2 years ago

Hellllllllllppppppppppp please

Mathematics

1 answer:

Nina [5.8K]2 years ago

8 0

Answer:

As x decreases in value.f(x) decreases in value.......

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Which of the following is equivalent to 0 equals 3 x squared minus 12 x minus 15 when completing the square?

skad [1K]

Answer:

x = 5, -1

Step-by-step explanation:

0 = 3x^2 - 12x - 15 or

3x^2 - 12x - 15 = 0

By solving for x, use the Quadratic Formula.

… x = 5 and/or -1

8 0

2 years ago

Credit Cards have 16 digit numbers, of which the first 15 digits identify the credit card and the sixteenth digit is the check d

puteri [66]

The answer is B. 3 (10^13)

5 0

2 years ago

A pink mixture uses 4 cups of white paint for every 3 cups of red paint

Viefleur [7K]

Answer:

its a 4:3 ratio, you couldve got pink paint at first

Step-by-step explanation:

what else did you want to know,

3 0

3 years ago

Can someone pls help for brainlest

trapecia [35]

Answer:

The area of the shaded region= 37.68

Step-by-step explanation:

Area of the outer circle= 2* 3.14* 36 (Area of the circle=2 $\pi$ r)

=113.04

Area of the inner circle=2*3.14* 12

=75.36

Area of the shaded region= Area of the outer circle- Area of the inner circle

= 113.04- 75.36

=37.68

5 0

2 years ago

Consider the following planes. 3x − 2y + z = 1, 2x + y − 3z = 3

prisoha [69]

Solve for any of the variables; for instance, $z$ :

$z=1-3x+2y$

$z=-\dfrac{3-2x-y}3$

Then

$1-3x+2y=-\dfrac{3-2x-y}3\implies11x-5y=6\implies\begin{cases}y=\frac{11x-6}5\\z=1-3x+\frac{22x-12}5\end{cases}$

Let $x=t$ ; then the intersection is given by the vector-valued function

$\vec r(t)=\left(t,\dfrac{11t-6}5,1-3t+\dfrac{22t-12}5\right)$

$\vec r(t)=\left(t,\dfrac{11t-6}5,\dfrac{7t-7}5\right)$

3 0

2 years ago