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3 years ago

Can you please help me I need help with this question it’s for my test

Mathematics

1 answer:

kodGreya [7K]3 years ago

7 0

Answer:

y=3

Step-by-step explanation:

Assuming this is an enlargement where EFGH is enlarged to ABCD then the former is the object and the latter is the image. If so then

scale factor(k) of the enlargement=image length/corresponding object length

k=3/2

Therefore, y=4.5/k

y=4.5/(3/2)

y=3

If we take the assumption another way and say ABCD is reduced to EFGH then the former is the object and the latter is the image.

In that case,

k=⅔

y=4.5×k

y=3

In either case y=3units

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AysviL [449]

Ok so idk if I'm right but y= -2x+21

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4 years ago

Find the area of the figure

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Answer:

288

Step-by-step explanation:

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3 years ago

En un huerto se siembra frijol. Si se pone una planta, produce 3kg de frijol. por cada planta extra que se ponga, todas las plan

Ad libitum [116K]

Answer:

y = -0.07x2 + 3.07x

Step-by-step explanation:

For each plant we add, there is a decrease of 70 grams for all plants from the inicial value of 3 kg of beans.

So, for 2 plants, we have (3 - 0.07) * 2

For 3 plants, we have (3 - 2*0.07) * 3

For x plants, we have (3 - (x-1)*0.07) * x

So we can model the final result of the amount of beans 'y' with the equation:

y = (3 - (x-1)*0.07) * x

y = (3 - 0.07x + 0.07) * x

y = (3.07 - 0.07x) * x

y = -0.07x2 + 3.07x

(In this equation we have a = -0.07, b = 3.07 and c = 0)

7 0

3 years ago

Simplify: -4x(2x – 3) + 10x^2

oksian1 [2.3K]

Step-by-step explanation:

-4x(2x – 3) + 10x^2

$- 8 {x}^{2} + 12x + 10 {x}^{2} \\ 2 {x}^{2} + 12x$

5 0

3 years ago

8 3/4 +n+ 2 3/8 +23 1/8 <br> solve for n

bezimeni [28]

8 3/4+n+2 3/8+ 23 1/8
8 3/4+n+ 25 4/8
35/4+ n+ 204/8
70/8 +n+ 204/8
274/8 +n
n= -274/8= -25 1/2

4 0

3 years ago