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trapecia [35]
3 years ago
7

5 points Two lines are represented by equations: 10x - 15y = 21 and y = kx + 5. What value of k will make lines perpendicular?​

Mathematics
1 answer:
Wewaii [24]3 years ago
4 0

Answer:

Step-by-step explanation:

10x - 15y = 21

15y = 10x - 21

y = ⅔x - 7/5

slope of line is ⅔

slope of any perpendicular to line is -3/2

y = kx + k

slope of line is k

k = -3/2

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liq [111]

Answer:

My teacher gave this to me a while back

N = a + 10^b

N = order of magnitude of a number

a = integer a

{b} = order of magnitude of the number

6 0
2 years ago
15. (x - 3)<br> If f(x) = 2x2 – 5, find the following.<br> 16.fly-2)<br> 17. f(a+h)-f(a)
Masteriza [31]

Answer:

16. f(y-2) = 2(y-2)²-5

= 2(y²-4y+4)-5

= 2y²-8y+8-5

= 2y²-8y+3

17. f(a+h)-f(a) = 2(a+h)²-5-(2a²-5)

= 2(a²+2ah+h²)-5-2a²+5

= 2a²+4ah+h²-2a²

= h²+4ah

8 0
3 years ago
Who can solve this for me real quick?
max2010maxim [7]

Answer:

Vertex (-3, -3)

Step-by-step explanation:

Highest or lowest point lying on the graph of a parabola is said to be the Vertex of a parabola.

By this definition, point P (lowest point) is the vertex of the given parabola.

Coordinates of the Vertex are (-3, -3).

Therefore, Vertex (-3, -3) is the answer.

3 0
2 years ago
You roll two six-sided fair nukber cubes.Whatbis the probability that you will roll snake eyes(both ones)?
Katyanochek1 [597]

Answer:

1/36

Step-by-step explanation:

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3 0
2 years ago
a number is equal to twice a smaller number plus 3. The same number is equal to twice the sum of the smaller number and1. How ma
NeX [460]

Answer:

There is NO solution

Step-by-step explanation:

Considering 'y' be the number

Considering x be the smaller number

As 'y' is equal to twice a smaller number plus 3.

so

y = 2x + 3

also

y is equal to twice the sum of the smaller number and 1.

so

y = 2x + 1

so the system of equations become

y = 2x + 3

y = 2x + 1

solving

\begin{bmatrix}y=2x+3\\ y=2x+1\end{bmatrix}

\mathrm{Subsititute\:}y=2x+1

\begin{bmatrix}2x+1=2x+3\end{bmatrix}

\mathrm{Refine\:}2x+1=2x+3

-2=0

-2=0\:\mathrm{\:is\:false,\:therefore\:the\:system\:of\:equations\:has\:no\:solution}

\mathrm{No\:Solution}

Therefore, there is NO solution.

7 0
3 years ago
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