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miv72 [106K]
3 years ago
10

A survey is given to a class, asking about each person's favorite season of

Mathematics
1 answer:
lina2011 [118]3 years ago
4 0
5/10 and 1/2 as they are the same.
Because there are 100 pupils in total.
10 choose summer and 40 choose fall, totalling 50 students out of 100.
=5/10 and 1/2
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Y=(x-4)(x+20) find vertex
andrew11 [14]
Y = (x-4)(x+20)   ===> 0 = (x-4)(x+20)

that means the roots of that quadratic are x = 4 and x = -20.

now, the vertex will be between these two guys, right in between.

from -20 to 4 there are 24 units, half-way of that is 12 units, so, if we move from -20, 12 units to the right or towards 4, we'll end up at -20 + 12 = -8.

so, the vertex's x-coordinate is -8 then, what's "y" anyway?

y = (x-4)(x+20)         x = -8

y = [(-8) - 4] [(-8) + 20]

y = (-12) ( 12)

y = -144

therefore, the vertex is at (-8 , -144)
7 0
3 years ago
I Need Hellp! With this!!
VARVARA [1.3K]

Answer:

1/14

Step-by-step explanation:

slope = difference of y over difference of x

= (-3-(-4)) /(8 -(-6)) = 1/14

6 0
3 years ago
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The answer to this problem
telo118 [61]

Answer:

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5 0
2 years ago
Determine if the figures are similar. If they are, what is the scale factor from the first figure to the second figure?
lora16 [44]

Answer:

The scale factor is \frac{3}{2}

Step-by-step explanation:

Yes the figures are similar to each other. The ratio of their linear measurements is in uniform ration

The ration of radius of large cylinder (R) to that of the smaller cylinder (r) is

\frac{18}{12} \\\frac{3}{2}

Like wise the ration of height of large cylinder (H) to that of the smaller cylinder (h) is

\frac{30}{20} \\\frac{3}{2}

The scale factor is \frac{3}{2}

5 0
3 years ago
A function follows the rule y = -75 - 5 x . When the function's output is 25, the equation is 25 = -75 - 5 x .
Alex787 [66]

Answer:

The function's input = x = -20

Step-by-step explanation:

Given the function

y = -75 - 5x

Given that the output = y = 25

substituting the value y=25 and solve to find the input 'x'

25 = -75 - 5x

5x = -75-25

5x = -100

Divide bothe side by 5

x = -20

Thus, the function's input = x = -20

5 0
3 years ago
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