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iogann1982 [59]
3 years ago
14

Please help my brain isn’t working

Mathematics
1 answer:
sveta [45]3 years ago
4 0

Answer:

2.25

Step-by-step explanation:

substitute x = -2 into y = (2/3)^x

=> y = (2/3)^-2

=> y = 9/4 = 2.25

You might be interested in
Enter the coordinates of the vertices of r(180,0) and t(3,-2) (QRST) will give crown
Viktor [21]

Answer:

Step-by-step explanation:

From the graph attached,

Coordinates of the vertices are,

Q(1, 3), R(3, -3), S(0, -2) and T(-2, 1)

Following the rule of translation by 3 units to the right and 2 units down T_{(3, -2)}

(x, y) → (x+3, y-2)

Q(1, 3) → Q''(4, 1)

R(3, -3) → R"(6, -5)

S(0, -2) → S"(3, -4)

T(-2, 1) → T"(1, -1)

Following rule r_{(180,\text{O})} (rotation of a point by 180° about the origin) will give the image points,

(x, y) → (-x, -y)

Q"(4, 1) → Q'(-4, -1)

R"(6, -5) → R'(-6, 5)

S"(3, -4) → S'(-3, 4)

T"(1, -1) → T'(-1, 1)

7 0
3 years ago
ramon ate at a restaurant and gave the server a $4 tip the tip was 20% of the cost of the meal how much was the meal
Tomtit [17]

Answer:

The meal was $20

Step-by-step explanation:

20%= 1/5

1/5=4/? ---> one converts to four by multiplying it by 4 so you should do the the same with the denominator which is five.

5×4= 20

5 0
2 years ago
How do i expand (3x+5)^2
shepuryov [24]
I don't know how you expand it but the answer is 3x + 25 unless that's expanding.
8 0
3 years ago
Read 2 more answers
Whats 1-2x+3y for x=-2 and y=-5 ?​
lawyer [7]

Answer:

-10

Step-by-step explanation:

2*-2=-4

3*-5=-15

1-(-4)+(-15)=-10

5 0
3 years ago
Write it in an algebraic expression form!
Phoenix [80]
1.

(x/2) - 7 = 11


2.

2x + 7 = 27


3.

2x - 5 = 25




Hope this helped!! (:
7 0
2 years ago
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