3 years ago

Help please on that one

Mathematics

2 answers:

Irina-Kira [14]3 years ago

7 0

62.5 because 5/8 is equal to 62.5/100

nata0808 [166]3 years ago

6 0

the circle is divided into 8 sections

5 are shaded

so 5/8 are shaded

5 divided by 8 = 0.625

0.625 = 62.5%

Round to 63% if you need to.

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if I'm going to the lake that is 60 miles away and I'm driving 40 miles per hour how long would it take for me to get there

julsineya [31]

About 1.5 hours since you would do distance divided by the rate to get the time.

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3 years ago

Area of a square when 1 side is 44cm

dolphi86 [110]

Since all sides of a square are equal all sides of the square would 44cm

To find the area it’s multiply the base and height: 44*44=1936cm^2

So your answer would be 1936cm^2

I hope this helps :)

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3 years ago

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hichkok12 [17]

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4 years ago

Maria just got a raise at work. She was making $9 per hour, but now she makes 150% of that amount. Explain how you would find th

luda_lava [24]

Answer:

22.5 should be the answer

Step-by-step explanation:

3 0

3 years ago

Approximate the sum of the convergent infinite series the least usingnumber of terms so that the error is less than .0001. What

____ [38]

Solution :

$\sum_{n=1 }^{\infty } \frac{(-1)^n}{n ! 2^n}$ $a_n= \frac{(-1)^n}{n ! 2^n} \ \ \ \ \ a_{n+1}= \frac{(-1)^{n+1}}{(n+1) ! 2^{n+1}}$

Error = $|a_{n+1}|$

Error ≤ 0.0001

$|\frac{(-1)^{n+1}}{(n+1)!2^{n+1}}| \leq 0.0001$

$|\frac{1}{(n+1)!2^{n+1}}| \leq 10^{-4}$

$(n+1)! 2^{n+1} \geq 10000$

Now try, n ≥ 5

$\sum_{n=1 }^{\infty } \frac{(-1)^n}{n ! 2^n}$ = $\sum_{n=1 }^{5 } \frac{(-1)^n}{n ! 2^n}$ (with error 0.0001)

$\sum_{n=1 }^{\infty } \frac{(-1)^n}{n ! 2^n}$ = $\frac{-1}{1!2}+\frac{1}{2!2^2}-\frac{1}{3! 2^3}+\frac{1}{4! 2^4}-\frac{1}{5! 2^5}$

$\sum_{n=1 }^{\infty } \frac{(-1)^n}{n ! 2^n}$ = 0.6065104

3 0

3 years ago