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Natasha_Volkova [10]
3 years ago
11

Find a so that the point (-1,5) is on the graph

Mathematics
1 answer:
nirvana33 [79]3 years ago
7 0
F(x)=ax^2+4 thus
a=(f(x)-4)/x^2=(5-4)/(-1)^2=1

Answer: a=1.
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The washing machine had a selling price of P4,792. It had been marked up by P1,248. What was the cost? What was the mark-up rate
LUCKY_DIMON [66]

Answer:

The cost of the washing machine is P 3,544

The mark-up rate is 35.21%

Step-by-step explanation:

1. We want to calculate the cost

Mathematically, this is the difference between the selling price and the mark up

We have this as;

4,792 - 1,248 = P 3,544

2. Here, we want to calculate the mark-up rate

Mathematically, this is the percentage of mark-up

That is;

mark-up/cost price * 100%

: 1,248/3,544 * 100% = 35.21%

5 0
3 years ago
Given that P = (2, 9) and Q = (4, 14), find the component form and magnitude of vector PQ.
polet [3.4K]
We are asked to determine the lengths of the line segment drawn with these points as endpoints. The equation of the distance between points is,
                              d = sqrt ((y2 - y1)² + (x2 - x1)²)
Substituting the coordinates of the points,
                               d = sqrt ((14 - 9)² + (4 - 2)²)
The numerical value for d is approximately 5.39. 
6 0
4 years ago
Hi i just need a simple explanation for this question!
Goryan [66]

Answer:

5/3

Step-by-step explanation:

3^5 = 27 ^x

Rewrite 27 and 3^3

3^5 = 3^3^x

We know that a^b^c = a^(b*c)

3^5 = 3^(3x)

The bases are the same so the exponents are the same

5 = 3x

Divide by 3

5/3 =x

6 0
3 years ago
Read 2 more answers
The answer to this problem
Alexandra [31]
I have more problems then this.
6 0
3 years ago
I know number 13 is right, how do I do 11 and 12?
snow_tiger [21]
11. 43 ; 137
12. 12 ; 102
8 0
3 years ago
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