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3 years ago

X² − 12x + 36 = 0 Solutions?

2 answers:

8 0

X² - 12x + 36 = 0
We know this is in standard form so we can use the quadratic formula. Indeed like a previous solution posted you can use factors, that is quicker but this will always work so let's see.

Now let's fill the gaps in the formula

x = 12 +- square root of (144 - 4(1)(36) )/ 2

X = 12 +- square root of (144 - 144) / 2

X = 12 / 2

X = 6

Alika [10]3 years ago

5 0

Factors of 36 that add up to -12

-6 and -6

<span>(x − 6)(x − 6)
</span>
Set them both to equal 0 and solve for x

x - 6 = 0

x - 6 = 0

x = 6

x = 6

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What is the value of m in the equation 38(m−29)=434 ?

Len [333]

38(m - 29) = 434...distribute thru the parenthesis
38m - 1102 = 434...add 1102 to both sides
38m = 434 + 1102
38m = 1536....divide both sides by 38
m = 1536/38
m = 768/19 or 40 8/19

8 0

3 years ago

Help me PLZZZZZZZ!!!!!!

eduard

Answer:

25% decrease

Step-by-step explanation:

Take the original amount of books and subtract the new number of books

20 -15 = 5

Divide by the original amount of books

5/20 = .25

Multiply by 100%

25%

It is a decrease since the amount went down

25% decrease

7 0

3 years ago

15% of people on the beach do not wear sun screen. If 30 people don't wear sunscreen, what is the total number of people at the

lara [203]

Answer: The information you are given shows that 15% = 30. Multiply 30 by 6 and 2/3 (The number of times 15 goes into 100) and you have your answer. There are 200 people on the beach.

6 0

3 years ago

X^2+3x-10 will be zero when x equals

Anit [1.1K]

Answer:

Answer: x equals to 2 and -5

Step-by-step explanation:

${ \tt{ {x}^{2} + 3x - 10 = 0 }}$

» Factorise the equation quadratically:

${ \tt{(x - 2)(x + 5) = 0}} \\ { \tt{x = 2 \: \: and \: \: - 5}}$

3 0

2 years ago

Read 2 more answers

at 111111:55\text{ p.m.}55 p.m.55, start text, space, p, point, m, point, end text, thomas ties a weight to the minute hand of a

Ahat [919]

The trigonometric function's formula, which simulates the torque (tau) that the weight applied t minutes after Thomas attached it is

$3 Sin (\frac{2\frac{22}{7} }{60} (t-51))$

The angular speed of the minutes hand is

$w = \frac{2 (\frac{22}{7}) }{60}$ rad/min

Following the application of weight, the torque as a function of time t is,

$t= t_{0} sin (w (t-5) min)\\ = (3 Nm) sin ((\frac{2 (\frac{22}{7} }{60} ) rad/min (t-5) min)$

$= (3 Nm) sin ( \frac{2 (\frac{22}{7} }{60} (t-5) rad ) \\= 3 sin (\frac{2 \frac{22}{7} }{60} (t-5)$

<h3>What is torque ?</h3>

Torque, which is also known as the moment of a force, is the propensity of a force to rotate the body to which it is applied. Force (F) x Distance (r) = Torque is how torque is calculated. The distance (r) between the pivot point and the force's action point. A vector quantity is a torque. As a vector quantity, torque always has a direction that is perpendicular to the plane that contains the vectors of force and displacement.

To learn more about Torque, visit

brainly.com/question/16042080

#SPJ4

7 0

2 years ago