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11Alexandr11 [23.1K]
3 years ago
11

Please help explanation if possible

Mathematics
1 answer:
spayn [35]3 years ago
8 0

Answer:  2 goes in the box

The solid boundary line equation is y = 2. The shaded region consists of this line and everything below it, which is describing y \le 2. So y can be 2 or it can be smaller than 2.

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Choose the step in which the first error occurs. Then evaluate the expression to find the correct answer.
Umnica [9.8K]

Answer:

The first error occurs in Step 3

The value of the equation is -69

Step-by-step explanation:

The error is that 3-0+(-72) is actually supposed to be 3-0-72 because once you multiply the positive 36 and the negative 2, the equation automatically becomes negative.

8 0
3 years ago
Simplify the following expression in your notebook. Select the correct answer. 7 - 3[(n 3 + 8n) ÷ (-n) + 9n 2]
Daniel [21]
Simplify the following:
7 - 3 (9×2 n + (3 n + 8 n)/(-n))

3 n + 8 n = 11 n:
7 - 3 (9×2 n + (11 n)/(-n))

(11 n)/(-n) = n/n×11/(-1) = 11/(-1):
7 - 3 (9 2 n + 11/(-1))

Multiply numerator and denominator of 11/(-1) by -1:
7 - 3 (9 2 n + -11)

9×2 = 18:
7 - 3 (18 n - 11)

-3 (18 n - 11) = 33 - 54 n:
33 - 54 n + 7

Add like terms. 7 + 33 = 40:
40 - 54 n

Factor 2 out of 40 - 54 n:

Answer: 2 (20 - 27 n)
8 0
3 years ago
Simplify and write your<br> answer in standard form<br> 5x(-3x + 8) - 4x + 7
yawa3891 [41]

Answer:

-15x^2 + 36x + 7

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
Triangle ABC has vertices A (-2, -1), B (-2, 5) and C (1, -1). Calculate the perimeter of the triangle.​
poizon [28]

Answer:

23 times 48

Step-by-step explanation:

56 is equal 2 34

7 0
3 years ago
Please help me thanks!
IrinaK [193]

Answer:

See below ~

Step-by-step explanation:

Formula for area of a triangle :

<u><em>Area (triangle) = 1/2 × base × height</em></u>

<u><em /></u>

=============================================================

Solving :

<u>Triangle 1 (Top Left)</u>

⇒ Area = 1/2 × 11 × 3

⇒ Area = 33/2

⇒ Area = 16.5 in²

<u>Triangle 2 (Top Right)</u>

⇒ Area = 1/2 × 8 × 7.2

⇒ Area = 4 × 7.2

⇒ Area = 28.8 cm²

<u>Triangle 3 (Bottom Left)</u>

⇒ Area = 1/2 × (5.5 + 5) × 10.4

⇒ Area = 10.5 × 10.4

⇒ Area = 109.2 m²

<u>Triangle 4 (Bottom Right)</u>

⇒ Area = 1/2 × (2 + 7) × 5.5

⇒ Area =  9 × 2.75

⇒ Area = 24.75 in²

4 0
2 years ago
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