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sweet-ann [11.9K]
3 years ago
7

This parabola can be modeled by the quadratic function y = 0.00012x2 + 6, where x represents the distance form the axis of symme

try and y represents the height of the cables.  The related quadratic equation is 0.00012x2 +6 = 0.
Calculate the value of the discriminant.

a.
-0.00056
c.
-0.00126
b.
-0.00288
d.
-0.00078
Mathematics
1 answer:
kicyunya [14]3 years ago
8 0
The discriminant,

\Delta=b^2-4ac

From, 

ax^2+bx+c=0

So,

\Delta=-4(0.00012)6=-0.00288
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The same Honey is sold in two different size jars. Large jar= 540g for £4.10 Small jar= 360g for £2.81. By considering the amoun
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Answer:

From our calculations the large jar is the best value for money because a penny buys more honey

Step-by-step explanation:

<h2>In this problem we are expected to determine which purchase of honey is the cheapest ? large jar or small jar ?.</h2><h2 />

We will determine which has the best value for money using the quantity a pound can purchase.  

firstly for the large jar.

if £4.10 will purchase 540g of honey then,

   £1.00 will purchase xg

cross multiplying to find x will have

x=  \frac{1.00*540g}{4.10}

x= 131.7grams

Hence for the large jar a penny would buy 131.7g of honey

secondly for the small jar

if £2.81 will purchase 360g of honey then,

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cross multiplying to find x will have

x=\frac{1.00*360g}{2.81}\\x= 128.1gram

Hence for the small jar a penny would buy 128.1g of honey

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3 years ago
What is the value for y?<br> Enter your answer in the box.<br> y=
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Answer:

y =112

Step-by-step explanation:

Given

The attached triangle

Required

Find y

The attached triangle is isosceles; so:

x - 5=34

Also, we have:

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Substitute: x - 5=34

y + 34 + 34=180

Collect like terms

y =- 34 - 34+180

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3 years ago
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