All categories

3 years ago

-4x ²-3x+2=0 can you help me solve this

Mathematics

1 answer:

Romashka-Z-Leto [24]3 years ago

5 0

Answer:

x = (-3 ±√41)/8

Step-by-step explanation:

When you match your equation to the form ...

... ax² +bx +c = 0

you can see that ...

a = -4
b = -3
c = 2

These are the values you use in the quadratic formua to find the solutions for x.

... x = (-b ±√(b²-4ac))/(2a) . . . . . . the quadratic formula

... x = (-(-3) ±√((-3)² -4(-4)(2)))/(2(-4)) . . . . fill in a, b, c

... x = (3 ±√(9+32))/(-8) . . . . simplify a bit

... x = (-3 ±√41)/8 . . . . . . put the minus sign in the numerator

You might be interested in

There were 40 fingers total on the number of gloves Mrs. Edwards knitted. How many gloves did Mrs.Edward knit.

GarryVolchara [31]

40 ÷10 = 4

Mrs Edward knitted 4 pairs of gloves.

7 0

4 years ago

Read 2 more answers

How divide 27 in 624

Fudgin [204]

The answer is 89.14. 624:27

5 0

3 years ago

Read 2 more answers

Find the inverse function of m(x) = 5x - 5 A m-1(x) = 5x + 5 B m-1(x) = -5x + 5 C m-1(x) = x+5/5 D m-1(x) = x+5/-5x

bogdanovich [222]

Hi there!

$m(x) = 5x - 5$
First replace m(x) by y.

$y = 5x - 5$
To find the inverse function we must switch the places from the variables x and y.

$x = 5y - 5$
Now we need to isolate the y again to find the formula of the inverse function. First add 5 to both sides.

$x + 5 = 5y$
Switch sides.

$5y = x + 5$
And finally divide both sides by 5.

$y = \frac{x + 5}{5}$
And therefore we can conclude the following:

$m {}^{ - 1} (x) = \frac{x + 5}{5}$
The answer is C.
~ Hope this helps you!

6 0

3 years ago

Read 2 more answers

What number is most likely going to be a number less than 7 when rolling a dice

stiv31 [10]

Answer:

Each is equally likely . The probability of rolling less than 7 is equal to the probability of rolling 1 or 2 or 3 or 4 or 5 or 6. That is 1/6 + 1/6 + 1/6 + 1/6 + 1/6 + 1/6 = 6/6.

3 0

3 years ago

CITIES: The distance between New York City, New York, and Boston, Massachusetts, is 187 miles, and the distance between New York

masya89 [10]

Answer:

Greater than 90 miles

Step-by-step explanation:

Use the triangle inequality theorem, since the cities form a triangle.

This theorem states that the sum of any 2 sides of a triangle has to be greater than the length of the third side.

We can find what the length of the third side has to be greater than by subtracting 97 from 187:

187 - 97

= 90

So, the distance has to be greater than 90 miles.

6 0

3 years ago