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Cloud [144]
3 years ago
5

How do I rewrite the expression as a multiple of a sum of 2 numbers with no common factor? 30 + 12

Mathematics
2 answers:
lys-0071 [83]3 years ago
7 0
2x(8+13)

Because 2x8=16 &
2x13=26

26+16=42 which is the same as the 30+12.

It basically looks like this: 2x8+2x13.
There's also the rule that you have to solve the multiplication before the addition one.

(2x8)+(2x13) also works
alexgriva [62]3 years ago
6 0
The common factor is 3
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6 0
3 years ago
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2(4x-1)+3=7<br> i'm little confused on this
Ratling [72]

Answer:

x = \frac{3}{4}

Step-by-step explanation:

Since you cannot subtract -1 from 4x, you multiply 2 × 4x = 8x

Now, you have 8x - 1 + 3 = 7

Seperate the 8x from the other numbers

8x = 1 - 3 + 7 ---> 6

8x = 6

Now simplify

x = \frac{6}{8}  <----- to reduce, divide the numerator and denominator by 2

Hence,

x =  \frac{3}{4}

4 0
3 years ago
The polygons in each pair are similar. Find the scale factor of the smaller figure to the larger figure
Cloud [144]

Answer:

1:2

Step-by-step explanation:

5 0
3 years ago
Solve using algebraic equation: <br> 5sin2x=3cosx<br><br> (No exponents)
DaniilM [7]
5\sin2x=3\cos x\iff10\sin x\cos x=3\cos x

by the double angle identity for sine. Move everything to one side and factor out the cosine term.

10\sin x\cos x=3\cos x\iff10\sin x\cos x-3\cos x=\cos x(10\sin x-3)=0

Now the zero product property tells us that there are two cases where this is true,

\begin{cases}\cos x=0\\10\sin x-3=0\end{cases}

In the first equation, cosine becomes zero whenever its argument is an odd integer multiple of \dfrac\pi2, so x=\dfrac{(2n+1)\pi}2 where n[/tex ]is any integer.\\Meanwhile,\\[tex]10\sin x-3=0\implies\sin x=\dfrac3{10}

which occurs twice in the interval [0,2\pi) for x=\arcsin\dfrac3{10} and x=\pi-\arcsin\dfrac3{10}. More generally, if you think of x as a point on the unit circle, this occurs whenever x also completes a full revolution about the origin. This means for any integer n, the general solution in this case would be x=\arcsin\dfrac3{10}+2n\pi and x=\pi-\arcsin\dfrac3{10}+2n\pi.
6 0
3 years ago
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s344n2d4d5 [400]
1,514,933 is the answer
6 0
3 years ago
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