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KengaRu [80]
3 years ago
15

Write the percent as a decimal and as a fraction in simplest form 75%

Mathematics
2 answers:
Simora [160]3 years ago
3 0
To change from percent to decimal, move the decimal place to the left two times. In this case the decimal is after the 75. so the decimal is .75 To write .75 as a fraction put 75/100 because it is in the hundredths place. Reduce by dividing both parts by 25. the fraction is 3/4

Hope that helped! if you don't get it ask and ill re explain!
zubka84 [21]3 years ago
3 0
.75 and 3/4
It's equivalent to 75/100, and you want to pull 25 out of each to simplify to 3/4
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Harman [31]

(i) 2^6

(ii) 3^5

(iii) -1^14

(iv) 0.3^4

4 0
2 years ago
Can anyone help me please?
Grace [21]

Answer: 17

Step-by-step explanation:

We can tell that for every 2 changes in X there is 8 points lost in y

meaning that if we do 8 /2 we get 4

Every 1 change in x there is 4 points of change in Y

so if (3,5) Then (0,17)

17 - 5 = 12 And 3-0 = 3 So for 3 points of change for Xthere were 12 points of change for Y so this is right

3 0
2 years ago
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Find the length of the curve given by ~r(t) = 1 2 cos(t 2 )~i + 1 2 sin(t 2 ) ~j + 2 5 t 5/2 ~k between t = 0 and t = 1. Simplif
xxMikexx [17]

Answer:

The length of the curve is

L ≈ 0.59501

Step-by-step explanation:

The length of a curve on an interval a ≤ t ≤ b is given as

L = Integral from a to b of √[(x')² + (y' )² + (z')²]

Where x' = dx/dt

y' = dy/dt

z' = dz/dt

Given the function r(t) = (1/2)cos(t²)i + (1/2)sin(t²)j + (2/5)t^(5/2)

We can write

x = (1/2)cos(t²)

y = (1/2)sin(t²)

z = (2/5)t^(5/2)

x' = -tsin(t²)

y' = tcos(t²)

z' = t^(3/2)

(x')² + (y')² + (z')² = [-tsin(t²)]² + [tcos(t²)]² + [t^(3/2)]²

= t²(-sin²(t²) + cos²(t²) + 1 )

................................................

But cos²(t²) + sin²(t²) = 1

=> cos²(t²) = 1 - sin²(t²)

................................................

So, we have

(x')² + (y')² + (z')² = t²[2cos²(t²)]

√[(x')² + (y')² + (z')²] = √[2t²cos²(t²)]

= (√2)tcos(t²)

Now,

L = integral of (√2)tcos(t²) from 0 to 1

= (1/√2)sin(t²) from 0 to 1

= (1/√2)[sin(1) - sin(0)]

= (1/√2)sin(1)

≈ 0.59501

8 0
3 years ago
Given function f(x)=x^2+5, determine the value of f(f(5))
zalisa [80]

Answer:

905

Step-by-step explanation:

So your original equation is f(x) = x² + 5

First lets work with the stuff inside the parentheses.

f(5) = 5² + 5 = 30

So now you are finding,

f(f(5)) => f(30)

f(30) = 30² + 5 = 900 + 5 = 905

8 0
3 years ago
Calculate the unit cost per Kg if it costs $16.99 for 454 g package of cooked shrimp.
goblinko [34]

Answer:

$37.42 / kg

Step-by-step explanation:

Divide 16.99 by 454 to get the unit cost per gram. This equals 0.037422907…

Take this number and multiply it by 1000, while rounding it to the nearest hundredth after.

This equals about $37.42 / kg.

5 0
2 years ago
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