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trapecia [35]
3 years ago
14

Evaluate z^2−3 z+4 , when z=−4

Mathematics
2 answers:
taurus [48]3 years ago
7 0
It should be -19

I got the answer by plugging it into Desmos scientific calculator.
Maru [420]3 years ago
6 0

Answer:

8

Step-by-step explanation:

=z²-3z+4 when z is 4

=4²-3(4)+4

=16-12+4

=8

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A sequence is defined recursively by f(1)=16 and f(n)= f(n-1)+2n. Find f(4)
lord [1]
Hi,

f(1)=16
f(2)=f(1)+2*2=16+4=20
f(3)=f(2)+2*3=20+6=26
f(4)=f(3)+2*4=26+8=34

8 0
3 years ago
HELLLLLLPPPPPPPPPPPP
umka2103 [35]

Answer:

y=2x+7

Step-by-step explanation:

If you plug in the x and y values, they are correct.

3 0
3 years ago
Read 2 more answers
If you cut a 3 3/4 ft. length of wire into pieces that 1/4 ft. long, how many pieces of wire will you have?
lukranit [14]

Answer:

I think it would be 15

Step-by-step explanation:

6 0
3 years ago
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Marcus earns money from feeding cats and answering emails. He earns $7 a week for each cat he feeds and $0.20 for each email he
Dmitry_Shevchenko [17]
A.
7 times number of cats=pay
if pay=49 then
7 times number of cats=49
divide both sides by 7
number of cats=7

da equaton can be
c=number of cats
7c=49

he fed 7 cats


B.

7c=49
divide both sides by 7
equality property of division
(7c)/7=49/7
math fact
(7/7)c=7
1c=7
identity property of division
c=7
identity property of multiplication
7 cats

C. 7 cats
4 0
3 years ago
If elephant grass grows <br> 2 1/5 inches a day, how many inches will it grow in 6 days?
wel

Answer:

13.2 or 13 1/5 inches

Step-by-step explanation:

2 1/5 in/day * 6 days = 13.2 or 13 1/5 inches

OR

  2 1/5 in

+ 2 1/5 in

+ 2 1/5 in

+ 2 1/5 in

+ 2 1/5 in

+ 2 1/5 in

------------

13 1/5 in

6 0
3 years ago
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