All categories

3 years ago

How many kilometers can a car travel in 12 hours

Mathematics

2 answers:

Nana76 [90]3 years ago

6 0

This depends on whatever the speed the car is going.

Vladimir79 [104]3 years ago

4 0

What's the speed of the car?

You might be interested in

I need help now plz

Romashka-Z-Leto [24]

Answer:

Step-by-step explanation:

The picture is a bit blurry, but from what i can see, i'd say C (whichever one has -4 x 3 x 1 under the square root.)

So for this, you need to know the quadratic formula, which is:

$\frac{-b ± \sqrt{b^{2} -4ac} }{2a}$

*ignore the weird capital A, it keeps coming up when i try to use the ± symbol

They have given you the equation of a quadratic, so the first thing you have to do is rearrange it, so that $x^{2}$ comes first.

So now we have the equation: 3 $x^{2}$  - 2x +1

*the quadratic formula uses a, b and c, but they are specific. a is always the coefficient of $x^{2}$ , b is always the coefficient of x and c is always the constant (number without an x)

So, i can find that, in this case:

a = 3 b= -2 c=1

Now substitute each of those values it into the original quadratic equation:

$\frac{-(-2) ± \sqrt{(-2)^{2} -4(3)(1)} }{2(3)}$

*again, ignore the weird capital A.

That's how you find the answer, which from what i can tell in the picture is C.

Hope that helped : )

6 0

3 years ago

Please answer this for me!!

Fed [463]

Answer: quit

Step-by-step explanation:

8 0

3 years ago

12 = 3 (g - 1) Options are: 5 3 -5 -3

grin007 [14]

The answer would be -3 because you distribute

6 0

3 years ago

Read 2 more answers

Suppose you want to have $400,000 for retirement in 35years. Your account earns 4% interest.

Sedaia [141]

$\begin{equation*} \$437.76 \end{equation*}$

1) This is a question for Annuity usage. Note that we'll need the following formula below:

$\begin{gathered} P=\frac{A(\frac{r}{n})}{\lbrack(1+\frac{r}{n})^{nt}-1\rbrack} \\ P=\frac{400000(\frac{0.04}{12})}{\lbrack(1+\frac{0.04}{12})^{12\cdot35}-1\rbrack} \\ P=\frac{400000\cdot\frac{0.04}{12}}{\left(1+\frac{0.04}{12}\right)^{35\cdot\:12}-1} \\ P=\frac{400000\cdot\frac{0.04}{12}}{1.0033^{420}-1} \\ P=437.76563...\approx\$437.76 \end{gathered}$

Note that P is the value you'll need to deposit each month so that in 35 years you'll have $400,000 for your retirement.

6 0

1 year ago

You MUST show your working out!

yKpoI14uk [10]

Answer:

100.32

Step-by-step explanation:

First, we have to find 14% of 88
14% of 88 is = 88 x 14/100
= 12.32

Now we have to increase the number 88 by 14%, which means we have to add 14% of 88 (12.32) to the given number (88)

88 + (14% of 88)

= 88 + 12.32

=100.32

8 0

2 years ago