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SpyIntel [72]
3 years ago
15

Helppppp

Mathematics
1 answer:
sasho [114]3 years ago
8 0

Answer:

186.5 + 2x

Step-by-step explanation:

First, radify 25. Luckily it's a perfect square so it will be 5.

Second, divide within the parentheses. You're expression should look like this.

(93-5+x+42/8)2

Divide 42/8. The decimal form would be 5.25, while the fraction should be 5 1/4.

Third, solve within the parentheses from left to right. Right now you're expression should look like this:

(93-5+x+5.25)2

Add all like terms

93-5+5.25=93.25

Fourth, multiply. Right now the expression should look like this:

(93.25 + x) 2

186.5 + 2x

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Simplify 5 to the tenth power over 5 to the sixth power
natita [175]

Answer:

625

Step-by-step explanation:

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3 years ago
What are the domain and range for the exponential function f(x)=ab^x , where b is a positive real number not equal to 1 and a &g
motikmotik

Answer: Domain (-∞,∞) ; range: (0,∞)


Step-by-step explanation:

1. The exponential functions with the form f(x)=ab^{x} has domain of all real numbers, becaure there is no values in the set of real number for which the value of x is not define. When x approches to ∞, the function approches to ∞.

2. When x approches to -∞, the function approches to 0 but never touches it. This means  that y is always greater than zero (y>0). Therefore, the range of the function is (0,∞).

3 0
3 years ago
If You Had Three Wishes, What Would You Wish For?
yawa3891 [41]

Answer:

I would wish to be the brainliest, I would wish for more points, and i would wish for more people to answer my questions

Step-by-step explanation:

thats only for brainly though

4 0
3 years ago
[10] In the following given system, determine a matrix A and vector b so that the system can be represented as a matrix equation
irina1246 [14]

Answer:

y=-\frac{158}{579}

Step-by-step explanation:

To find the matrix A, took all the numeric coefficient of the variables, the first column is for x, the second column for y, the third column for z and the last column for w:

A=\left[\begin{array}{cccc}1&1&2&2\\-7&-3&5&-8\\4&1&1&1\\3&7&-1&1\end{array}\right]

And the vector B is formed with the solution of each equation of the system:b=\left[\begin{array}{c}3\\-3\\6\\1\end{array}\right]

To apply the Cramer's rule, take the matrix A and replace the column assigned to the variable that you need to solve with the vector b, in this case, that would be the second column. This new matrix is going to be called A_{2}.

A_{2}=\left[\begin{array}{cccc}1&3&2&2\\-7&-3&5&-8\\4&6&1&1\\3&1&-1&1\end{array}\right]

The value of y using Cramer's rule is:

y=\frac{det(A_{2}) }{det(A)}

Find the value of the determinant of each matrix, and divide:

y==\frac{\left|\begin{array}{cccc}1&3&2&2\\-7&-3&5&-8\\4&6&1&1\\3&1&-1&1\end{array}\right|}{\left|\begin{array}{cccc}1&1&2&2\\-7&-3&5&-8\\4&1&1&1\\3&7&-1&1\end{array}\right|} =\frac{158}{-579}

y=-\frac{158}{579}

7 0
4 years ago
Tom's Tent Rental charges a flat rate of $100 per day plus $10 for each hour the tent is used. If the number of hours is represe
balu736 [363]
100 + 10h

The 100 represents the $100 and the 10h represents the $10 times the hours 
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3 years ago
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