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riadik2000 [5.3K]
3 years ago
11

(a) What is wrong with the following equation?

Mathematics
1 answer:
KengaRu [80]3 years ago
6 0
The numerator and denominator need parentheses for clarity.
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What is the product?<br> (-3s+2t)(4s-t)
Marizza181 [45]

Answer:

12s² + 11st - 2t²

Step-by-step explanation:

Each term in the second factor is multiplied by each term in the first factor, that is

- 3s(4s - t) + 2t(4s - t) ← distribute both parenthesis

= - 12s³ + 3st + 8st - 2t² ← collect like terms

= - 12s² + 11st - 2t²

5 0
3 years ago
Read 2 more answers
Describe several real world situations can be modeled by equations of the form Y equals MX plus be or Y equals MX explain how th
lara [203]

The linear equation represents y = mx + b describes several real world situations such as

  • Relation between printer and ink cartridges,
  • Relationship between number of songs and how much is left on the card.

<u>Step-by-step explanation</u>:

Linear equations  y = mx + b.  

m is your rate of change.

b is your constant. This is the initial value of y. The value of y when x is 0.

Finally, y is the thing that depends on x.

Oh right, examples:  

  •  I buy a printer for $100 and the ink cartridges cost $25 each. The relationship between ink cartridges and total cost.

total cost = 25(cartridges I buy) + 100 or y = 25x + 100

  • I get a $100 iTunes gift card for my birthday and then start buying $1 songs. The relationship between the number of songs I buy and how much is left on the card

amount left on card = -$1(songs bought) + 100 or y = -x +100

5 0
3 years ago
What is the tangent ratio for
kirill115 [55]

Answer:

The answer to your question is letter A (2/3)

Step-by-step explanation:

Formula

tangent Ф = \frac{opposite side}{adjacent side}

For A

opposite side = 2

adjacent side = 3

Substitution

tan Ф = \frac{2}{3}

Result

tan Ф = \frac{2}{3}

3 0
3 years ago
Read 2 more answers
2.4.5
worty [1.4K]

Answer:

150 miles

Step-by-step explanation:

let m represent miles

$70 + .70m = $40 + .90m

subtract 40 from each side

$30 + .70m = .90m

subtract .70m from each side

$30 = .20m

divide both sides by .20

150 = m

5 0
3 years ago
Nth term of 4,10,16,22
sergij07 [2.7K]
The answer is a(n) = 6n - 2
3 0
3 years ago
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