All categories

3 years ago

11. In how many ways can a 5-question multiple choice quiz be

2 answers:

7 0

5 questions times 4 choices = 20 possibilities. However you should never leave anything blank because even a guess can possibly be the right answer

hichkok12 [17]3 years ago

4 0

Answer: yes if you want to look lazy

So noo you can't

Step-by-step explanation:

You might be interested in

A truck that is 11 feet tall and 7 feet wide is traveling under an arch. The arch can be modeled by:

Kryger [21]

Answer:

Yes

8 ft

Step-by-step explanation:

The equation of the arch is

$y=-0.0625x^2+1.25x+5.75$

Differentiating with respect to $x$ we get

$\dfrac{dy}{dx}=-2\times 0.0625x+1.25=-0.125x+1.25$

Equating with zero

$0=-0.125x+1.25\\\Rightarrow x=\dfrac{-1.25}{-0.125}\\\Rightarrow x=10$

Double derivative of the equation

$\dfrac{d^2y}{dx^2}=-0.125$

So, the function is maximum at $x=10$

$y=-0.0625x^2+1.25x+5.75=-0.0625\times 10^2+1.25\times 10+5.75\\\Rightarrow y=12$

The function is maximum at $(10,12)$

So, the truck's center should be below the point $(10,12)$ for maximum width to pass through.

Now truck is 11 feet tall so $y=11$

$11=-0.0625x^2+1.25x+5.75\\\Rightarrow -0.0625x^2+1.25x-5.25=0\\\Rightarrow x=\frac{-1.25\pm \sqrt{1.25^2-4\left(-0.0625\right)\left(-5.25\right)}}{2\left(-0.0625\right)}\\\Rightarrow x=6,14$

The maximum width of the truck can be $14-6=8\ \text{ft}$ if it is 11 feet tall.

So, the truck which has a width of 7 feet can fit under the arch.

5 0

2 years ago

Rectangle A has a side length of 6 cm and 3.5 cm. The side length of rectangle B are proportional to the side lengths of a recta

mr Goodwill [35]

Answer:

A) 3cm and 1.75cm

Step-by-step explanation:

To determine whether or not these are proportional, take the two side lengths that are given and create a ratio. 6cm:3.5cm. I suggest writing this in fraction form to better see the equivalency. If you divide both 6cm and 3.5 cm by 2, you create an equivalent ratio of 3 cm:1.75cm. This is answer A. There is another correct answer too! If you take 6cm:3.5cm and multiple both by 1.5, it will create an equivalent ratio of 9cm:5.25 cm (answer choice E), just in a different order.

7 0

2 years ago

Need help plzzzzz need it

Deffense [45]

Answer:

Step-by-step explanation:

From the graph we can get the intercepts: