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Anettt [7]
4 years ago
15

21+[36/ (12-6)+2-5]x3

Mathematics
1 answer:
vampirchik [111]4 years ago
3 0
The answer is 30 i believe i rewrote it 3 times to check
You might be interested in
What is the negative root of 2x^2 + x − 6 = 0
max2010maxim [7]
Hello! 

Here we can use the quad formula to solve for the x values or roots.
x=(-2+or - \sqrt{2^2-4*2*-6})/2*2 = -2 and 3/2
The negative root for this equation is x=-2

We find the roots of an equation by solving for x by different ways, most common ones being the quadratic formula of x= [-b +/-sqrt(b^2-4ac)]/2a or factoring and setting equal to zero and solving for x value(s) that way. Also the roots are where the graph of the equation crosses the x-axis.



Hope this helps. Any questions please just ask. Thank you kindly
4 0
3 years ago
Identify all of the expressions that simplify to −7/8.
denis23 [38]
5/2 ÷ 7/10
5/2 x 10/7
50/14; 25/7; Answer: 3 4/7

-7/5 ÷ -8/5
-7/5 x 5/8
-35/40
-(-35/40)
-(-7/8). Answer: 7/8


-7/10 x 5/4
-35/40
-7/8. Answer: -7/8


Hoped this helped
5 0
4 years ago
If <br>f(x)=5x+7<br>and<br>g(x)=-2x-4<br>find<br>f(g(x))=___x+___​
USPshnik [31]

Answer:

Step-by-step explanation:

g(x) = -2x - 4

f(-2x -4)

5(-2x - 4) + 7

-10x - 20 + 7

-10x - 13

5 0
4 years ago
Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
kap26 [50]

Answer:

D

Step-by-step explanation:

imagen the inequality sign is a normal equal sign so you would just do it as a normal problem solving for the variable.

so first get n by its self so you start by gettting rid of 8.7, so to cancle it out you minus it by its self and what you do to one side you do to the other.

now you have -2.5n > -3.25

divide it by its self by both sides and you get 1.3

and because you divided by a negative your sign switches to the other side. It’s called the negative division rule

7 0
3 years ago
Read 2 more answers
!!!!!!!!!help pleaseeeeeee
Elden [556K]
Cause AB =  CD so

answer is D.
arc AB = arc CD
8 0
4 years ago
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