3 years ago

Will you PLZ HELP!!!!!

Mathematics

1 answer:

Basile [38]3 years ago

5 0

Will you mark me Brainlest ?

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|a-7| - |a-9| if a<7

CaHeK987 [17]

Step-by-step explanation:

$- |a - 7| - ( - |a - 9| ) = - a + 7 + a - 9 = - 2$

4 0

3 years ago

What is the volume of the triangular pyramid

Delvig [45]

I hope this helps you

7 0

4 years ago

What is the factorization of the trinomial below -x^2 + 2x + 48

OlgaM077 [116]

For this case we must factor the following expression:

$-x ^ 2 + 2x + 48$

We take the sign "-" as a common factor of the expression, taking into account that:

$- * - = +\\- (x ^ 2-2x-48)$

To factor, we must find two numbers that, when multiplied, result in -48 and when added, result in -2. These numbers are -8 and +6.

$-8 + 6 = -2\\(-8) * (+ 6) = - 48$

Then, we factor the expression within the parenthesis as:

$- ((x-8) (x + 6))$

Answer:

$- (x-8) (x + 6)$

4 0

4 years ago

Put 9, -7, and -8 in order from least to greatest. You can use the number line to help. 9 -10 -8 -7 -6 -8 -4 -2 0 2 4 6 8 10

boyakko [2]

-8, -7, 9

Step-by-step explanation:

8 0

2 years ago

Match the following guess solutions yp for the method of undetermined coefficients with the second-order nonhomogeneous linear e

qaws [65]

Answer:

Step-by-step explanation:

For each of the yp(x) we can deduce the characteristic polynomial of the differential equation

$yp(x)=Ax^2+Bx+C\\m^2=0\\y''=0$

$yp(x)=Ae^{2x}\\(m-2)m=0\\m^2-2m=0\\y''-2y=0$

$yp(x)=Acos2x+Bsin2x\\m_1=2i\\m_2=-2i\\y''+4=0$

$yp(x)=(Ax+B)cos2x+(Cx+D)sin2x\\yp(x)=xcos4x$

hope this helps!!

8 0

3 years ago