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Grace [21]
2 years ago
6

Explain why x squared -8x+20 is always positive

Mathematics
1 answer:
Tpy6a [65]2 years ago
3 0

Answer:

to square a number you multiply the number by itself.

a positive number times a positive number is a positive number.

a negative number times a negative number is a negative number.

and if you are multiplying 2 numbers with the same sign they will always be a positive number.

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Need help please now
ZanzabumX [31]
It’s A letter A hope this helped
3 0
3 years ago
The ratio of the length 2.0 meters to the length 1.2 meters is
photoshop1234 [79]

Answer:

The Ration of length 2.0 meters  to the length 1.2 meters = 5 : 3

Step-by-step explanation:

The given two length are 2.0 m  and 1.2 m

Length L1 = 2.0 m     And

Length L2 = 1.2 m

SO, The ratio of L1 : L2 = \frac{2.0}{1.2}

Or, The ratio of L1 : L2 =  \frac{20}{12}

∴    The ratio of L1 : L2 =  \frac{5}{3}

Hence The ratio of L1 : L2 is 5 : 3    Answer

4 0
3 years ago
Complete the table of values for y=2xsquared+x
hodyreva [135]

The solution of y= 2x^{2} +x given as:

x:   0      1       2       3

y:   0      3      10      21

<h3>What is Linear Equation?</h3>

A linear equation is an algebraic equation of the form y=mx+b. involving only a constant and a first-order (linear) term, where m is the slope and b is the y-intercept.

Given function is:

y= 2x^{2} +x

For finding the solution of above expression, take value of x and solve for y.

  • If x=0

y= 2(0)+0

y=0

  • If x=1,

y= 2(1)^{2} +1= 3

  • If x=2

y=2(2)^{2} +2=10

  • If x=3

y= 2(3)^{2} +3=21

The required table is:

x:   0      1       2       3

y:   0      3      10      21

Learn more about linear equation here:

brainly.com/question/488051

#SPJ1

8 0
2 years ago
what was the interest rate if your balance on an investment of 857 dollars at the end of six years is 1268.36 dollars​
Mumz [18]
<h3>The interest rate is 8 % if your balance on an investment of 857 dollars at the end of six years is 1268.36 dollars​</h3>

<em><u>Solution:</u></em>

Given that,

Principal = $ 857

Amount = $ 1268.36

Number of years = 6

Rate of interest = ?

Simple Interest = Amount - principal

Simple Interest = 1268.36 - 857

Simple Interest = 411.36

<em><u>Use the formula,</u></em>

Simple Interest = \frac{ p \times n \times r}{100}\\\\411.36 = \frac{ 857 \times 6 \times r}{100}\\\\41136 = 5142 \times r\\\\r = \frac{41136}{5142}\\\\r = 8 \%

Thus the interest rate is 8 %

3 0
3 years ago
Read 2 more answers
Please help me with the photo below thanks
yanalaym [24]

Answer:

A) -12-4-5

B) X^2-X

Step-by-step explanation:

..

..

4 0
1 year ago
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