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Lapatulllka [165]
3 years ago
10

Nathaniel is usin the quadratic formula to solve 0 = x^2+5x - 6

Mathematics
2 answers:
Verizon [17]3 years ago
7 0
It helps to memorize the quadratic formula as a song. Try in the tune of pop goes the weasel. The quadratic formula is -b. Plus or minus the square root. Of b squared minus 4ac. All over 2a! Just plug in the numbers and you should get an answer. Let me know if you need more help :)
ella [17]3 years ago
7 0
You haven't shared what you're supposed to do here.  Instructions?

If you want to find the roots of <span>0 = x^2+5x - 6, identify the coefficients of the x terms as follows:  a=1, b=5 and c= -6.

                 -5 plus or minus sqrt( 25-4(1)(-6) )
Then x = -------------------------------------------------
                                          2
                  -5 plus or minus sqrt(49)
             = ------------------------------------
                                       2

Thus, there will be two unequal, real answers.  Please finish the math and identify these answers.</span>
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3 years ago
If you are making a scale drawing of a giraffe that is 6m tall, and the height of the giraffe in your drawing is 3 cm, what is t
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A customer goes to a bank and gets change for a $100 bill. The change is to be in $1, $5, and $10 bills. There were four times a
alexira [117]

Answer:

12

Step-by-step explanation:

x = number of $1 bills

y = number of $5 bills

z = number of $10 bills

We know that:

x + y + z = 25 (total amount of bills)

x + 5y + 10z = 100 (total amount of money)

y = 4z (Given)

Substitute the third equation into the first one.

x + 4z + z = 25

x = 25 - 5z

Put this into the second equation.

(25 - 5z) + 5 (4z) + 10z = 100

Simplify and solve.

25 - 5z + 20z + 10z = 100

25z + 25 = 100

25z = 75

z = 3

Substitute this into y = 4z

y = 4 * 3

y = 12

So, there are 12 $5 bills.

5 0
2 years ago
Read 2 more answers
What is the quotient of 6.591 times 10^7 6 and 8.45 times 10^2 expressed in scientific notation?
Mumz [18]

Answer:

7.8 x 10^4 or 7.8e4 hope this helps!

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2 years ago
Choose the quadrilateral that is not a rhombus of congruent sides and two angle that each measure 120 degrees
Amanda [17]

Answer for the above question is <u>option C</u>

<u>Step-by-step explanation:</u>

<u>Option C -</u>  It's a quadrilateral but not a rhombus . As we know rhombus has congruent sides while its two angle can't be measured 120 degrees but in option C it seems two vertically opposite angles of to be 120 degrees. In rhombus opposite angles are same while adjacent angles are supplementary. All options except C are the rhombus of congruent sides.

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2 years ago
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