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3 years ago

Appease answer ill do anything please

Mathematics

2 answers:

lana66690 [7]3 years ago

6 0

Answer:

y=x+50

Step-by-step explanation:

liberstina [14]3 years ago

5 0

Answer:

y=50x

Step-by-step explanation:

distance = 50 times the laps

100= 50 x 2

200 = 50 x 4

250= 50 x 5

400 = 50 x 8

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List a value of b that will cause 4x2 + bx + 25 = 0 to have one real solution

vlada-n [284]

Answer:

Step-by-step explanation:

If you take (2x+5) (2x+5) = 0

then 4x^2 + 20x +25 = 0

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3 years ago

I kinda need this now :/ Help pls, Will give brainlist**

sertanlavr [38]

Answer:

Answer:

you said you needed 22,23

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3 years ago

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lubasha [3.4K]

Answer:

Ithink the answers B

Step-by-step explanation:

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3 years ago

Type SSS, SAS, ASA, SAA, or HL To justify why the two larger triangles are Congruent.

lakkis [162]

I’m assuming the answer is HL since they only gave us two letters.

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3 years ago

The following integral requires a preliminary step such as long division or a change of variables before using the method of par

shtirl [24]

Division yields

$\dfrac{x^4+7}{x^3+2x} = x-\dfrac{2x^2-7}{x^3+2x}$

Now for partial fractions: you're looking for constants a, b, and c such that

$\dfrac{2x^2-7}{x(x^2+2)} = \dfrac ax + \dfrac{bx+c}{x^2+2}$

$\implies 2x^2 - 7 = a(x^2+2) + (bx+c)x = (a+b)x^2+cx + 2a$

which gives a + b = 2, c = 0, and 2a = -7, so that a = -7/2 and b = 11/2. Then

$\dfrac{2x^2-7}{x(x^2+2)} = -\dfrac7{2x} + \dfrac{11x}{2(x^2+2)}$

Now, in the integral we get

$\displaystyle\int\frac{x^4+7}{x^3+2x}\,\mathrm dx = \int\left(x+\frac7{2x} - \frac{11x}{2(x^2+2)}\right)\,\mathrm dx$

The first two terms are trivial to integrate. For the third, substitute y = x ² + 2 and dy = 2x dx to get

$\displaystyle \int x\,\mathrm dx + \frac72\int\frac{\mathrm dx}x - \frac{11}4 \int\frac{\mathrm dy}y \\\\ =\displaystyle \frac{x^2}2+\frac72\ln|x|-\frac{11}4\ln|y| + C \\\\ =\displaystyle \boxed{\frac{x^2}2 + \frac72\ln|x| - \frac{11}4 \ln(x^2+2) + C}$

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2 years ago