Which fraction is equal to 0.4 repeating

Answers

Answer 1

Answer:

The fraction equal to 0.4 repeating is 4/9.

The fraction equal to 0.4 repeating can be determined by converting the repeating decimal into a fraction form.

We denote the repeating decimal as x. To eliminate the repeating part, we multiply both sides of the equation by a power of 10 that is equal to the number of repeating digits.

In this case, multiplying by 10 will be enough.

10x = 4.44444...

Now, subtracting x from both sides, we have:

10x - x = (4.44444...) - (0.44444...)

9x = 4

Dividing both sides by 9:

x = 4/9

Therefore, the required fraction is 4/9.

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Answer 2

Answer: four over nine
x=0.44444
10x = 4.44444
10x-1x = 4
9x = 4
x = 4/9

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After 8 years, ofelia earned $980 in simple interest from a cd into which she initially deposited $7000. what was the annual interest rate of the cd?

Answers

The annual interest rate of cd was 1.75.

What is simple interest?

Simple interest is the interest calculated on the principal portion of a loan or the original contribution to a saving amount.

Formula for simple interest

S.I = (P × R × T)/100

Where,

S.I is the simple interest

P is the initial principal balance

R is the interest rate

T is the time in years

According to the given question

We have

Simple Interest, SI = $980

Initial principal balance, P = $7000

Time, T = 8 years

Therefore, the annual interest rate for cd is given by

$980=((7000)(R)(8))/(100)$

⇒ $R =((980)(100))/((7000)(8))$

⇒ $R=1.75$

Hence, the annual interest rate of cd was 1.75.

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We have: I = P × R × T / 100
Here, I = 980
P = 7000
T = 8

Substitute their values into the expression:
980 = 7000 × R × 8 / 100
R = 980 × 100 / 7000 × 8
R = 98000 / 56000
R = 1.75%

In short, Your Answer would be 1.75%

Hope this helps!

What is 19 × 10 I need help please

Answers

what is 19 × 10 I need help please

190

Rewrite with only sin x and cos x.cos 2x - sin x
Select one:
a. cos2x - sin2x - sin x
b. cos2x - sin3x
c. cos2x + sin2x + sin x
d. cos2x - 3 sin x

Answers

The answer is a. cos2x - sin2x - sin x. Use the rule: cos2x = (cos^2)x - (sin^2)x. So, substitute cos2x in the expression: cos2x - sinx = ((cos^2)x - (sin^2)x) - sinx = (cos^2)x - (sin^2)x - sinx. Therefore, choice a. is correct choice.

$cos^2x - sin^2x - sin x$ is the solution of the given equation.

To rewrite the expression cos 2x - sin x using only sin x and cos x, we can apply trigonometric identities.

Using the identity $cos 2x = 1 - 2sin^2x$ , we can rewrite the expression as:

$1 - 2sin^2x - sin x$

Since,

$sin^2x +cos^2x = 1$

Therefore, the correct answer is:

a. $cos^2x - sin^2x - sin x$

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Shalika bought a purse for $120. The tax rate is 9%

Answers

120.00 * 9% = 10.08
tax is $10.08

hope that helps!

Factor completely x3 + 2x2 – 15x

Answers

$x^3 + 2x^2 - 15x$

first we can factor out an x
$x(x^2 + 2x - 15)$

then we find a pair of numbers that multiply to -15 and add up to 2

this would be 5 and -3
because 5 times -3 = -15
and -3 + 5 = 2

we would then get
$x(x-3)(x+5)$

this would be you answer :)

Hi Lisa

x³ + 2x² - 15x

= x( x-3)(x+5)

I hope that's help:)

Have a great summer :)

It takes Juwan exactly 35 minutes by car to get to his grandmother's the nearest parking area is 4 minute walk from her apartment. One week, he realized that he spent 5 hours and 12 minutes traveling to her apartment in then back home. how many round trips did he make to visit his grandmother?

Answers

you have sloppy handwriting. #rekt

lol do your homework

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