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rodikova [14]
3 years ago
11

Which expression is equivalent?

Mathematics
1 answer:
Dafna11 [192]3 years ago
5 0

Distribute the -9 into the values in the parentheses.

-9(-2x-3)

-9*-2x=18x

-9*-3=27

Therefore, the equation then becomes: 18x+27.

<u>The answer is the first choice, or A.</u>

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Which is the same as moving the decimal point 3 places to the right in a decimal number
BlackZzzverrR [31]

Answer:

Moving the decimal 3 places to the right in a decimal number is the same as multiplying the number by 1000.

8 0
3 years ago
5/8 divided by 7/10 for the lowest fraction
o-na [289]

Answer:

5/8 ÷ 7/10 = 25/28

Uh i believe this is the lowest fraction it can go to

7 0
3 years ago
Read 2 more answers
Divide (-3х + 4 + 18х^2 )by (5 + 6x)
Leokris [45]

Answer:

The division will be represented as:

\frac{18x^{2}-3x+4}{6x+5}=(3x-3)+\frac{19}{6x+5}

Step-by-step explanation:

1) Let's find a number with a variable that multiplied by 6x gives as 18x². It will be 3x, because (6x+5)3x=18x²+15x.

Now, let's subtstract:

(18x^{2}-3x+4)-(18x^{2}+15x)=-18x+4

2) Let's find a number with a variable that multiplied by 6x gives as -18x. It will be -3, because (6x+5)(-3)=-18x-15.

Now, let's subtstract:

(-18x+4)-(-18x-15)=19  

Therefore, the division will be represented as:

\frac{18x^{2}-3x+4}{6x+5}=(3x-3)+\frac{19}{6x+5}

I hope it helps you!    

5 0
3 years ago
HELP!! 4 people work an event where they make $156, They split the money evenly
Marina CMI [18]

Answer:

$34

-----------------------

6 0
3 years ago
Please help!!!! the question is in screenshot
andreev551 [17]

Answer:

-\cos nw_0t

Step-by-step explanation:

We can use the double angle identity for sine.

\sin (A+B)=\sin A \cos B+\sin B\cos A

The given expresion is

\sin (nw_0t-90)

We apply the identity to get:

\sin (nw_0t-90)=\sin nw_0t \cos 90-\cos nw_0t \sin 90

We simplify to obtain;

\sin (nw_0t-90)=\sin nw_0t (0)-\cos nw_0t (1)

This simplifies to:

\sin (nw_0t-90)=-\cos nw_0t The correct answer is D

8 0
3 years ago
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