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elena-14-01-66 [18.8K]
3 years ago
12

Which algebraic expression is equivalent to the expression below?

Mathematics
2 answers:
Wewaii [24]3 years ago
7 0
I believe it is 19x + 2 (A)
Katena32 [7]3 years ago
3 0

Answer: A. 19x + 2

Step-by-step explanation:

You might be interested in
A hyperbola centered at the origin has verticies at (add or subtract square root of 61,0 and foci at (add or subtract square roo
deff fn [24]

Answer:

\frac{x^2}{61}-\frac{y^2}{37}  =1

Step-by-step explanation:

The standard equation of a hyperbola is given by:

\frac{(x-h)^2}{a^2} -\frac{(y-k)^2}{b^2} =1

where (h, k) is the center, the vertex is at (h ± a, k), the foci is at (h ± c, k) and c² = a² + b²

Since the hyperbola is centered at the origin, hence (h, k) = (0, 0)

The vertices is (h ± a, k) = (±√61, 0). Therefore a = √61

The foci is (h ± c, k) = (±√98, 0). Therefore c = √98

Hence:

c² = a² + b²

(√98)² = (√61)² + b²

98 = 61 + b²

b² = 37

b = √37

Hence the equation of the hyperbola is:

\frac{x^2}{61}-\frac{y^2}{37}  =1

6 0
3 years ago
US $1.00 = TT$ 6.80, <br> Convert TT$1 020.00 to US$
hram777 [196]

The convert of TT$1 020.00 to US$150.

Given that,

  • US $1.00 should be equivalent to the TT $6.80.
  • Now we have to convert TT $1,020 to US $.

So, the value after converting should come

= $1,020 ÷ $6.80

= $150

Therefore we can conclude that the convert of TT$1 020.00 to US$150.

Learn more: brainly.com/question/2451390

5 0
3 years ago
Calculeaza valorile lui a si b a+b=42 a impartit la b=5
a_sh-v [17]
A + 5 = 42
-5 -5
A = 37
5 0
3 years ago
Cos(44-A). cos(44+A) + cos (46 -A).cos(46 +A) = cos2A​
Verdich [7]

Answer:

-0.0777026243 A^5

Step-by-step explanation:

5 0
3 years ago
2) The following table presents the probability distribution of the number of vacations X taken last year for a randomly chosen
algol [13]

The mean of the discrete probability distribution is of 1.28.

<h3>What is the mean of a discrete distribution?</h3>

The expected value of a discrete distribution is given by the <u>sum of each outcome multiplied by it's respective probability</u>.

Then, considering the given distribution, the mean is given by:

E(X) = 0(0.13) + 1(0.61) + 2(0.15) + 3(0.07) + 4(0.04) = 1.28.

More can be learned about the mean of a discrete probability distribution at brainly.com/question/24855677

3 0
2 years ago
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