Ask question

Ask question

All categories

3 years ago

6

Which method is the most efficient method to use to solve 2x^2 4x-3=0?

1 answer:

Darya [45]3 years ago

4 0

You should use the formula - b+-√b^2- 4 ac/2a. A=2 B=4 C=-3. Plug these numbers into the formula. If you get a negative in the square root try using a method called the box method.

You might be interested in

Are a total of 127 Cars And trucks on a lot. If there. For more than twice the number of trucks, then cars, how many cars and tr

kow [346]

Answer:

41 cars and 86 trucks

Step-by-step explanation:

C+T=127

2C+4=T

C+(2C+4)=127

3C+4=127

3C=123

C=41When C=41,

41+T=127

T=127-41

T=86

3 0

3 years ago

Cosx - 4 = sinx -4<br> (0,2pi)<br>Find solutions

lutik1710 [3]

$\bf cos(x)-4=sin(x)-4\implies cos(x)=sin(x)\implies \cfrac{cos(x)}{sin(x)}=0
\\\\\\
cot(x)=0\implies \measuredangle x=cot^{-1}(0)\implies \measuredangle x=\frac{\pi }{2}~~,~~\frac{3\pi }{2}$

8 0

3 years ago

What is the value of 4p − 2, when p = 8?<br> What is the value of the expression when n = 3?

stepan [7]

Answer:

The first one would be 30.

Step-by-step explanation:

First you multiply the 8 x 4, because the 4 and P are multiplying you just substitute the variable, and then substract 2.

7 0

3 years ago

Read 2 more answers

One day, Karen bought 22 random cans of soup from a grocery store. Suppose that 5% of cans sold at that particular grocery store

zimovet [89]

Answer:

0.6765 = 67.65%

Step-by-step explanation:

This situation can be treated as a binomial model with probability of success (dented can) of p = 0.05.

In 22 random trials, the probability of at least one success is determined by:

$P(X>1) = 1-P(X=0)\\P(X>1) = 1 - (1-p)^{22}\\P(X>1) = 1 - (1-0.05)^{22}\\P(X>1) =0.6765$

The probability that Karen has bought at least one dented can is 0.6765 or 67.65%.

7 0

3 years ago

Read 2 more answers

5(x-6)+3x=.75(2x-8)<br> solve.

irina1246 [14]

Answer:

Step-by-step explanation:

5(x-6)+3x=.75(2x-8)

5x - 30 + 3x = 1.5x - 6

6.5x = 24

x = 3.7

4 0

3 years ago