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Gelneren [198K]
3 years ago
15

What is 0.4 repeting as afraction

Mathematics
2 answers:
igomit [66]3 years ago
6 0

Answer:

2/5

Step-by-step explanation:

svet-max [94.6K]3 years ago
6 0

Answer:

4/9

Step-by-step explanation:

When you go to do a repeating decimal, put whatever repeats over 9. For example lets say we want .49494949 repeating it would be 49/99

however in this case we want 4 to repeat so it would be 4/9.

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Write a linear function f with the values f(10)=5 and f(2)=-3
Nutka1998 [239]

Answer:

f(x)=x-5

Step-by-step explanation:

step 1

Find the slope m

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

we have the ordered pairs

(10,5) and (2,-3)

substitute the values

m=\frac{-3-5}{2-10}

m=\frac{-8}{-8}

m=1

step 2

Find the equation of the line in slope intercept form

f(x)=mx+b

we have

m=1

point\ (10,5)

substitute and solve for b

5=(1)(10)+b

5=10+b

b=-5

The linear function is equal to

f(x)=x-5

3 0
3 years ago
I need to know how to solve this algebra problem
yan [13]
8(x2+2x-8)
8(x2+4x-2x-8)
8[(x2+4x]-(2x-8)]
8[x(x+4)-2(x+4)]

8(x-2)(x+4) is your final answer !!!!
4 0
3 years ago
Read 2 more answers
What is the location of point R on the number line?<br> 14/5, 16/5, 18/5, 22/5
SOVA2 [1]

Answer: 14/5

Step-by-step explanation:

5 0
3 years ago
A vectador is buying two new cowboy hats.All together the hats cost $75.12.The second hat costs twice as more as the first hat.W
faust18 [17]
<h2>Greetings!</h2>

Answer:

$50.08

Step-by-step explanation:

Let x be the cheaper hat, is the more expensive hat is 2 times this value, it can be shown by 2x. The addition of these two values = 75.12

x + 2x = 75.12

3x = 75.12

Divide both sides by three to find 1x:

x = 25.04

If the more expensive hat is 2x this, then:

2 * 25.04 = 50.08

So the more expensive hat is $50.08!


<h2>Hope this helps!</h2>
6 0
3 years ago
What is the inverse of the function f(x) = 4x + 8?<br> o n(x) = x-2
kow [346]
X-2
Explain
-2(4)(5-2+2)
8 0
3 years ago
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