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Marina86 [1]
3 years ago
12

Ms. Johnson asked her class to write an equivalent expression to

Mathematics
1 answer:
dimulka [17.4K]3 years ago
7 0
No one got the correct answer. The answer is supposed to be 7(2d+3k-dk-1). All the coefficients are divisible by 7, thus only the integers are changed. However, the variables cannot be a factor because they do not have the same variables that all the coefficients must have.
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Help....gn l my ljvjgvohUh l
timofeeve [1]

Answer:

y-8

If Tia is 8 years younger than Annette and Annette is y years old, you just take y and subtract 8.

4 0
3 years ago
Negative three fourths plus negtive one half
Alexxandr [17]
The solution is -5/4= -1 1/4
8 0
3 years ago
Read 2 more answers
The length of a rectangle is 12 inches. The width of the rectangle is 5 inches. Mia says the perimeter is 60 in2 and the area is
larisa86 [58]

Answer:

Mia is incorrect.

Step-by-step explanation:

She confused the area and perimeter.

Area is length x width, in this case 12 x 5 = 60

Perimeter is length² × width², and in this case, it is 12² × 5² = 34

Area = 60 inches

Perimeter = 34 inches

Hope that helps and have a great day!

3 0
3 years ago
What is the side length of a square with the area of 20cm2
rodikova [14]

Answer:

S = a² => 20 = a² => a = √20 ≈ 4.5 cm

Step-by-step explanation:

5 0
3 years ago
What are the coordinates of the vertex of y=x²+4x+3?​
Travka [436]

Answer:

(-2, -1).

Step-by-step explanation:

y = x² + 4x + 3

Completing the square:

y = (x + 4/2)^2 - (4/2)^2 + 3

y = (x + 2)^2 - 4 + 3

y = (x + 2)^2 - 1.

This is vertex form and the coordinates of the vertex are (-2, -1).

4 0
3 years ago
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