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erastovalidia [21]
3 years ago
11

Solve x2 + 4x + 8 = 0.

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
5 0
X^2 + 4x + 8 = 0
( x + 2 ) ( x + 2 ) = 0

i am a mathematics teacher. if anything to ask please pm me
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...................................
miv72 [106K]

Answer:

it is A.

Step-by-step explanation:

5 0
3 years ago
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Evaluate 4/3(4 1/5 + x) ÷ 5/2y when x = 3/2 and y = 15
MissTica
So what u do (-72828282)+(-7382828)=(-73838)+n=(-839288n)
8 0
3 years ago
The ___ of a two-dimensional figure can be any side.
schepotkina [342]

Answer:

The area I believe.

Step-by-step explanation:

7 0
3 years ago
Durante a distribuição de bombons para seus netos, vovó Cláudia percebeu que, se distribuísse 11
Aleksandr [31]
<span>During the distribution of bonbons to her grandchildren, Grandma Claudia realized that if she distributed 11 chocolates for each of them, 10 candies would remain. In the meantime, distribute 13 chocolates each of his grandchildren, would lack 6. Based on this information, it is CORRECT to state that the difference between the number of candies and the number of grandchildren is A) 90. B) 30. C) -90. D) -30.

Let n=number of candies,
and c=number of grandchildren
The story expressed in modulo gives the two following equations:
then
mod(n,11)=10  (ten left if each given 11).............(1)
mod(n,13)=-6, or
mod(n,13)=7  (7 left if each given 13)

By enumerating (1), we have
10,21,32,43,54,65,76,87,98,109...
=> 8*11+10=98
By enumerating (2), we have
7,20,33,46,59,72,85,98,101...
=> 8*13-6=98
Hence there are 8 grandchildren and 98 candies.

The difference of the number of candies and the number of grandchildren is therefore 98-8=90.


Another way to get the number of grandchildren is
c=(10-(-6))/(13-11)=8

</span>
5 0
3 years ago
What is the formula for finding the perimeter of a parallelogram?
just olya [345]
The perimeter of a parallelogram is the distance around the outside of the parallelogram. A parallelogram has four sides with opposites sides being congruent. The formula for finding the perimeter is Side A + Side B + Side A + Side B.
3 0
3 years ago
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