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polet [3.4K]
3 years ago
6

Una sucesion aumenta de 0.5 en 0.5 cuales son los primeros 6 terminos si el inicial es uno ???

Mathematics
1 answer:
Tcecarenko [31]3 years ago
6 0
1, 1.5, 2, 2.5, 3, 3.5

Y si no se cuenta el uno:

1.5, 2, 2.5, 3, 3.5, 4.
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Find the value of x in each case. Give reasons to justify your solutions!
levacccp [35]

Answer:

x=13 degrees

Step-by-step explanation:

First, think of the remote interior angle theorem. So basically the remote interior angles that don't share a vertex with the exterior angle is the sum of the exterior angle. So that means ∠EBC+∠BEC=∠ECD. ∠ECD=64 degrees+90 degrees=154 degrees. ∠EBC is equal to 180 degrees minus 3x because line AD is a line so ∠ABE and ∠EBC are supplementary angles so basically they add up to 180 degrees. So the equation is (180-3x)+x=154. Simplify the equation and you should get x=13 degrees:)

7 0
3 years ago
What can you factor out of 2x^2-4x+8
Sunny_sXe [5.5K]

Answer: 2(x^2-2x+4)

Step-by-step explanation:

You can factour out 2:

2(x^2-2x+4)

7 0
3 years ago
Read 2 more answers
A girl can sweep the garage in 20 minutes, while her brother needs 30 minutes to do the same job. How many minutes will it take
Scrat [10]

I'm not sure your question has enough information to be answered properly, but I'll try to help:

Assuming each of them are sweeping 1/2 of the garge, we're gonna cut each of their times in half.

Now the girl needs 10 minutes for half the garage and her brother needs 15 minutes.

So, if they work together, the first ten minutes will overlap each other while the girls brother gets left behind to finish up for an extra five minutes.

So, when working together, the boy and the girl need 15 minutes to sweep the garage.

6 0
4 years ago
Orlando is making a design for a logo. He begins with a square measuring 22 inches on a side.
mestny [16]

Answer: A

Step-by-step explanation:

The first square is 22 inches on a side.

The second is 17.6 inches on a side

the third is 14.08 inches on a side.

We can suppose that we have a constant rate of decrease betwen the sides cubes, this means that:

22in*x = 17.6in

where x is the rate of scale.

x = 17.6/22 = 0.8

Now we test this with the second and third:

17.6in*0.8  = 14.08in

Ok, this works.

then the side of n-th cube can be found with the equation

L = 22*0.8^(n-1)

we can try the different options and see which one gives a value smaller than 10.

A) n = 5

L = 22*0.8^4 = 9.01

Then the correct option is A

7 0
3 years ago
Read 2 more answers
As notas de dois alunos X e Y estão representadas no quadro abaixo. Por meio da variância, qual deles apresentou ser o mais regu
Reil [10]

Answer:

Aluno X

Step-by-step explanation:

A nota média para os alunos X e Y são, respectivamente:

X_m=\frac{5+3+5+7}{4}=5 \\Y_m=\frac{4+9+4+3}{4}=5

A variância é definida pela seguinte expressão:

V=\frac{\sum(X_i-X_m)^2}{n-1}

Onde n é o numero de termos, neste caso, n = 4.

As variâncias para cada aluno são:

V_x=\frac{(5-5)^2+(3-5)^2+(5-5)^2+(7-5)^2}{4-1} \\V_x= 2.7\\V_y=\frac{(4-5)^2+(9-5)^2+(4-5)^2+(3-5)^2}{4-1} \\V_y= 7.3

O aluno X apresentou uma variância menor do que o aluno Y em suas notas e, portanto, apresentou ser o mais regular.

6 0
3 years ago
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