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Setler [38]
3 years ago
15

Evaluate this expression using the given values for x and y.

Mathematics
1 answer:
nataly862011 [7]3 years ago
5 0

Answer:

The answer is 33.

Step-by-step explanation:

4x^2 + 13 - 2y, x=3 y=8

In order to evaluate this, you just need to plug the x and y in the expression:

= 4(3)^2 + 13 - 2(8)

= 4(9) + 13 - 16

= 36 + 13 - 16

= 33

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Pedro wants to walk from the historic village to the science center. Then he will walk from the science center to the museum. If
MrRissso [65]

Answer:

5 hours

Step-by-step explanation:

Speed = 2 7/ 10 miles per hour

From the chart attached :

Distance between historic village and science center : (-4 1/2, 5 1/4) to (-4 1/2, -1 3/4)

Taking the sum of the absolute value of the y coordinate :

|5 1/4| + |-1 3/4| = 5 + 1 + 1/4 + 3/4 = 7

From science center to museum :

(-4 1/2, - 1 3/4) to (2, - 1 3/4)

Taking the sum of the absolute value of the x coordinate :

|4 1/2| + |2| = 4 + 2 + 1/2 = 6 1/2

Total distance traveled = 7 + 61/2 = 13 1/2 miles

Time taken = Distance / speed

Time taken = 13 1/2 ÷ 2 7/10

Time taken = 27/2 * 10/27

Time taken = 10/2

Time taken = 5 hours

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2 years ago
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luda_lava [24]
0.2 if 1 Mile is 5 Minutes then every 0.1 mile is 30 seconds so 1 minute would be 0.2
3 0
2 years ago
Simplify ( 1/2A + 1/2B )^2
zysi [14]
Notice that both A and B are multiplied by (1/2).

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Square the (1/2) and the (A+B) separately, and then multiply together the resulting squares:

(1/4)(A^2 + 2AB + B^2)

4 0
2 years ago
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Write an expression to describe the sequence below. Use n to represent the position of a term in the sequence, where n = 1 for t
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Answer:

+- 10n

Step-by-step explanation:

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↪  (Sorry I cant draw a table for you)

↪  Using the rules and drawing a table we get the final answer

+- 10N

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8 0
3 years ago
Why do we have to change an improper fraction to a mixed fraction​
pogonyaev

Answer:

My I don't know it is stupied!

Step-by-step explanation:

6 0
3 years ago
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