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mezya [45]
3 years ago
13

PLEASE HELP!!! If you can help I will really appreciate it!!

Mathematics
1 answer:
Veronika [31]3 years ago
3 0

Answer:

a) x(2x-3)

x=width

b) 6x-6

A EXPLANATION

y: length

x: width

Length+3=2Width

y+3=2x

y=2x-3

x times y = area

x(2x-3) = area

B EXPLANATION

x=width

2x-3=length

x+x+(2x-3)+(2x-3)

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Please help me here
Natasha2012 [34]

Answer:

C

Step-by-step explanation:

C because you multiply the nimbers and then divid.

3 0
3 years ago
If one side of a square notebook measures 20 cm, what is the area of the front cover of the notebook?
jarptica [38.1K]

Answer:

400 cm squared

Step-by-step explanation:

Since a square has all equal sides, this would mean the the all the other sides are 20 as well. To get the area, you would just multiply 20 by 20 to get 400. :)

6 0
3 years ago
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A(x) = -0.015x^3+1.05xA ( x ) = − 0.015 x 3 + 1.05 x gives the alcohol level in an average person's blood x hrs after drinking 8
goldfiish [28.3K]

Answer:

Yes

Step-by-step explanation:

the function that gives the alcohol level is:

A ( x ) = - 0.015 x^3 + 1.05 x

where x is the number of hours.

we need to know if after 4 hours an average person is legally drunk, thus:

x=4

and we substitute this in the function:

A ( 4 ) = - 0.015 (4)^ 3 + 1.05(4)

solving these operations we obtain:

A(4)=-0.015(64)+4.2\\A(4)=-0.96+4.2

A(4)=3.24

the alcohol level after 4 hours is 3.24.

Since a person is considered to be legally drunk if the level exceeds 1.5, and we obtained 3.24 which is greater than 1.5, a person who has been drinking for 4 hours under the conditions indicated by the problem would be considered legally drunk.

5 0
3 years ago
When written in standard form, the quadratic equation, x2 - 2x - 35 = 0, is equivalent to y = (x - 1)2 - 36. What is the vertex
horrorfan [7]
 y = a(x - b)^2 + c     has vertex  (b , c)

so here the vertex is (1, -36)
6 0
3 years ago
X2 is the GCF of this polynomial.
nadezda [96]

Answer:

B

Step-by-step explanation:

6 0
3 years ago
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