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zalisa [80]
3 years ago
10

If DE = 4x - 1, EF = 9, and DF = 9x - 22, find the value of x.

Mathematics
1 answer:
arlik [135]3 years ago
5 0

Answer: x=6

Step-by-step explanation:

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Someone please answer these two questions
galben [10]

Answer:

Are you dumb

Step-by-step explanation:

Stupid or dumb

7 0
3 years ago
Nolini says that if the denominator is more than twice the numerator, the fraction can always be replaced with a 0. Is she corre
Len [333]

Answer:

yes

Step-by-step explanation:

It depends on how accurate you want your answer to be, but basically yes, imagine we set our numerator to be x, and our denominator to be 2x, if we built our fraction we will get that:

\frac{x}{2x}=\frac{1}{2}

If the denominator of a fraction is exactly twice the numerator, then the fraction will be simplified to 1/2 or 0.5.

Now, the greater the denominator is, the closer the fraction will get to zero.

Take for example I had an fraction like this:

\frac{3}{6}=0.5

which approximates to 0. If we made the denominator bigger, let's say 7, we would get:

\frac{3}{7}=0.43

notice the answer is closer to 0 this time, so it's valid to round it to zero. If we made the denominator greater, let's say 25, we would get:

\frac{3}{25}=0.12

and so on. So it is true that if the denominator of a fraction is greater than twice the numerator, we can always replace the fraction with a 0 (depending on how accurate you want your answer to be).

5 0
3 years ago
If sin x = 0.9, what is the value of cos x?<br><br> Round the value to the nearest thousandth.
Svetlanka [38]
Sinx=0.9

arcsin0.9=x

cos(arcsin0.9)=0.436
5 0
3 years ago
Which answer shows this equation written in standard form?
Iteru [2.4K]
So first we solve and simplify
pemdas
first parenthasees

9-4(x-y)=-6x+6
distribute using distributeive property of multiplication which is a(b+c)=(ab)+(ac)

so -4(x-y)=-4x+4y

9-4x+4y=-6x+6
add 6x to both sides
9+2x+4y=6
subtract 9 from both sides
2x+4y=-3
only B matches this
B is the correct answer

(I don't know what standard form is but I know what simplified is)
5 0
3 years ago
Choose the equation of the horizontal line that passes through the point (2, 4)
N76 [4]

horizontal lines take the value of y

y=4

3 0
3 years ago
Read 2 more answers
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