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3 years ago

PLS HELP WILL MARK BRAINLIEST TO THE BEST ANSWER !

Mathematics

1 answer:

il63 [147K]3 years ago

6 0

Answer:

1. 2x+5

2. 20x-8y

3.2a+2b+3b+sqrt(2)

Step-by-step explanation:

1. 2/5x+1 is one side, and it's a regular pentagon, so it's 5(2/5x+1). 5(2/5x+1)=2x+5, so the perimeter is 2x+5.

2.due to all the angles of the cross the same, they must be right angles, and because of this, we can assume that the cross can be made a square with the same length and width, and that the extra part is equivalent to the sides, so we can do 8(5/2x-y). 8(5/2x-y)=20x-8y, which means 20x-8y is the answer.

3. due to the congruent sides, we know this right triangle is a 45 45 90 triangle, which means we know that the hypotenuse of triangle a is 3b/2, and furthermore triangle a is also a 45 45 90 triangle so its legs are (3b/2)*sqrt(2). when adding all the sides together, we get 2((2a-b)/2)+2(3b/2)+2(3b/2*sqrt(2)) =2a-b+3b+3b*sqrt(2)=2a+2b+3b+sqrt(2), thus the answer is 2a+2b+3b+sqrt(2).

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tatyana61 [14]

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Step-by-step explanation:

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3 years ago

Suppose Paul went to the store and bought 4 peaches to add to the basket.Write two new numerical expressions to represent the to

sasho [114]

Answer:

1. n + 4

2. x(n) + 4

Step-by-step explanation:

The two solutions were arrived at based on the following :

1. The total number of fruit, irrespective of the kind or type.

In this case, let the number of fruit be n.

Adding 4 peaches gives: n + 4 fruits.

2. The second expression takes into account the peaches only.

This times around, let the total fruits be n.

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The number of peaches is the fraction of peaches multiplied by the total number of fruit like this: xn

However, 4 peaches are added, therefore, the total number will be xn+4

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