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1 year ago

Help pleaseeeeeeeeeeeeeee

Mathematics

1 answer:

diamong [38]1 year ago

8 0

Answer: Hey, your answer should be 372, if i’m wrong, im so sorry.

Step-by-step explanation:

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423 times 28 in grid method

agasfer [191]

Answer:

Step-by-step explanation:

7 0

2 years ago

Let f(x) = -3x + 2 and g(x) - 4x + 6. Find (f•g)(-5).

mezya [45]

Answer:

(f•g)(-5) = -238

Step-by-step explanation:

We have that:

f(x) = -3x + 2

g(x) = 4x + 6

Find (f•g)(-5).

First we find (f.g)(x)

f(x)*g(x) = (-3x + 2)*(4x + 6) = -12x² -10x + 12

When x = -5

-12(-5)² - 10(-5) + 12 = -238

(f•g)(-5) = -238

6 0

2 years ago

Need help understanding this problem.

harina [27]

Basically it’s r=c/2pi meaning it’d be r=62/2(3.14) which would give you r=9.87

5 0

2 years ago

Find the coordinates of the midpoint

love history [14]

Answer:

(2,2)

Step-by-step explanation:

(5+-1/2,8+-4/2)

(-2,2)

7 0

2 years ago

Section 5.2 Problem 17:

Elina [12.6K]

This DE has characteristic equation

$4r^2 - 12r + 9r = (2r - 3)^2 = 0$

with a repeated root at r = 3/2. Then the characteristic solution is

$y_c = C_1 e^{\frac32 x} + C_2 x e^{\frac32 x}$

which has derivative

${y_c}' = \dfrac{3C_1}2 e^{\frac32 x} + \dfrac{3C_2}2 x e^{\frac32x} + C_2 e^{\frac32 x}$

Use the given initial conditions to solve for the constants:

$y(0) = 3 \implies 3 = C_1$

$y'(0) = \dfrac52 \implies \dfrac52 = \dfrac{3C_1}2 + C_2 \implies C_2 = -2$

and so the particular solution to the IVP is

$\boxed{y(x) = 3 e^{\frac32 x} - 2 x e^{\frac32 x}}$

8 0

1 year ago