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3 years ago

What is the value of x? O x = 2 0 x = 3 X X=4 x = 6 a to N

Mathematics

1 answer:

Dmitrij [34]3 years ago

8 0

Answer: x=3

Step-by-step explanation:

Took the assignment

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A TV has a listed price of $695.95 before tax. If the sales tax rate is 7.75%, find the total cost of the TV with sales tax incl

vivado [14]

Answer:

7.75%/100×695.95=53.93

695.95+53.93=749.88

answer:749.90

6 0

3 years ago

Write an equation in slope-intercept form for the line with slope -1/4 and y-intercept 9

vichka [17]

The answer is y=-1/4x+9

3 0

3 years ago

Read 2 more answers

X/2 is greater than or equal to -4

irga5000 [103]

$\frac{x}{2}$ ≥-4

Pretend the greater than or equal to sign is an equal sign, we will substitute it back in later.

x/2 = -4
Multiply both sides by 2 to get x alone
x = -8
Substitute the greater than or equal to sign back in and voila!
x≥-8

3 0

3 years ago

Describe the pattern in the sequence. Find the next two terms of the difference -2, -5,-8, -11

PSYCHO15rus [73]

Hello from MrBillDoesMath!

Answer:

"-3" is added to a sequence member to get the next number. This next two terms are -14 and -17

Discussion:

Note that -2 -3 = -5 and

-5 -3 = -8 and

-8 - 3 = -11

"-3" is added to a sequence member to get the next number. This implies that the next two terms are -11 -3 = -14 and -14 -3 = -17

Regards,

MrB

5 0

3 years ago

Use Cramer's Rule to solve the following system: –2x – 6y = –26 5x + 2y = 13

andriy [413]

$\bf \begin{cases}
-2x-6y&=-26\\
\quad 5x+2y&=13
\end{cases}\stackrel{\textit{determinant of the coefficients}}{D=
\begin{bmatrix}
-2&-6\\5&2
\end{bmatrix}}\implies (-4)-(-30)
\\\\\\
D=-4+30\implies \boxed{D=26}\\\\
-------------------------------\\\\$

$\bf x=\cfrac{D_x}{D}\implies x=\cfrac{
\begin{bmatrix}
\boxed{-26}&-6\\\\ \boxed{13}&2
\end{bmatrix}}{D}\implies x=\cfrac{(-52)-(-78)}{26}
\\\\\\
x=\cfrac{-52+78}{26}\implies x=\cfrac{26}{26}\implies \boxed{x=1}\\\\
-------------------------------\\\\
y=\cfrac{D_y}{D}\implies y=\cfrac{
\begin{bmatrix}
-2&\boxed{-26}\\\\ 5&\boxed{13}
\end{bmatrix}}{D}\implies y=\cfrac{(-26)-(-130)}{26}
\\\\\\
y=\cfrac{-26+130}{26}\implies y=\cfrac{104}{26}\implies \boxed{y=4}$

4 0

3 years ago