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katen-ka-za [31]
3 years ago
13

When multiplying decimals how do you know where the decimal goes

Mathematics
1 answer:
Reil [10]3 years ago
4 0
When your multiplying with a decimal how many spaces there are behind the decimal thats how many spaces you move the decimal when you find your new number.
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Find the x-intercepts for the parabola defined
Inessa05 [86]

Answer:

<h2>Explanation:</h2>

In this exercise we have the following equation of a parabola:

y=2x^2-12x+10

So our goal is to find the x-intercepts. We can find this setting y=0, so:

2x^2-12x+10=0

Taking 2 as common factor:

2(x^2-6x+5)=0

Hence this is a Non-perfect Square Trinomial. To factor out this, let's choose two numbers such that:

  • The sum is -6
  • The product is 5

Those two numbers are:

  • -1 and -5

Because:

  • Sum: -6
  • Product: 5

So this equation can be written as:

x^2 + (a + b)x + ab=(x + a)(x + b) \\ \\ a=-1 \\ b=-5 \\ \\  x^2-14x+24=(x-(-1))(x-(-5))=0 \\ \\ (x+1)(x+5)=0 \\ \\ So \ the \ solutions \ are: \\ \\ \boxed{x=-1 \ and \ x=-5}

<h2>Learn more:</h2>

Solutions to quadratic equation: brainly.com/question/13742278#

#LearnWithBrainly

5 0
3 years ago
HELP PLEASE ASAP NO LINKS OR SCAMS ​
kozerog [31]

Answer:

1

   a. 5

   b. 32

   c.  130

   d. 26

2

    a. 5.65234

    b. 5652.34

    c. 8.1253758

    d. 8125375.8

Step-by-step explanation:

3 0
3 years ago
Find the midpoint of the segment with the following endpoints.<br> (8,4) and (2,7)
Fudgin [204]

Answer:

Step-by-step explanation:

Use the midpoint formula: \frac{ChangeInX}{2} ,\frac{ChangeInY}{2}

So, the Change In X is 2-8 = -6

And the Change in Y is 7-4 = 3

Once you divide both of the changes by 2, you get

X: -3

Y:  \frac{3}{2}

So the midpoint is: (-3,\frac{3}{2})

4 0
3 years ago
Tan(x) = 2<br>solve for x.
lys-0071 [83]

Answer:

x = 63.43 , 243.43 degrees   for  0 <x < 360.

Step-by-step explanation:

tan x = 2

The angle in the first quadrant whose tangent is 2 is x =  63.43 degrees.

If we consider the range  0  < x < 360 degrees tan x is positive in the third quadrant so x is also 180 + 63.43 = 243.43 degrees.

8 0
3 years ago
A swimmer dives to 65 feet below the surface of the ocean. Write the integer that represents the depth of the dive
Slav-nsk [51]

Answer:

The integer is -65

Step-by-step explanation:

Hope that helps

7 0
4 years ago
Read 2 more answers
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