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2 years ago

What does a Riemann sum represent?

1 answer:

3 0

A Riemann sum approximates the area of a certain region. Usually it's used in calculus, where you use the Riemann sum to approximate the area a curve instead of using an integral to find the exact value, since that tends to take a lot more time and effort.

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Number six please help!

Minchanka [31]

Answer:

Use ratios of corresponding sides to find the value of x.

(2x - 18)/ 24 = 8/ 48
2x - 18 = 24/6
2x - 18 = 4
2x = 22
x = 11

(x + 4)/18 = 25/30
x + 4 = 18*5/6
x + 4 = 15
x = 11

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2 years ago

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Which expression is equal to 10/√50 Please show work thx:)

zmey [24]

so the right answer is of option B....

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2 years ago

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I need help with this

tia_tia [17]

Answer:

Step-by-step explanation:

1 foot = 12 inches

1 yard = 3 feet

1 yard = 12×3 = 30 inches

30+11 inches = 47 inches

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2 years ago

Pls solve this. this is of set class 9.

Novay_Z [31]

Here is the answer :

people who like both the songs is 35 and

people who like only folk songs is 100.

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11 months ago

What are the potential solutions to the equation 2ln(x+3)=0

skad [1K]

$2\ln(x+3)=0\implies \ln(x+3)^2=0\implies e^{\ln(x+3)^2}=e^0\implies (x+3)^2=1$

Expanding the left side gives

$x^2+6x+9=1\implies x^2+6x+8=0\implies (x+4)(x+2)=0$

which gives two solutions, $x=-4$ and $x=-2$ . But if $x=-4$ , then $\ln(x+3)=\ln(-1)$ , but this number isn't real, so $x=-4$ is an extraneous solution. Meanwhile if $x=-2$ , you get $\ln(-2+3)=\ln1=0$ , so this solution is correct.

"Potential solutions" might refer to both possibilities, but there is only one actual (real) solution.

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2 years ago

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