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marshall27 [118]
3 years ago
15

What expression is equivalent to 12 - 1/2(x + 12)

Mathematics
1 answer:
lyudmila [28]3 years ago
7 0
Distribute the -1/2 to both x and 12

-1/2(x) = -1/2x
-1/2(12) = -6

12 -  (-1/2x) - 6

Simplify: Note, two negatives = one positive

12 + 1/2x - 6

Simplify: combine common numbers together

12 - 6 + 1/2x

6 + 1/2x


1/2x + 6 is your equivalent expression


hope this helps
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Can some please help me I will mark u brilliant
brilliants [131]

Question 2: -4/3

Question 3: -7/20

6 0
2 years ago
Write the expression in terms of sine only sin 9x cos 9x
Usimov [2.4K]
\sin 2\alpha= 2\sin \alpha\cos\alpha\quad\Rightarrow\quad\sin 9x\cos 9x=\frac{1}{2}\sin 18x
6 0
3 years ago
The prism has a volume of 120 cm3. What would the volume of the prism be if each dimension were halved? cm3 Triangular prism wit
Citrus2011 [14]
The volume of a triangular prism is V = 1/2 x a x c x h where a is height of the triangle, c is the base of the triangle and h is the height of the prism.
120 = 1/2 x a x c x h; we write a from the previous equation in terms of c and h thus,
a = 240 / ( c x h)
If the dimensions where halved then a = a/2 ; c = c/2 ; h=h/2
We use the volume formula again and substitute the given values to find the new volume,
V = 1/2 x a/2 x c/2 x h/2
Substitute the previously determined a term,
V = 1/2 x (240/2ch) x c/2 x h/2
We cancel and evaluate the constants therefore the new volume is,
V= 15 cm^3
3 0
3 years ago
45 Points, Question 2 In Attachment. Asap if possible.
Masja [62]

Answer: x = \frac{-5}{2}

Step-by-step explanation:

3^{4x-5} = (\frac{1}{27}) ^{2x+10}

1/27 can be written in index form as 3^{-3}

The equation then becomes:

3^{4x-5} = (3^{-3})^{2x+10}

Equating the coefficient

4x - 5 = -3 ( 2x + 10)

4x - 5 = -6x - 30

10x = -30 + 5

10x = -25

x = -25/10

x = -5/2

x = - 2.5

4 0
3 years ago
What is the area of a flour tortilla that has a 14-centimeter radius?
kykrilka [37]
The formula for the area of a circle is
\pi {r}^{2}
so you simply plug your value for radius into the equation!
\pi {(14)}^{2}
Square 14
196\pi
And Multiply by pi!
615.75 cm^2 approximately!
I hope this helps!
5 0
3 years ago
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