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d1i1m1o1n [39]
3 years ago
14

Pleas yall help ill give 20 points

Mathematics
1 answer:
lesya [120]3 years ago
4 0

Answer:

b) x=-2

Step-by-step explanation:

2(x+2)-4x =8

2x+4-4x

-2x+4 = 8

    -4   -4

-2x = 4

(divide both sides by -2)

x=-2

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Answer the above question ​
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B

Step-by-step explanation:

A and C have the primes on the points not the original shape on the point so their wrong

And D the points are marked wrong

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A survey found that​ women's heights are normally distributed with mean 63.4 in and standard deviation 2.2 in. A branch of the m
Ede4ka [16]

Answer:

Step-by-step explanation:

Given that a survey found that women's heights are normally distributed with mean 63.4 in and standard deviation 2.2 in.

Let X be the random variable representing women heights.

P(58<X<80)

Z for 58 = -2.454

Z for 80 = 7.545

P(-2.454<Z<7.545) = 0.4945+0.5=0.9945

8 0
3 years ago
I need help Fast ASAP
Ksivusya [100]
1375, separate the figure into two separate rectangles then add it up
7 0
3 years ago
Can someone please answer 5, 6 and 7? Thank you.
Montano1993 [528]
Reduce a 24 cm by 36 cm photo to 3/4 original size.

The most logical way to do this is to keep the width-to-height ratio the same:  It is 24/36, or 2/3.  The original photo has an area of (24 cm)(36 cm) = 864 cm^2.

Let's reduce that to 3/4 size:  Mult. 864 cm^2 by (3/4).  Result:  648 cm^2.

We need to find new L and new W such that W/L = 2/3 and WL = 648 cm^2.

From the first equation we get W = 2L/3.  Thus, WL = 648 cm^2 = (2L/3)(L).

Solve this last equation for L^2, and then for L:

2L^2/3 = 648, or (2/3)L^2 = 648.  Thus, L^2 = (3/2)(648 cm^2) = 972 cm^2.

Taking the sqrt of both sides, L = + 31.18 cm.  Then W must be 2/3 of that, or W = 20.78 cm.

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6 0
4 years ago
I'm not too sure on this can i have some help
Ganezh [65]
Welcome to Brainly. We are here to help! 

Similar polygons vary directly with each other. They have the same scale.

Something I notice about the polygons is that both of the sides are decreased by 10.

40-30= 10 and 28-18=10

Try to find the scale.

40/28= 1.42857....

30/18= 1.666666777


I would say these are not similar polygons. They do not share the same scale.

I hope this helps!
~kaikers
3 0
4 years ago
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