All categories

3 years ago

How do you solve for the x?

Mathematics

1 answer:

Norma-Jean [14]3 years ago

4 0

when we simplfy 3x^2-4x-20=0 then by using quadratic formula we get x=2 Or x=-10/3

You might be interested in

Need some help! With any of the questions

Vadim26 [7]

Answer:

For 12 I think AB is 38

Step-by-step explanation:

8 0

3 years ago

To make concrete, 2 parts cement is mixed with every 5 parts of sand. write down the ratio of cement to sand.

aliina [53]

The answer would be 2:5 because there is 2 parts of cement and 5 parts of sand and they want to know the ratio of cement to sand

A ratio is simply comparing something and it compared the cent to the sand which is 2:5 or you can right it as 2 to 5 or 2/5 as a fraction

7 0

3 years ago

A hostel having strength of 300 students requires on an average 36000 L of water per day. It has a tank measuring 10 m × 8 m × 9

Novosadov [1.4K]

Answer:

The water in the tank filled to capacity lasts 20 days.

Step-by-step explanation:

Total number of students in the hostel = 300

The average need of water per day = 36,000 L

The dimensions of the tank = 10 m × 8 m × 9 m

Now, the capacity of the tank = LENGTH X WIGHT X HEIGHT

= 10 m × 8 m × 9 m = 720 cubic meters

Now, $1m^{3} = 1,000L$

⇒ $720 m^{3} = 720 \times 1,000L = 720,000L$

So, the capacity of the tank = 720,000 L

and the average usage of water by 300 students = $= \frac{720,000 L}{36,000 L} = 20$

⇒ $\textrm{The number of days water lasts} = \frac{\textrm{Total capacity of the tank}}{\textrm{Average need of water per day}}$

or, number of days = 20

Hence, the water in the tank filled to capacity lasts 20 days.

3 0

3 years ago

Solve the proportion then around your answer to the nearest hundredth

Andreyy89

Answer:

$\frac{6.3}{x} = \frac{2.56}{9.3} \\ x = \frac{6.3 \times 9.3}{2.56} \\ x = 22.89$

7 0

3 years ago

Read 2 more answers

WILL AWARD BRAINLIEST

balu736 [363]

Answer:

when entering values of x in the function, it is observed that for k = 7 the results of f (x) displace 10 units. For this see the attached table. Therefore, for this case, the correct answer is k = 7 and the way to solve it is to substitute values of x in the given functions and see the results of f (x).

so K=7

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers