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nalin [4]
3 years ago
9

Raffle tickets are being sold for a fundraiser. The function a(n) relates the

Mathematics
1 answer:
Vlada [557]3 years ago
8 0

Answer:

If the function is

A(n) = 4n -25

and we wish to get the inverse function N(a)

We let

A(n) = a

n = N(a)

Plugging in the values

a = 4 N(a) - 25

Arranging the equation:

4 N(a) = a + 25

N(a) = (a + 25) /4

The answer is

N(a) = (a + 25) /4

Step-by-step explanation:

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Evaluate the expression: (–2)2 + (–4)2 + (18 – 23). <br> A. –19 <br> B. 19 <br> C. –17 <br> D. 3
ValentinkaMS [17]

Answer:

c

Step-by-step explanation:

(–2)2 + (–4)2 + (18 – 23) = -4-8-5= -17

8 0
2 years ago
HELP PLEASE!!
sattari [20]

Answer: 1/3

Step-by-step explanation:

We know that after dilation with scale factor k the coordinates of pre-image (x,y) map to (kx,ky) of the image.

From the given graph, the coordinate of A =(9,4) and the coordinate of A' (3,2)

Then x = 9 and kx = 3

\Rightarrow k(9)=3\\\\\Rightarrow\ k=\frac{3}{9}\\\\\Rightarrow\ k=\frac{1}{3}

Therefore, the scale factor of the dilation is 1/3.

4 0
2 years ago
Please help!! I will mark the brainlest if it’s correct
strojnjashka [21]

Answer:

Therefore

m Angle 1 = m Angle 2  = 31° ...Justified

Step-by-step explanation:

Given:

m angle 1 = ( 3x + 10 )°

m angle 2 = ( 5x - 4 )°

To Find:

m∠1 = ?

m∠2 = ?

Solution:

Vertical Angles:  

The angles opposite each other when two lines cross. They are always equal.

∴ m Angle 1 = m Angle 2

Substituting the given values we get

3x+10=5x-4\\\\2x=14\\\\x=\dfrac{14}{2}=7\\\therefore x =7

Substituting ' x ' in Angle 1 and Angle 2 we get

m Angle 1 = 3 × 7 + 10 = 31°

m Angle 2 = 5 × 7 - 4  = 31°

Therefore

m Angle 1 = m Angle 2  = 31° ...Justified

5 0
2 years ago
What is the solution to y + 7= -3
Anna11 [10]
-10 because if you flip it 7-10=-3
8 0
2 years ago
What do the 5 -groups mean ?
jolli1 [7]
5, 10, 15, 20. i think that's what it means.get a second opinion.
4 0
3 years ago
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