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murzikaleks [220]
3 years ago
14

21x + 862=? x= 4 I know how to do it but im too lazy to do it

Mathematics
1 answer:
LuckyWell [14K]3 years ago
3 0

946

Hope this helps o(*^▽^*)┛

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HELP !!!!!!!!!!!!!!!!!!
4vir4ik [10]

Answer:

<u>answer is C ( </u>3^{4}<u> )</u>

Step-by-step explanation:

so here is how you do it.

first you need to find out what 3^{8} is

which is the same as 3 X 3 X 3 X 3 X 3 X 3 X 3 X 3

the answer to that is 6,561

then you have to square root that

which looks like this

\sqrt{6,561}

which is 81

which means that you have to find the same expression that equals to 81

I then did 3^{4} (C) to see if the answer will be 81 and it is. so your answer is C

3 0
3 years ago
The perimeter of a rectangular garden is 860 ft. the two short sides of the garden are each 30 ft long. you are asked to find th
garik1379 [7]
<span>2(30)+2x=860 

This is because the 4 sides of the rectangle add up to the perimeter. 
The unknown side is x, and there are two of those, and there are also two sides of 30. 
They all add up to the perimeter. 

So: 
2(30) + 2x = 860</span>
4 0
3 years ago
The directrix is the point where the parabola changes direction?<br> True or False
sergij07 [2.7K]
False
Because the parabola
5 0
4 years ago
Y=-x2<br> What is the graph
Mama L [17]

Answer:

photo math

Step-by-step explanation:

pohto math is very helpfull and it shows the graphs

3 0
4 years ago
You can model the entrance to a mine shaft using the equation
Furkat [3]

y=-1/2 2 (x+4)(x+-4+

-1/2*2 = -1

y=-1(x+4)(x-4)

solving for x

x - -4 and x =4

-4 to 4 = 8 feet

 width = 8 feet

4 0
4 years ago
Read 2 more answers
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