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irina [24]
3 years ago
6

Which of the following statements contain a variable? Check all that apply.

Mathematics
2 answers:
andriy [413]3 years ago
7 0

Answer:

the answer is D

Step-by-step explanation:

this is because the number is unknown so  you have to put a variable

deff fn [24]3 years ago
5 0

Answer:

A, C, and D

Step-by-step explanation:

B doesn't because the "five feet tall" isn't something that can change.

I could be wrong but, I think this is right sorry if it isn't! Tried my best fam!

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50b 50=11b 95 what is b?
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Answer the following questions CORRECTLY I will know if this is wrong. I WILL REPORT ANY INCORRECT ANSWERS!
GenaCL600 [577]

Answer by JKismyhusbandbae: 6n-16

Arithmetic Formula: a^n=-10+6\left(n-1\right)

Use the following formula to determine any number in an arithmetic sequence:

an = a1 + d (n – 1)

a1 = the first term.

d = common difference

n = term number

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Find the area of the figure below?
inna [77]

Answer:

i cant load the picture

Step-by-step explanation:

7 0
3 years ago
How do you do these two questions?
nignag [31]

Step-by-step explanation:

(a) ∫₋ₒₒ°° f(x) dx

We can split this into three integrals:

= ∫₋ₒₒ⁻¹ f(x) dx + ∫₋₁¹ f(x) dx + ∫₁°° f(x) dx

Since the function is even (symmetrical about the y-axis), we can further simplify this as:

= ∫₋₁¹ f(x) dx + 2 ∫₁°° f(x) dx

The first integral is finite, so it converges.

For the second integral, we can use comparison test.

g(x) = e^(-½ x) is greater than f(x) = e^(-½ x²) for all x greater than 1.

We can show that g(x) converges:

∫₁°° e^(-½ x) dx = -2 e^(-½ x) |₁°° = -2 e^(-∞) − -2 e^(-½) = 0 + 2e^(-½).

Therefore, the smaller function f(x) also converges.

(b) The width of the intervals is:

Δx = (3 − -3) / 6 = 1

Evaluating the function at the beginning and end of each interval:

f(-3) = e^(-9/2)

f(-2) = e^(-2)

f(-1) = e^(-1/2)

f(0) = 1

f(1) = e^(-1/2)

f(2) = e^(-2)

f(3) = e^(-9/2)

Apply Simpson's rule:

S = Δx/3 [f(-3) + 4f(-2) + 2f(-1) + 4f(0) + 2f(1) + 4f(2) + f(3)]

S ≈ 2.5103

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3 years ago
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