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nasty-shy [4]
3 years ago
11

|9t|=81 answer the equation​

Mathematics
2 answers:
Dimas [21]3 years ago
8 0

Answer:

9, or -9

Step-by-step explanation:

9t=81 or -81

t=9 or -9

MrMuchimi3 years ago
7 0

Answer:

t=9\\t=-9

Step-by-step explanation:

|9t|=81

9t=81\\9t=-81

t=81 \div 9\\t=-81 \div 9

t=9\\t=-9

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sweet-ann [11.9K]

Answer:

2{x}^{ \frac{3}{2} }

Step-by-step explanation:

We want to simplify:

\frac{ {x}^{2} +  {x}^{2}  }{ {x}^{ \frac{1}{2} } }

We first simplify the numerator to obtain:

\frac{ 2{x}^{2}  }{ {x}^{ \frac{1}{2} } }

Next the quotient rule:

\frac{ {a}^{m} }{ {a}^{n} }  =  {a}^{m - n}

We apply this quotient rule to get:

\frac{ 2{x}^{2}  }{ {x}^{ \frac{1}{2} } }  = 2{x}^{2 -  \frac{1}{2} }

Simplify exponents:

\frac{ 2{x}^{2}  }{ {x}^{ \frac{1}{2} } }  = 2{x}^{ \frac{3}{2} }

Therefore the given expresion simplifies to:

2{x}^{ \frac{3}{2} }

4 0
3 years ago
Christopher sold his dinette set for $245 through an online site, which charged him 9% of the selling price as commission. what
sasho [114]

Answer:

$22.05

Step-by-step explanation:

If a product has a sales commission, then one must divide the commission percent by (100) to convert the percent to a decimal. Then multiply the result by the price of the product to find the amount of money that will be given as a commission.

Applying this knowledge to the given problem, one must divide (9%) by (100) to convert to decimal form,

9% / 100 = 0.09

Now multiply the result by the price of the product (245) to find the amount given away in commission,

0.09 * 245 = 22.05

7 0
3 years ago
Which of the following is equivalent to 25x2+16−40x−64y2? Select two.
Marat540 [252]

The equivalent expression to the given expression 25x²+16−40x−64y² are; (5x-4)²−64y² and (5x−4−8y)(5x+4+8y)

<h3>Difference of two squares</h3>

According to the question:

  • We are required to determine the equivalent expression.

When we try to factorise the given expression systematically; we have;

  • 25x²+16−40x−64y² = (25x²+16−40x)−64y²

By the difference of two squares concept;

  • (25x²+16−40x) = (5x-4)²

Therefore, an equivalent expression is; (5x-4)²−64y²

Similarly, (5x-4)²−64y² is the difference of two squares and can be rewritten as; (5x−4−8y)(5x+4+8y)

Hence, we have the suggested expressions as equivalent expressions.

Learn more about equivalent expression:

brainly.com/question/2972832

3 0
2 years ago
Express (2x-4)(x+6) as a trinomial
Svetlanka [38]
Answer:
2x^2 +8x -24

Explanation:
if you use m A th Way and input the question, then press simplify, you get the answer!!
5 0
3 years ago
Determine the domain of the function. f as a function of x is equal to thirteen divided by three minus x.
Hitman42 [59]

Answer:

hello :

f(x) = 13/ (x-3)

f(x) exist : x - 3 ≠ 0

x - 3 = 0      : x = 3

the domain of the function : f  is   D  = ]-∞:3[ U] 3;+∞[




6 0
3 years ago
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