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Temka [501]
3 years ago
13

Evaluate the expression for x = -3 and y = 4 3x2 – 2xy

Mathematics
1 answer:
Lana71 [14]3 years ago
7 0

Answer: -36 is your answer

Step-by-step explanation:

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Galina-37 [17]

L= 1/8
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H=1/8
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O or L=3/8
S or C=1/4
S or C or O=1/2
OR mean to add.

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I need to find weather the ordered pair is a solution of the system of linear equation
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In exercise 3 (2,6) means that x=2 and y=6
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3 years ago
Find the slope. Please reply if you can help
aliina [53]

Answer:

1/1 because you go up 1 and over 1

7 0
3 years ago
Read 2 more answers
PLEASE HELP? I need help ASAP heh.
spayn [35]

Answer:

5/12

Step-by-step explanation:

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5 shaded

5shaded to 12 total

5:12

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5/12

5 0
2 years ago
Read 2 more answers
While training for a marathon, Jeff wants to increase the number of miles he runs each day. On the first day of training, Jeff r
user100 [1]

Answer:

The series is 5 , 6 , 7 , 8 , 9 , 10 , 11

Step-by-step explanation:

* Lets revise the arithmetic series

- In the arithmetic series there is a constant difference between

 each two consecutive numbers

- Ex:

# 2  ,  5  ,  8  ,  11  ,  ……………………….  (constant difference is 3)

# 5  ,  10  ,  15  ,  20  ,  …………………………  (constant difference is 5)

# 12  ,  10  ,  8  ,  6  ,  ……………………………  (constant difference is -2)

* General term (nth term) of an Arithmetic series:

- If the first term is a and the common diffidence is d, then

 U1 = a  ,  U2  = a + d  ,  U3  = a + 2d  ,  U4 = a + 3d  ,  U5 = a + 4d

- So the nth term is Un = a + (n – 1)d, where n is the position of the

 number in the series

* Lets solve the problem

- Jeff wants to increase the number of miles he runs each day

∴ He will add the initial value by constant number each day

- He plans on increasing the number of miles he runs a day by 1

∴ The constant value is 1 mile

-  On the first day of training, Jeff runs 5 miles

∴ The first value is 5 miles

∴ The series is arithmetic

∵ a = 5 , d = 1

- He do that for the remainder of the week

∵ The week has 7 days

∴ The series has 7 terms

∵ The rule of the series is Un = a + (n - 1)d

∵ a = 5 and d = 1

∴ Un = 5 + (n - 1)(1)

∴ Un = 5 + n - 1

∴ Un = 4 + n ⇒ n is the position of the number

- Substitute n from 1 to 7 to find the series

∴ The series is 5 , 6 , 7 , 8 , 9 , 10 , 11

6 0
3 years ago
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