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tangare [24]
3 years ago
6

Write an expression that represents the perimeter of the football field. Let x represent the length of the football field. Inclu

de parentheses in your expression. Next, write an equivalent expression that does not include parentheses. What property or properties did you use to simplify? Explain.
The width of the field is seventy yards shorter than the length.

Can anybody help me? I'm stuck.
Mathematics
1 answer:
dlinn [17]3 years ago
6 0
Expression with parenthesis: = 2 ( l + w)
Expression without parenthesis = 2l + 2w

The property we used is known as "Distributive Property"

Let, width = w
Length = w + 70

Perimeter would be: P = 2(w+70+w)
p = 2(2w+70)
p = 4w + 140

Hope this helps!
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In the last two years, Mari grew 2 1/4 inches, Kim grew 2.4 inches, and Kate grew 2 1/8 inches. Write the amounts they grew in o
Gennadij [26K]
First, let's turn the fractions into decimal form so you can see the answer, more clearly. 
2 \frac{1}{4} = 2.25
2.4 = 2.4
2 \frac{1}{8} = 2.125

Now, after looking at the decimals, we can see which decimals are the biggest. They would order, from least to greatest, like this. 
1)  2.4
2) 2.25
3) 2.125

I hope this helps!

6 0
3 years ago
Read 2 more answers
When vector is added to vector , the resultant is vector such that . This resultant vector has components Rx=Ax+BxRx=Ax+Bx and R
SVETLANKA909090 [29]

Answer:

a. When vector is added to vector , the resultant is vector such that its magnitude and direction is proportional to the resultant magnitude and direction of the component vectors.

b. ∅ = tan^{-1}(Rx/Ry)

Step-by-step explanation:

Vectors are used to express physical quantities with magnitude and direction. Vectors can be added by the parallelogram method or the triangular method of addition. the magnitude and direction of the resultant vector is usually proportional to the magnitude and direction of the component vectors.

The direction of the angle is found as

tan∅ = Rx/Ry

∅ = tan^{-1}(Rx/Ry)

6 0
3 years ago
A car and truck are 540 miles apart. The two vehicles start driving toward Each other at the same time. The car drives at a spee
mina [271]

Answer:they would meet after 4.5 hours

Step-by-step explanation:

At the point where they will both meet, they would have covered a total distance of 540 miles.

Let t represent the time it will take the car and the truck to meet.

Distance = speed × time

The car drives at a speed of 65 miles per hour. Distance covered by the car in t hours would be

65 × t = 65t

The truck travels at a speed of 55 miles per hour.

Distance covered by the truck in t hours would be

55 × t = 55t

Therefore,. 65t + 55t = 540

120t = 540

t = 540/120 = 4.5 hours

3 0
3 years ago
Write 2603094 using exponents?
Artemon [7]
2*10^6 + 6*10^5 + 3*10^3 +9*10^1 +4*10^0

see expanded form is adding the digits together. and it would be what ever one number is times 10 to the power of how many digits are after that number. you skip the 0's though. hope this helps
7 0
3 years ago
Read 2 more answers
The inverse of p q is: pq pq qp pq qp
Galina-37 [17]
Hi there!

The inverse of pq is qp.
qp is the opposite of pq.

Hope this helps!
7 0
3 years ago
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