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never [62]
3 years ago
15

A square has a side length of (x + 8) feet long. Which expression(s) represent(s) the perimeter of the square, in square feet? S

ELECT ALL THAT APPLY. Need explanation.

Mathematics
1 answer:
dimaraw [331]3 years ago
3 0

Answer:

D and E

Step-by-step explanation:

Perimeter = 4s

4(x + 8)

4x + 32

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When considering order of operations (PEMDAS), addition will ALWAYS come before subtraction.
Sergeeva-Olga [200]

Parenthises

Exponent

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The answer is true because it comes before subtraction in the phrase PEMDAS.

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3 years ago
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HELP PLEASE
Hoochie [10]
If you had values instead of algebraic expressions, you would find the area of the patio and subtract that from the area of the yard. Even though you don't have values, you can still find the area and subtract by expanding and simplifying:
(8x + 2)(6x + 3)
8x × 6x = 48x²
8x × 3 = 24x
2 × 6x = 12x
2 × 3 = 6
So you get 48x² + 36x + 6 as your area of the yard

(x + 5)(3x + 1)
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x × 1 = x
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So the area of the patio is 3x² + 16x + 5

(48x² + 36x + 6) - (3x² + 16x + 5)
48x² - 3x² = 45x²
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So your answer is D. 45x² + 20x + 1. I hope this helps!

6 0
3 years ago
Can someone help please ?
forsale [732]

Answer:

5 is the hight

Step-by-step explanation:

3 0
2 years ago
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Lucia has 3.5 hours left in her workday as a car mechanic. Lucia needs 1/2 of an hour to complete one oil change.
MatroZZZ [7]

Answer: So Lucía has 3.5 hours left, and need 1/2 of an hour (or 0.5 hours) to do one oil change.

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3.5/0.5 = 7

So she can do 7 oil changes in 3.5 hours.

b) If she can complete two car inspections in the same amount of time it takes her to complete one oil change, then she can do two car inspections in 0.5 hours.

2*car inspections = 0.5 hours

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then one car inspection will take 0.5/2 = 0.25 hours.

c) Two ways to solve this:

1) Do the same that we did in a), this is: 3.5/0.25 = 14

she can do 14 car inspections.

2) If in 3.5 hours, she can do 7 oil changes, and in the time she does an oil change, she can do two car inspections, then in 3.5 hours she can do 7*2 car inspections, and 7*2 = 14

5 0
3 years ago
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If f(x) and its inverse function, f(x), are both plotted on the same coordinate plane, where is their point of intersection?
Tcecarenko [31]

Answer:

(2,2)

Step-by-step explanation:

The graph of a function and that of its inverse should be always symmetric around the line y = x (goes at 45 degrees and crosses the origin of coordinates).

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The only option shown where x and y have the same numerical value is the third listed option : (2,2)

7 0
3 years ago
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