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katovenus [111]
2 years ago
12

Evaluate the expression for x =5 and y= 1 (x-7y)² pretty confused

Mathematics
2 answers:
Ghella [55]2 years ago
7 0

Answer:

49y^2+y-25=0

Step-by-step explanation:

(5_7y)^2=25-49y^2

y=25-49y^2=49y^2+y-25=0

sveticcg [70]2 years ago
5 0

Answer:

-4

Step-by-step explanation:

So since x=5 and y= 1 the new expression would be 1(5-7) to the second power. Using pemdas, 5-7 is -2. -2 to the second power is -4. negative 4 times 1 is negative 4.

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Which expression is equivalent and why?
Ivenika [448]

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Answer:

  C.  1.15x

Step-by-step explanation:

You are given the expression for the cost:

  x + 0.15x

Combining like terms, this becomes ...

  1.15x . . . . . matches choice C

3 0
2 years ago
Evaluate ( c + d ) 3 C=3 d=4
Contact [7]

Answer:

The answer is 21

Step-by-step explanation: You substitue 3 for C and 4 for D and craete the equation (3+4)3 so you add 3+4=7 and you get (7)3 which is 7 times 3 =21

8 0
3 years ago
Can y’all help me understand this
Natasha2012 [34]

Answer:

Yo teachers doing you wrong with this cryptic stuff

Step-by-step explanation:

8 0
2 years ago
Francis went to the sporting goods store and spent $75.15 on 6 items.
MArishka [77]

Answer:

$6.03

Step-by-step explanation:

The question is asking us how much each pair of socks cost. With the information we are given, we know that there are 5 pairs and that they all cost the same amount. If the total were just the 5 socks, we could easily divide the total by 5 to get the price of each pair but that's not the case. The soccer ball is included in the final cost. To overcome this, we just have to subtract the soccer ball's cost ($45) from the total.

So we subtract $45 from $75.15, giving us $30.15, the total amount of all the socks. However we need to find out how much each pair costs and there are 5 of them, so we divide 30.15 by 5. This gives us the answer, $6.03.

Each pair of socks cost $6.03.

Simpler Explanation:

  • $75.15 - $45 = $30.15
  • $30.15 / 5 = $6.03

The answer is $6.03

5 0
3 years ago
Which graph best describes this?
NemiM [27]
A, Is the answer according to my calculations.
8 0
3 years ago
Read 2 more answers
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