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kykrilka [37]
3 years ago
10

-6.3 ⋅ 5=? answer plz

Mathematics
2 answers:
tigry1 [53]3 years ago
6 0

Answer:

Answer

Step-by-step explanation:

-6.3*5= -31.5

slega [8]3 years ago
6 0

Answer:

-31.5

Step-by-step explanation:

multiplication, when there's one negative sign during multiplication just make the answer negative

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The axis of symmetry for the function f(x) = –2x2 + 4x + 1 is the line x = 1. Where is the vertex of the function located?
egoroff_w [7]

Answer:

(1, 3)

Step-by-step explanation:

You are given the h coordinate of the vertex as 1, but in order to find the k coordinate, you have to complete the square on the parabola.  The first few steps are as follows.  Set the parabola equal to 0 so you can solve for the vertex.  Separate the x terms from the constant by moving the constant to the other side of the equals sign.  The coefficient HAS to be a +1 (ours is a -2 so we have to factor it out).  Let's start there.  The first 2 steps result in this polynomial:

-2x^2+4x=-1.  Now we factor out the -2:

-2(x^2-2x)=-1.  Now we complete the square.  This process is to take half the linear term, square it, and add it to both sides.  Our linear term is 2x.  Half of 2 is 1, and 1 squared is 1.  We add 1 into the set of parenthesis.  But we actually added into the parenthesis is +1(-2).  The -2 out front is a multiplier and we cannot ignore it.  Adding in to both sides looks like this:

-2(x^2-2x+1)=-1-2.  Simplifying gives us this:

-2(x^2-2x+1)=-3

On the left we have created a perfect square binomial which reflects the h coordinate of the vertex.  Stating this binomial and moving the -3 over by addition and setting the polynomial equal to y:

-2(x-1)^2+3=y

From this form,

y=-a(x-h)^2+k

you can determine the coordinates of the vertex to be (1, 3)

5 0
3 years ago
Read 2 more answers
Which set of numbers includes only integers?
Lelu [443]

Answer:

{14,23,654,0,9}

Step-by-step explanation:

The first three contain negative numbers and decimal points therefor the last one {14,23,654,0,9} is correct.

3 0
3 years ago
Read 2 more answers
12 x 1) +(6x1000) it has to be decimal form
Firdavs [7]

Answer:

I got 6.012 times 10^3

Step-by-step explanation:

I'm not sure how to make it into decimal form but maybe that number can help you. Hopefully it's correct

6 0
3 years ago
Sin tita + sin ^2 tita = 0
AnnyKZ [126]

Answer:

tita = 0 , 180, 270, 360.   ( tita =  0   ≤ x ≤ 360).

Step-by-step explanation:

sin tita + sin ^2 tita = 0

sin tita( sin tita + 1) = 0

sin tita = 0, - 1.

For angles between 0 and 360 inclusive  sin = 0 gives 0, 180 and 360 degrees.  The angle whose sine is -1 is 270 degrees.

tita = 0 , 180, 270, 360.

3 0
3 years ago
Help me please! BRAINLIEST
masya89 [10]

Answer:

1. 53 by 58 , 222 ft

2. 321000

3.1080

4.  3.5

Step-by-step explanation:

1. 23+15+15 = 53

28+15+15= 58

53+53+58+58= 222

6 0
3 years ago
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