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Goshia [24]
3 years ago
14

I need help with this ^

Mathematics
1 answer:
ladessa [460]3 years ago
7 0
B + 24 + 7b + 4b = 180
12b + 24 = 180
12b = 156
b = 13
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Find the limit. use l'hospital's rule if appropriate. if there is a more elementary method, consider using it. lim x→1 1 − x + l
AfilCa [17]

\displaystyle\lim_{x\to1}\frac{1-x+\ln x}{1+\cos5\pi x}

Evaluating the limand directly at x=1 gives an indeterminate form \dfrac00. Apply L'Hospital's rule once and we get

\displaystyle\lim_{x\to1}\frac{-1+\frac1x}{-5\pi\sin5\pi x}

Again, plugging in x=1 returns \dfrac00. Apply the rule once more:

\displaystyle\lim_{x\to1}\frac{-\frac1{x^2}}{-25\pi^2\cos5\pi x}=\frac1{25\pi^2}\lim_{x\to1}\frac1{x^2\cos5\pi x}

Now, in the denominator, when x=1 we get x^2\cos5\pi x=-1, so the limit is -\dfrac1{25\pi^2}.

3 0
4 years ago
Can anyone solve these 3 equations?
Nesterboy [21]

Answer:

1. x = 1, -2

2.  no solution

3.  x = 6 -4

hope this helps!

Step-by-step explanation:


3 0
3 years ago
Michelle pays $66.85 for a costume pattern and 8 yards of fabric. The costume pattern cost $4.85 how much does each yard of fabr
kogti [31]

Answer:

I got $7.75.

Step-by-step explanation:

66.85-4.85=62

62/8=7.75.

7 0
3 years ago
Find the equation of the line that is perpendicular to y = - 1/3 x + 2 and passes though the point (-5,2)
elena55 [62]

Answer:

y - 2 = 3(x + 5)

Step-by-step explanation:

The given equation has slope -1/3.  Any line perpendicular to the given line has a slope which is the negative reciprocal of -1/3, which comes out to +3.

Use the point-slope formula y - k = m(x - h):

y - 2 = 3(x + 5)

6 0
3 years ago
The solution set of a linear system whose augmented matrix is [a b c d] is the same as the solution set of Ax = d, where A = [a
Charra [1.4K]

Answer:

True

Step-by-step explanation:

First statement

[a b c | d][x]

[a b c]x=d

ax+bx+cx=d

Second statement

Ax=d

Given that A = [a b c]

[a b c]x=d

ax+bx+cx=d

ax+bx+cx=d

Then, they are going to have the same solutions

6 0
3 years ago
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