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3 years ago

276x^2−136x+869+−5184x+6

Mathematics

1 answer:

iragen [17]3 years ago

7 0

Answer:

$276x^{2} -5320x +875$

Step-by-step explanation:

Collect like terms and calculate the sum

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Cos15°°- Sin 15°= 1/√2

ololo11 [35]

<h2><u>Refer</u><u> this</u><u> attachment</u></h2>

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3 years ago

the verticales of triangle XYZ are X(-3,-6),Y(21,-6),and Z(21,4). What is the perimeter of the triangle

andrezito [222]

Answer:

Step-by-step explanation:

The formula of a distance between two points:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

X(-3, -6), Y(21, -6). Substitute:

$XY=\sqrt{21-(-3))^2+(-6-(-6))^2}=\sqrt{24^2+0^2}=\sqrt{24^2}=24$

X(-3, -6), Z(21, 4). Substitute:

$XZ=\sqrt{(21-(-3))^2+(4-(-6))^2}=\sqrt{24^2+10^2}=\sqrt{576+100}=\sqrt{676}=26$

Y(21, -6), Z(21, 4). Substitute:

$YZ=\sqrt{(21-21)^2+(4-(-6))^2}=\sqrt{0^2+10^2}=\sqrt{10^2}=10$

The perimeter of the triangle XYZ:

$P_{\triangle XYZ}=XY+XZ+YZ$

Substitute:

$P_{\triangle XYZ}=24+26+10=60$

6 0

3 years ago

Which expression belongs

Nutka1998 [239]

For the expression to be equal to the original one, we have;

[(x + 1) * 5(x - 1)(x + 4)]/[(x - 1) * 7x]

<h3>How to Simplify Algebraic Expressions?</h3>

We are given the algebraic expression;

(5x² + 25x + 20)/(7x)

Now, looking at the numerator, a common factor to all terms is 5. Thus, we will factorize it out to get;

5(x² + 5x + 4) = 5((x + 1)(x + 4))

Now, we see that the expression that simplifies the algebra is given as;

[(x² + 2x + 1) * ( )]/[( ) * (7x² + 7x)]

Now, the numerator and denominator can be factorized to get;

[(x + 1)(x + 1) * ( )]/[( ) * 7x(x + 1)]

Thus, x + 1 will cancel out to get;

[(x + 1) * ( )]/[( ) * 7x]

For the expression to be equal to the original one, we have;

[(x + 1) * 5(x - 1)(x + 4)]/[(x - 1) * 7x]

Read more about Algebraic Expressions at; brainly.com/question/723406

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2 years ago

2. Find a polynomial function p(t) with integer coefficients that satisfy the given conditions.

anyanavicka [17]

Step-by-step explanation:

Third-degree polynomial.

f(x) = a3 x3 + a2 x2 + a1 x + a0

Zeros at 4 and +/- 2i. That says you have factors that look like this:

(x - 4) (x2 + 4) <-- that second factor accommodates the complex zeros

And the constant coefficient of -128. So

f(x) = -128 (x - 4) (x2 + 4)

We'll multiply this through to find all the integer coefficients.

f(x) = -128 (x3 - 4x2 + 4x - 16)

a3 = -128

a2 = 512

a1 = -512

a0 = 2048

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3 years ago

Which is the least metric mass?<br><br> 0.0019 kg<br> 0.19 g<br> 190 cg<br> 1900 mg

Masteriza [31]

Answer:0.0019g

Step-by-step explanation:

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3 years ago