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EastWind [94]
2 years ago
13

Help me plzzzzzzzzzzz

Mathematics
1 answer:
sammy [17]2 years ago
7 0
I think the answer is 5
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What is the constant of proportionality in y=5x
-BARSIC- [3]

Answer:

<em>5</em>

Step-by-step explanation:

General equation of direct variation:

y = kx,

where k is the constant of proportionality.

In your case, you have

y = 5x, so 5 is the constant of proportionality.

8 0
3 years ago
A teacher writes the function f(x)=3x^2-18x+27 on the board. How many times does the graph of the teacher's function intersect t
Oduvanchick [21]

Answer:

Once. at (3,0)

Step-by-step explanation:

It is handy to have a graphing calculator for this kind of question.

Otherwise work it out.

All the terms are multiples of 3, so simplify.3(x^{2} -6x + 9)

then factor (x -3)(x-3)

Set each equal to 0 and solve for x.

x - 3 = 0    x = 3

OH ! they are identical! So there is only One value for x that will produce an output of 0.

So it intersects (touches) only once.

7 0
3 years ago
Jessie wants to buy three tickets for a concert. she has earned $135 and each tickey costs $50. she borrows the rest of the mone
dybincka [34]

Answer: In explanation

Step-by-step explanation:

1. 135 - 50x

2. $15

3. $0

I hope this helped!

3 0
1 year ago
What is the cash payment of a article costing RS.2020 allowing a discount of Rs.20 and levying 13% VAT?​
belka [17]

The cash payment for the article is RS. 2,260.

A discount reduces the price of an item. The article becomes cheaper after the discount.

Cost of the article after the RS. 20 discount = RS. 2020 - 20 = RS 2000

VAT means value added tax. VAT increases the price of an item. The cost of the article increases by 13% after the  VAT is levied,

Cost of the article = (100 + 13%) x 2000

1.13 x 2000 = RS 2,260.

To learn more about taxes, please check: brainly.com/question/25311567

7 0
2 years ago
If f(a) = K, then which of the following must be true? f(K) = a f -1(K) = a f -1(a) = K
Inessa05 [86]

Answer:


Step-by-step explanation:

given that f(a) = K

we have the options of

f(K) = a

f ⁻¹ (K) = a

f ⁻¹ (a) = K

Where f ⁻¹ denotes an inverse function.

If f(a) = K, then its reciprocate, f ⁻¹ (K) = a

because it is essentially undoing the original equation

6 0
3 years ago
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