Answer question "11" please!!

Answers

Answer 1

Answer: 5(7)^2x = 1650
7^2x = 330
2x log7 = log330
2x = log330/log7
x = (log330/log7)/2
x = 1.49

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Question 6 Multiple Choice Worth 1 points)(01.06 LC)Solve x - 5y = 6 for x.

Write each sum as a product of the GCF of the two numbers : 75 and 90

Answers

find factors and group common ones
75=3*5*5
90=2*3*3*5
common gropu is 3*5=15

75=15*5
90=15*6
ab+ac=a(b+c)
a is GCF
75+90
5(15)+5(6)=5(15+6)

Simplify completely the quantity 3 times x to the 4th power plus 5 times x to the 2nd power plus 2 times x all over x.the quantity 3 times x to the third power plus 5 times x plus 2 all over x
3x3 + 5x + 2
3x2 + 5x2 + 2x
3x5 + 5x3 + 2x2

Answers

Answer:

(A) $3x^3+5x+2$

Step-by-step explanation:

To Simplify: The quantity 3 times x to the 4th power plus 5 times x to the 2nd power plus 2 times x all over x.

Solution: The given statement can be easily rewritten as:

$The quantity 3 times x to the 4th power=3x^4$ ,

$5 times x to the 2nd power=5x^2$ and

$2 times x =2x$

Thus, according to the statement, the expression can be written as:

$(3x^4+5x^2+2x)/(x)$

⇒ $3x^3+5x+2$

which is the required simplified expression.

Thus,option A is correct.

Answer:

A: 3^3 + 5x + 2/x

Step-by-step explanation:

Log(8)a/2. Expand the logarithmic expression.

Answers

log(8a/2) = log8 + log a - log 2

The simple rules here are: If logarithms (as in this case) have same basis, factors inside logarithm can be written as sum of logarithms or difference between logarithms (first if factors are multiplying and second if factors are dividing)

An estimated 3 out of every 25 men are left-handed. What percent of men are left-handed?

Answers

3/25=x/100
25x=300
300/25=x
x=12%

Answer:

12%

Step-by-step explanation:

Find the solution of this system of equations. Separate the x- and y- values with a comma.X= -8+y
-11x+9y=4

Answers

$\begin{cases}x= -8+y \n -11x+9y=4 \end{cases}\n \n\begin{cases}x= -8+y \n -11 \cdot (-8+y)+9y=4 \end{cases}\n \n\begin{cases}x= -8+y \n 88-11y+9y =4 \end{cases}\n \n\begin{cases}x= -8+y \n -2y=4 -88\end{cases}\n \n$

$\begin{cases}x= -8+y \n -2y=-84 \ \ / :(-2)\end{cases}\n \n\begin{cases}x= -8+y \n y=(-84)/(-2) \end{cases}\n \n\begin{cases}x= -8+42 \n y=42 \end{cases}\n \n\begin{cases}x= 34 \n y=42 \end{cases}\n \n$

What are the possible values for x in the equation 4x²=641) x=0
2) x=4
3) x=4,-4
4) x=0,4,-4

Answers

$4x^2=64\n \n4x^2-64 =0 \ \ /:4 \n \n x^2-16 =0 \n \nx^2-4^2=0 \n \n (x-4)(x+4)=0 \n \n x-4=0 \ \ or \ \ x+4 =0 \n \n x=4 \ \ or \ \ x= -4 \n \nAnswer : \ 3) \ \ x=4,-4$

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