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Semmy [17]
3 years ago
5

A. -2 5/7 B. - 3/8 C. - 1/21 D. 1/3

Mathematics
1 answer:
pentagon [3]3 years ago
7 0

-1/3 * (8 1/7)

= -1/3 * 57/7

= -57/21

= - 2 15/21

= -2 5/7

Answer

A. -2 5/7

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Macy has a circular garden that has a radius of 9 meters. What is the circumference of her garden? Use 3.14 for pi.
olga2289 [7]

Answer:

c

Step-by-step explanation:

i am 99.99% sure it is c

6 0
3 years ago
I give brainlilest
timurjin [86]

Answer:

7 days or 2 days (depending on context)

Step-by-step explanation:

15 liters a day ÷ 5 days= 3 liters a day

21÷3=7

if she just wanted to make 6 more to make 21, then it would take 2 days.

6 0
3 years ago
G(x)=27x^3+125
Darya [45]

Answer:

The answer to your question is: (3x + 5)(9x² - 15x + 25)

Step-by-step explanation:

Data

G(x) = 27x³ + 125

This is a sum of cubes

Process

\sqrt[3]{27} = 3

\sqrt[3]{125} = 5

      27x³ + 125 = (3x)³ + (5)³ = (3x + 5)(9x² - 15x + 25)

8 0
3 years ago
Answer pleaseee :)))
Mrac [35]

Answer:

m∠XYZ=106°, m∠XWY = 53°

Step-by-step explanation:

XYZ is a central angle, its arc is XY = 106°. so m∠XYZ = mXY=106°

XWY is an inscribed angle, its arc XY = 106°, so m∠XWY =1/2 mXY=1/2*106=

= 53°

4 0
3 years ago
How to integrate with steps:<br><br> (4x2-6)/(x+5)(x-2)(3x-1)
joja [24]

\displaystyle\int\frac{4x^2-6}{(x+5)(x-2)(3x-1)}\,\mathrm dx

You have a rational expression whose numerator's degree is smaller than the denominator's. This tells you you should consider a partial fraction decomposition. We want to rewrite the integrand in the form

\dfrac{4x^2-6}{(x+5)(x-2)(3x-1)}=\dfrac a{x+5}+\dfrac b{x-2}+\dfrac c{3x-1}

\implies4x^2-6=a(x-2)(3x-1)+b(x+5)(3x-1)+c(x+5)(x-2)

You can use the "cover-up" method here to easily solve for a,b,c. It involves fixing a value of x to make 2 of the 3 terms on the right side disappear and leaving a simple algebraic equation to solve for the remaining one.

  • If x=-5, then 94=112a\implies a=\dfrac{47}{56}
  • If x=2, then 10=35b\implies b=\dfrac27
  • If x=\dfrac13, then -\dfrac{50}9=-\dfrac{80}9c\implies c=\dfrac58

So the integral we want to compute is the same as

\displaystyle\frac{47}{56}\int\frac{\mathrm dx}{x+5}+\frac{10}{35}\int\frac{\mathrm dx}{x-2}+\frac58\int\frac{\mathrm dx}{3x-1}

and each integral here is trivial. We end up with

\displaystyle\int\frac{4x^2-6}{(x+5)(x-2)(3x-1)}\,\mathrm dx=\frac{47}{56}\ln|x+5|+\frac27\ln|x-2|+\frac5{24}\ln|3x-1|+C

which can be condensed as

\ln\left|(x+5)^{47/56}(x-2)^{2/7}(3x-1)^{5/24}\right|+C

7 0
3 years ago
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