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Olegator [25]
2 years ago
15

Multiple choice. A square floor mat has a side length of 22 m.

Mathematics
2 answers:
Usimov [2.4K]2 years ago
6 0

Answer:

C

Step-by-step explanation:

.........................

8_murik_8 [283]2 years ago
6 0

Answer:

c

Step-by-step explanation:I think the answer might be C. because they have asked for the area and the formulae is side multiply by side.

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3 Find y if the slope between ( – 7, y) and (1, 13) is 3/4​
mafiozo [28]

Step-by-step explanation:

slope \:  =  \frac{y2  - y1}{x2 - x1}  =  \frac{3}{4}

point 1 ( -7,y)

point 2 (1,13)

\frac{13 - y1}{1 - ( - 7)}  =  \frac{3}{4}

\frac{13 - y1}{8}  =  \frac{3}{4}

13 - y2 =  \frac{8 \times 3}{4}  = 6

y2 = 13 - 6 = 7

y = 7

3 0
3 years ago
Find the sum of the squares of the roots of 3x^2 + 4x + 12 = 0
Contact [7]

Answer:

-56/9

Step-by-step explanation:

Let p and q be the roots of the equation.

So, here's how we're gonna work it out:

{p}^{2}  +  {q}^{2}  =  \\  {p}^{2}  +  {q}^{2} +2 pq - 2pq =   \\ ( {p}^{2}  +2pq +   {q}^{2}) - 2pq =  \\  {(p + q)}^{2}  - 2pq

Vieta's formulas give us the sum and the product of the roots of a quadratic equation. Using them we obtain:

  • p + q = -b / a = - 4 / 3
  • p × q = c / a = 12 / 3 = 4

{(p + q)}^{2}  - 2pq =  \\  {( -  \frac{ 4}{3} )}^{2}  - 2 \times 4 =  \frac{16}{9 }  - 8 =  \\  \frac{16 - 72}{9}  = - \frac{56}{9}

4 0
3 years ago
Which of the following expressions are equivalent to x + 2 − x ?
Paraphin [41]

it would be 0, because in the origin equations, the d's cancel out since it's x-x, only 2 would be left, therefore the correct answer is A since 0+2=2

6 0
3 years ago
The perimeter of a square is 252 feet how long is each side
gogolik [260]

Answer:

63 feet

Step-by-step explanation:

perimeter is the sum of all four sides and, since it's a square then all sides are equal

to find how long each side is divide 252 by 4

252÷4 = 63

6 0
2 years ago
Read 2 more answers
A game board has 9 cards, and 3 say WIN. Michal picks 2 cards without replacing the first What is the probability that neither s
s2008m [1.1K]

Answer:

since there are 8 cards, and 2 say WIN, 6 of the 8 cards don't say WIN. You can express this as a ratio of 6:8 which equals 3:4, so the probability that neither says win is 75%.

Step-by-step explanation:

6 0
3 years ago
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