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3 years ago

Help me just pls help me I needed so bad

Mathematics

1 answer:

aleksandr82 [10.1K]3 years ago

3 0

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Pls help whoever gives me the most correct answer I'll mark brainliest

Greeley [361]

Answer:

c= 1.16n

Step-by-step explanation:

6 0

3 years ago

Select the two values of x that are roots of this equation 3x^2 + 1 =5x

Zina [86]

Answer:

x = 1.434 and x=0.232

Step-by-step explanation:

To find the root of the equation stated above we need to:

(1) Write the polynomial equation with zero on the right hand side:

$3x^{2} + 1 = 5x$ ⇒ $3x^{2} -5x + 1 = 0$

(2) Divide the whole equation by 3

$3x^{2} -5x + 1 = 0$ ⇒ $x^{2} -\frac{5}{3}x + \frac{1}{3}= 0$

(3) Use the quadratic formula to solve the quadratic equation:

The quadratic formula states that the two solutions for a quadratic equation is given by:

$\frac{-b±\sqrt{b^{2} - 4ac}}{2a}$ (1)

In this case, a = 1, b = $-\frac{5}{3}, c= \frac{1}{3}$

Substituiting a, b and c in equation (1) We get:

$\frac{-\frac{5}{3}±\sqrt{(-\frac{5}{3})^{2} - 4(1)(\frac{1}{3})}}{2(1)}$ (1)

The two solutions are:

x = 1.434 and x=0.232

8 0

3 years ago

A piece of stained glass in the shape of a right triangle has sides measuring 8 centimeters 15 centimeters and 16 centimeters wh

Wittaler [7]

The answer would be...

a= 59.43 sq. cm

3 0

3 years ago

If f(x) = – x2 + 6x - 1 and g(x) = 3x<br> - 1, find (f + g)(x).

lesantik [10]

Answer:

-x^2 +9x -2

Step-by-step explanation:

f(x) = – x^2 + 6x - 1 and g(x) = 3x - 1,

(f + g)(x) = f(x) + g(x)

= – x^2 + 6x - 1 + 3x - 1

Combine like terms

= -x^2 +9x -2

6 0

3 years ago

Please can anyone help me out!!

Yuki888 [10]

Answer:

1.39 m

Step-by-step explanation:

sin 63 = x/13.5 (x = CD)

sin 52 = x/13.5 (x=AC)

take the difference between the two

6 0

3 years ago