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Alexxandr [17]
2 years ago
13

Can someone help me with the equation in the picture below.

Mathematics
1 answer:
zlopas [31]2 years ago
4 0

Answer:

x=3

Step-by-step explanation:

First, you would distribute the 4 to the (x-3), giving you 2x-6+4x-12

From there combine like terms, 2x+4x=6x, -6+-12=-18

6x+-18=0

6x=18

divide both side by 6, and you get 3=x!

I hope that all makes sense :)

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Find the real and imaginary zeros of the polynomial function G(x)=2-8x
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2 years ago
The bases of the trapezoid are 6 and 10. The height is 4. Find the area.
ollegr [7]
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b. 32 sq. unit

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The area of the trapezoid is given by

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6 0
3 years ago
According to the WHO report, girls who are 2-years old have a mean head circumference of 47.18cm with a standard deviation of 1.
Verdich [7]

Answer:

1. z = -1.91429

The z score tells us that the head circumference of the girl with the down syndrome ( 44.5 cm) is 1.91429 standard deviations below the mean or average head circumference

2. 2.7792%

Step-by-step explanation:

1. Relative to the WHO data, what is this girls z-score?

z score formula is:

z = (x-μ)/σ, where

x is the raw score = 44.5 cm

μ is the population mean = 47.18cm

σ is the population standard deviation = 1.40cm

z = 44.5 - 47.18/1.40

z = -1.91429

What does the z score tell us?

The z score tells us that the head circumference of the girl with the down syndrome ( 44.5 cm) is 1.91429 standard deviations below the mean or average head circumference

2. Using the WHO data in a normal model, what percentage of the girls has a head circumference that is smaller than the girl with Down's Syndrome?

z score = -1.91429

Probability value from Z-Table:

P(z =-1.91429) = P(x<44.5) = 0.027792

Converting to percentage = 0.027792 × 100

= 2.7792%

6 0
2 years ago
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