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AlexFokin [52]
3 years ago
10

WILL MARK BRAINLIEST Mario reduced a picture that is 10 inches long by 8 inches wide using a photocopier. The reduced picture is

now 6 inches long. By what scale factor did the photocopier reduce the picture? *
3/5

3/4

4/3

5/3
Mathematics
1 answer:
MAXImum [283]3 years ago
5 0
I think it is 3/5
but not sure
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Find major of 1 in the diagram.
34kurt

Answer:

85° (C).

Step-by-step explanation:

35° should go over to the other side of the line:

180 - 35 = 145°

Find angle 1:

145 + 130 + angle 1 = 360°

360° = 275° + angle 1

angle 1 = 360 - 275

angle 1 = 85°

85° which is C is the answer.

8 0
3 years ago
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I need help on #19 and 20<br> please help !!!
tekilochka [14]
        -3x - 3y > 5
-3x + 3y - 3y > 3x + 5
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3 0
3 years ago
Suppose a normal distribution has a mean of 48 and a standard deviation of 2. What is the probability that a data value is betwe
stepan [7]

Answer:

Choice D.  15.2%

Step-by-step explanation:

We have a normal...

mean u = 48

standard deviation s = 2

We want P(43 < X < 46)

We standardize.

Consider  P(43 < X)  = P( (43 - 48)/2 < Z) = P(-2.5 < Z)

P( X < 46) = P( Z < (46 - 48)/2 ) = P(Z < -1)

We want  P( -2.5 < Z < -1)

Look at Z-scores.

P( Z < -2.5)  = 0.0062

P(Z  < -1) = 0.1587

so  P(-2.5 < Z < -1) =  P(Z < -1) - P(Z < -2.5) = 0.1587 - 0.0062 = 0.1525 = 15.2%

about

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3 years ago
Factor the trinomial:<br><br> -2x²-16x-24
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-2x^2-16x-24&#10;&#10;
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8 0
3 years ago
(1 point) (a) The Cartesian coordinates of a point are (1,1). (i) Find polar coordinates (r,θ) of the point, where r&gt;0 and 0≤
Gre4nikov [31]

Answer:

P(1, π/4)

P(-1, π/4)

P(4, 5π/6)

P(-4, 5π/6)

Step-by-step explanation:

Knowing the formulas

r = √(x²+y²)

θ = Arctg (y/x)

we have

a) P(1, 1)

i)  

r = √(1²+1²) = +1

r = +1

θ = Arctg (1/1) = π/4

P(1, π/4)

ii) r = √(1²+1²) = -1

r = -1

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b) P(2√3, -2)

i)  

r = √((2√3)²+(-2)²) = +4

r = +4

θ = Arctg (-2/2√3) = 5π/6

P(4, 5π/6)

ii)

r = √((2√3)²+(-2)²) = -4

r = -4

θ = Arctg (-2/2√3) = 5π/6

P(-4, 5π/6)

5 0
3 years ago
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