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lbvjy [14]
3 years ago
14

-1/2(7z+4) + 1/5(5z - 15)

Mathematics
1 answer:
saw5 [17]3 years ago
8 0

Step-by-step explanation:

-3.5z - 2 + 1z - 3

Solving like terms

-2.5z - 5

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I need help asap please
Anna [14]

Answer:

-3 or decreasing by 3

Step-by-step explanation:

To find the average change, you only care about the first and last point which would be (3,17) and (8,2)

the overall change during that time is 2-17=-15 (for the f(x) side )

the overall change during that time is 8-3=5(for the x side)

all we have to do is -15/5=-3

therefore the average rate of change is -3

5 0
2 years ago
A chicken farm orders bags of feed from two farmers. Store X charges $20 per bag, and store Y charges $15 per bag. The farm must
oksano4ka [1.4K]
40 bags from store Y and the rest (20) from store X
7 0
3 years ago
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The first five terms of a sequence are
Elena L [17]

Answer:

(a) 7 + 3( n - 1 )

(b) 1006

Step-by-step explanation:

ARITHMETIC SEQUENCE.

The number of term of an Arithmetic progression has the formular :

nth term = a + ( n - 1 ) d

a = 7

d = 10 - 7 = 3

nth term = 7 + ( n - 1 ) 3

= 7 + 3n - 3

= 7 + 3( n - 1 )

Therefore,

the nth term of the sequence

= 7 + 3( n - 1 )

(b) For the 1000th term

= 7 + 3 ( 1000-1 )

= 7 + ( 999 )

7 + 999 = 1006

Therefore,

the 1000th term = 1006

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2 years ago
Choose the kind(s) of symmetry. (Select all that apply.)
LenaWriter [7]

Answer:

The kinds of symmetry the letter H has Point , Line and plane symmetry

Explanation:

Point symmetry states that when every part has a matching part:

the same distance from the central point, but in the opposite direction.

Line of symmetry states that it creates two congruent figures that are mirror images of each other

Plane symmetry states a crystal that divides the crystal into two parts that are mirror images of each other.

Given letter H has line of symmetry because the letter folded in half in any way with the parts matching up.

Also, H has plane and Point Symmetry.



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Directions: Select all the correct answers.
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The correct answer is C and D .
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