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solmaris [256]
3 years ago
7

What is the product of 2x + y and 5x – y + 3? ___x^2 + ___xy + ____x + ____y^2 + ___y

Mathematics
1 answer:
Katena32 [7]3 years ago
8 0

10x^2 + 3xy - y^2 + 6x +3y

Hope this helps :)

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20points!!!!! Help pls HURRY!!!!
Lisa [10]

Answer:

yes yes  no

Step-by-step explanation:

4 0
3 years ago
The heights of women aged 20 to 29 are approximately normal with mean 64 inches and standard deviation 2.7 inches. Men the same
san4es73 [151]

Answer:

Step-by-step explanation:

Z=\frac{x-mu}{\sigma }

X - Heights of women aged 20 to 29: X is N(64, 2.7)

Y - Heights of men aged 20 to 29: X is N(69.3, 2.8)

a) X=6'=72"

Z=\frac{72-64}{2.7} =2.963

b) Y = 72"

z=\frac{72-69.3}{2.8} =0.965

c) 72' women can be taken as very tall but men moderately taller than average

d) Y<5'5" =65"

Z<\frac{65-69.3}{2.8} =-1.536

e) X>73"

Z>\frac{73-64}{2.7} =3.33

Almost 0% can be taken

f) IQR =Q3-Q1

Z scores =

5 0
3 years ago
a survey of factories in five northeastern states found that 10% of the 300 workers surveyed were satisfied with the benefits of
DiKsa [7]
Well I don't know if i'm answering the question, but 30 workers surveyed were satisfied with the benefits they received from the employers because 300 multiplied by .10 is 30. Hope my answer is useful.

5 0
3 years ago
PLEASE HELP WITHIN 5 MINUTES! Be as accurate as possible!
Nookie1986 [14]

Answer:

2,75in

4,25in

33in²

Step-by-step explanation:

shorter base is 2,75in

larger base is 4,25in

S=11+10,5+9+2,5=33in²

8 0
2 years ago
Find the function (-2)
Mariana [72]

Note on how to solve such equation:

This is a quadradic equation. The figure shown is a parabola. This parabola opens downward. Now, this information is not necessary important for this particular situation; however, it needs to be retained for said class or for the near future.

The equation for a quadradic function is: f(x)=x^2+2

when x=-2, y=1

3 0
3 years ago
Read 2 more answers
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