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GenaCL600 [577]
4 years ago
15

Use the quadratic formula to find both solutions to the quadratic equation given below 2x^2-3x+1=0

Mathematics
2 answers:
Xelga [282]4 years ago
7 0
The formula is

x=\frac{-b+\sqrt{b^2-4ac}}{2a}

and

x=\frac{-b-\sqrt{b^2-4ac}}{2a}

This gives you 2 results :) Just insert your values
balu736 [363]4 years ago
3 0
A= 2                b= -3          c= 1
firsly need to find <span>discriminant.
D=b^2-4ac
                                                 (D= (-3)^2 - 4*2*1
                                                 D= 1)              
                                                  If  D>0, you get 2 </span><span>solutions.
Then</span><span> formula is:

</span><span><span>x1,2 =                  <span>-b ± √D
                     _____________
</span></span><span>                                  2 a</span></span>   

x1,2=              -(-3)+-(1)              = 3+-1            =  4    or     =  2
                     ____________         ______         ___              __
                            2*2                          4                 4                 4
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Examine the table below showing the merchandising sales and answer the questions that follow.
-BARSIC- [3]

Answer:

The mean amount spent = £14.80

The modal product is hoodies.

Step-by-step explanation:

Here

25 T shirts each costing £10 were purchased

Amount spent on T shirts = 25 × 10 = £250

30 key ring of £5 were purchased

Amount spent on key ring = 30 × 5 = £150

40 Hoodies for £25 each

Amount spent on Hoodies = 40 × 25 =£1000

30 CD's for £15 each

Amount spent on CD's = 30 ×15 = £450

Total amount spent = 250 +150 + 1000 + 450 = £1850

Total items purchased = 25 + 30 + 40 + 30 = 125

Mean amount spent = \frac{1850}{125}= 14.80

The modal product is Hoodies as the maximum number of hoodies were purchased.


6 0
4 years ago
Given a school supply store sells pencils for $2, pens for $4, and markers for $5. Write an expression for the total cost of 3 p
soldi70 [24.7K]

Answer: 29

Step-by-step explanation:

3x2= 6

4x2=8

3x5=15

6+8+15= 29

hoped I helped you a bit! Good luck! :)

3 0
3 years ago
Why equals 2X plus 7Y equals 5X +4 graph the answer
nevsk [136]
You can graph the answer on cymath.com

3 0
3 years ago
1. James and Alexis simplified the expression 5 + 42 - 6/3. James' said the answer is
Trava [24]

Answer:

19

Step-by-step explanation:

5 + 4^2 - 6/3

= 5 + 16 - 2

= 21 - 2

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4 0
3 years ago
The actual length (L) of a rectangle is 27 centimeters. Use the scale drawing of the rectangle to find the actual width (W).
nata0808 [166]

Answer:

18 cm

Step-by-step explanation:

The ratio of Actual length (L) to scale length is 27 : 3.6

27 ÷ 3.6 = 7.5

Therefore, actual width (W) = scale width x 7.5

                                              = 2.4 x 7.5

                                              = 18 cm

6 0
3 years ago
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