3 years ago

Which of the following is not a quadratic

Mathematics

1 answer:

In-s [12.5K]3 years ago

7 0

Answer:

la b

Step-by-step explanation:

las funciones adra tienen solo 2 funciones, esta tienen cubico el4

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A radio is being discounted 30%. If the sale price of the radio is $29.82, what was the original price of the radio?

meriva

Answer: $42.60

Step-by-step explanation:

Original price: p

Discount: 30%

Sale price: 29.82

p x 0.7 = 29.82

p = 29.82/0.7 = 42.60

3 0

3 years ago

The area of the triangle below is 33.12 square inches what is the length of the base

den301095 [7]

Answer:12.72

Step-by-step explanation:

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

4 years ago

I neeed this now asap

son4ous [18]

Answer:

What type of math this is text me back!

Step-by-step explanation:

3 0

2 years ago

How many numbers between 1 and 1000 do not contain the digits 8, and 9 ?

sammy [17]

Answer:

998

Step-by-step explanation:

I haven't included the 1 or the 1000

6 0

3 years ago

Read 2 more answers