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nekit [7.7K]
3 years ago
10

Please help! Similarity transformations!! I’ll mark brainliest later on :)

Mathematics
1 answer:
Margaret [11]3 years ago
7 0

1. 1/2

2. Y

3. 1 left 3 ups. (-1, 3)

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Q is directly proportional to √p Q = 21 when p = 9, the value of Q when p = 81 is *
slavikrds [6]

Answer:

We get Q=63 when p=81

Option A is correct.

Step-by-step explanation:

We are given that Q \propto \sqrt{p}

We can write it as Q=k\sqrt{p}

Where k is constant of proportionality.

We are given Q = 21 when p = 9

Using this Q = 21 when p = 9 we can find value of k

Q=k\sqrt{p}\\k=\frac{Q}{\sqrt{p} }\\k=\frac{21}{\sqrt{9} }  \\k=\frac{21}{3}\\k=7

So, we get constant of proportionality k = 7

Now, Finding the value of Q when p = 81

We are given p=81, k=7, we need to find Q

Using the equation Q=k\sqrt{p} we can find value of Q.

Q=k\sqrt{p}\\Q=7\sqrt{81}\\Q=7\times 9\\Q=63

So, we get Q=63 when p=81

Option A is correct.

7 0
3 years ago
The outboard engine on Steve's boat uses a fuel-to-oil mixture in a 50:1 ratio. If Steve puts 2.5 gallons of fuel in the tank, h
Llana [10]
1 gallon = 128 fluid ounces
2.5 gallons = 2.5 x 128 = 320 fluid ounces

Steve's boat uses 50 fluid ounce of fuel to 1 fluid ounce of oil, thus
for 320 fluid ounce of fuel it will use 320/50 = 6.4 fluid ounce of oil.

5 0
3 years ago
Can you please help me answer this question?
andreyandreev [35.5K]
The expressions for this are A,B,C,E,G
5 0
3 years ago
ASAP PLS!!!
nalin [4]

Answer:

multiplied by 3

Step-by-step explanation:

red is scaled up by 3 from blue

6 0
3 years ago
Read 2 more answers
two hundred tickets for the school play were sold. tickets cost $2 for students and $3 for adults. the total amount collected wa
Gre4nikov [31]
A system of equations is good for a problem like this.
Let x be the number of student tickets sold
Let y be the number of adult tickets sold
x + y = 200
2x + 3y = 490
x = 200 - y
2(200 - y) + 3y = 490
400 - 2y + 3y = 490
400 + y = 490
y = 90
The number of adult tickets sold was 90.
x + 90 = 200 --> x = 110
2x + 3(90) = 490 --> 2x + 270 = 490 --> 2x = 220 --> x = 110
The number student tickets sold was 110.
4 0
3 years ago
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