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FrozenT [24]
3 years ago
15

Please i need help−12(7z+4)+15(5z−15)

Mathematics
1 answer:
Tanzania [10]3 years ago
7 0

I got  -9z-273

Multiply -12 by 7z (-84z) and by 4 (48) and multiply 15 by 5z (75z) and -15 (-225) then combine like terms, Underlined combines with underlined : bold combines with bold <em>-84z</em><u>-48</u><em>+75z</em><u>-225</u>

I hope this helps you

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f the price charged for a candy bar is​ p(x) cents, where p (x )equals 162 minus StartFraction x Over 10 EndFraction ​, then x t
andreev551 [17]

Answer:

a. 1620-x^2

b. x=810

c. Maximum value revenue=$656,100

Step-by-step explanation:

(a) Total revenue from sale of x thousand candy bars

P(x)=162 - x/10

Price of a candy bar=p(x)/100 in dollars

1000 candy bars will be sold for

=1000×p(x)/100

=10*p(x)

x thousand candy bars will be

Revenue=price × quantity

=10p(x)*x

=10(162-x/10) * x

=10( 1620-x/10) * x

=1620-x * x

=1620x-x^2

R(x)=1620x-x^2

(b) Value of x that leads to maximum revenue

R(x)=1620x-x^2

R'(x)=1620-2x

If R'(x)=0

Then,

1620-2x=0

1620=2x

Divide both sides by 2

810=x

x=810

(C) find the maximum revenue

R(x)=1620x-x^2

R(810)=1620x-x^2

=1620(810)-810^2

=1,312,200-656,100

=$656,100

7 0
4 years ago
Determine whether the lines are parallel, intersect, or coincide.
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Answer:

The answer is intersect

Step-by-step explanation:

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Answer:

y=5x-9

Step-by-step explanation:

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3 years ago
Find the percentage area of moss in a lawn if 3 out of 24 squares contained moss
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3 years ago
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Which term of the AP:3,15,27, 39,.....will be 132 more than its 54th term​
horsena [70]

Answer:

n=65th term

Step-by-step explanation:

AP:3,15,27,39......

From the AP

a=3

a+d=15

a+2d=27

3+d=15 (1)

3+2d=27 (2)

Subtract (1) from (2)

We have,

2d-d=27-15

d=12

54th term=a+(n-1)d

=3+(54-1)12

=3+(53)12

=3+636

=639

The term is 132 more than the 54th term

132+54th term

=132+639

=771

Find the term

771=a+(n-1)d

771=3+(n-1)12

771-3=12n-12

768=12n-12

768+12=12n

780=12n

n=780/12

=65

n=12

The term which is 132 more than the 54th term is the 65th term

4 0
3 years ago
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