²)
-2x means b = -2
-15 means c = -15

Now let's plug those in:

\frac{-(-2) +/- \sqrt{(-2)^{2} - 4(1)(-15) } }{2(1)}

which simplifies to:

\frac{2 +/- \sqrt{(4 + 60} }{2}

Simplified further:

\frac{2 +/- \sqrt{(64} }{2}
\frac{2 +/- 8 }{2}
And divide it by the 2 on the bottom gives us:

2 +/- 4

2+4 = 6
2-4 = -2

So the zeros of this function are -2 and 6
6 0
3 years ago
Read 2 more answers
Find percentage notation for 300/800
astra-53 [7]
37.5 % of 800 is 300 because of division
7 0
3 years ago
PLZ HELP!!!!!!!!!!!!
Nezavi [6.7K]

Answer:

1. 0.5

2. 0.25

3.  0.33333...

4.  0.2

5.  0.75

6. 0.666...

7. 0.4

8. 0.375

9. 0.444...

10. 0.28571428571429

Step-by-step explanation:

6 0
2 years ago
Can someone pls explain this to me I am super dead tired today sorry
steposvetlana [31]

Answer:

y = - 1

Step-by-step explanation:

Its flat line do it has no slope so its named by the name that is in every point

which is the y point -1 so its y=-1

8 0
3 years ago
Read 2 more answers
When a book of 100 pages is opened, the sum of the facing page numbers can be divided by 5, the quotient is a product of 3 and 7
statuscvo [17]
Sum means the result of addition.
Quotient means the result of division.
Product means the result of multiplication.

The product of 3 and 7 is 21, because:
3 × 7 = 21

Therefore, the quotient is 21.

Let the sum of the facing page numbers = x:
Therefore, x/5 = 21
Rearranging the equation to find x (the sum of the facing page numbers) gives us:
x = 21 × 5
= 105
So the sum of the facing page numbers is 105.

The only two adjacent numbers which add up to 105 are 52 and 53, so the facing page numbers must be 52 and 53.
3 0
3 years ago
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