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2 years ago

Factor -3x - 3y - 3z. 3(-x – y + z) 3(x - y - z) -3(x + y + z) -3(x - y - z)

Mathematics

2 answers:

abruzzese [7]2 years ago

8 0

3rd option is the correct answer

Ulleksa [173]2 years ago

8 0

It is the 3rd option because -3 is common in all of the terms.

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450 g in the ratio 2:13

jonny [76]

450 g in 2:13

Total proportion asked for =2+13=15

Now comparing g with ratio, or whatever

450/15=30g $\implies$ Therefore 1 in ratio depicts of 30g

So final answer = $\boxed{60g : 390g}$

$\huge\mathfrak\colorbox{white}{}$

More to know, daily bit of knowledge: The Binomial Theorem:

$\boxed{{(a+b)} ^n= \sum_{k=0}^{n}\binom{n}{k} a^{n-k}b^{k}}$

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2 years ago

What is the inverse of the function f(x) = 2x + 1?

BaLLatris [955]

Answer:

$f^{-1} = \frac{x-1}{2}$

Step-by-step explanation:

$f(x) = 2x+1$

Replace it with y

$y = 2x+1$

Exchange the values of x and y

$x = 2y+1$

Solve for y

$x = 2y+1$

Subtracting 1 from both sides

$2y = x-1$

Dividing both sides by 2

$y = \frac{x-1}{2}$

Replace it by $f^{-1}$

So,

$f^{-1} = \frac{x-1}{2}$

3 0

3 years ago

Read 2 more answers

The rectangle has an area of x square plus 15 square meters and a width of X plus 3

hammer [34]

Answer:

x + 5

Step-by-step explanation:

4 0

3 years ago

Evaluate S5 for 400 + 200 + 100 + … and select the correct answer below.

Nadusha1986 [10]

The correct answer is B) 775

Why 775? Because Assume the series continues.

400+200+100+50+25=775

I hope this helps.

Have a great day. :)

5 0

2 years ago

Read 2 more answers

What are the coordinates of the midpoint of the segment whose endpoints are (-4,6) and (-8,-2)

umka2103 [35]

The formula to find the midpoint of a segment is ((x1 + x2)/2,),(y1 + y2)/2).

The x coordinate of the first point is -4, and the x coordinate of the second point is -8. The y coordinate of the first point is 6, and the y coordinate of the second point is -2. Now, we can plug these into our formula.

((-4 + (-8))/2), (6 + (-2))/2)) = (-12/2), (4/2) = (-6, 2)

So, (-6, 2) is the midpoint of the segment.

4 0

2 years ago