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kati45 [8]
3 years ago
14

The office and the living room in a tiny house share a wall. The area of the office is 28 square feet. The area of the living ro

om is 63 square feet. The expression 28+63 represents the total area in square feet.
Which of the following expressions also show the total area of the two rooms? Choose ALL that apply. 7 multiplied by 4 + 7 multiplied by 9 7(4+9) 9(4+7) 9 multiplied by 4+ 9 multiplied by 7
Mathematics
2 answers:
kakasveta [241]3 years ago
5 0

Answer:

7 x 4 + 7 x 9, 7(4+9)

Step-by-step explanation:

Mandarinka [93]3 years ago
3 0

Answer: The 2 answers are

7・4 + 7・9

and

7(4+9)

Hope this helps!✦

Step-by-step explanation:

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Question 11<br><br> (-10) + (10) = ??<br> A)20<br> B)-20<br> C)-0<br> D)0
Nastasia [14]

Answer:

0

Step-by-step explanation:

-10 + 10

-10 and 10 are additive inverses, so when we add them, it is equal to zero

-10 + 10 = 0

6 0
3 years ago
The table below represents the atmospheric temperature at a location as a function of the altitude:
RSB [31]

from x15 to x 25 is 4 - -16 = -20 degree change

25 -15 = 10000 feet

-20/10 = -2 degrees every 1000 feet


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3 years ago
What is the slope of the line that passes through the pair of points (3,-4) and (5,-7).
maria [59]

The correct answer is C. -3/2

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3 years ago
A dog is leashed to the corner of a house with a 20 ft long leash. How much running area does the dog have? Round your answer to
11111nata11111 [884]

Answer:

The dog's running area is approximately 942 feet².

Step-by-step explanation:

The dog is leashed to a fixed point, the leash has a length of 20 ft, therefore he can rotate around that point at the maximum distance equal to the length of the leash. This pattern forms a circle, but there is an obstruction, which is the corner of the house. This obstruction takes an arc of the original circle, so the running area of the dog is the area of the whole circle minus the area of the arc formed by the corner of the house.

\text{dog's area} = \text{circle's area} - \text{arc's area}\\\\\text{dog's area} = pi*(20^2) - \frac{90}{360}*pi*(20^2)\\\\\text{dog's area} = \frac{270}{360}*pi*(400)\\\\\text{dog's area} = 942.477\text{ feet}^2

The dog's running area is approximately 942 feet².

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3 years ago
What is the domain of, f (x) = -2 (x+5)^2 -3
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The domain of any polynomial is
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