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3 years ago

PLEASE PLEASEEEEEEE HELPPPPPPPP

Mathematics

2 answers:

Rufina [12.5K]3 years ago

7 0

Answer:

Set 2 x 2 − 6 x − 8 equal to 0 . 2 x 2 − 6 x − 8 = 0

Step-by-step explanation:

Those are the zeros

Please give me brainliest

soldier1979 [14.2K]3 years ago

7 0

So you definately wrote something wrong but I will assume the 6x^2 was meant to be just 6x.

2x^2 + 6x + 2 = 0

x^2 + 3x + 1 = 0

I can't seem to find a better way than to simply use the quadratic formula:

(-3 + sqrt(9 - 4*1*1))/2 $\approx$ -0.382

(-3 - sqrt(9 - 4*1*1))/2 $\approx$ -2.62

So the zeroes for this function are at

(-0.382, 0) and (-2.62, 0)

Or exactly:

((-3 + sqrt(9 - 4*1*1))/2, 0) and ((-3 - sqrt(9 - 4*1*1))/2, 0)

You might be interested in

You paid $44 to a loan company for the use of $1,153 for 119 days, what annual rate of interest did they charge? (Assume a 360-d

Zigmanuir [339]

Answer:

Ans. A) The annual rate that the company charged was 11.996%; B) if they charged you 11.186% annual rate, you would have to pay $41.14

Step-by-step explanation:

Hi, first we have to find out what is the effective 119 days rate and then turn it into an annual rate. This is as follows.

$r(Effective119Days)=\frac{44}{1,153} x100=0.038161$

So the charged rate was 3.816% effective, 119 days, now let´s make it an annual rate.

$r(annual)=(1+0.038161)^{\frac{360}{119} } -1=0.119965$

This means that the equivalent rate to 3.816% effective 119 days ys 11.996% effective annually (or just annual).

Now, if they were to charge you 11.186% annual, you would have to make this rate effective 119 days, and then, multiply it by the principal ($1,153). Let´s change the rate first.

$r(Effective119Days)=(1+0.11186)^{\frac{119}{360} -1}=0.03568$

And the money that you will have to pay in interest is $1,153*0.03568=$41.14

Best of luck

7 0

3 years ago

Peter won £75 as a prize.He gave 4/5 of the prize money as a present to Roger and Bethan.Roger and Bethan shared the present in

Molodets [167]

Roger: $24
Bethan: $36

Explanation:
4/5 of $75 is $60

So $60 is distributed to Roger and Bethan in the ratio 2 : 3.

Add the numbers in the ratio 2 : 3
2 + 3 = 5

Divide $60 by 5
60 ÷ 5 = 12

Multiply each number in the ratio 2 : 3 by 12:
2 • 12 : 3 • 12
= 24 : 36

I’m sorry if I explained this badly
But if my answer was correct, brainliest please!
Have a nice day!
-SpaceMarsh :D

7 0

2 years ago

Chase baked 4/5 dozen brownies in 3 hours ? What is her average of baking per hour ?

loris [4]

Answer:

$3\frac{1}{5}$ brownies per hour

Step-by-step explanation:

Given parameters:

Number of brownies = $\frac{4}{5}$ of a dozen

Time taken = 3hrs

Unknown:

Average baking per hour = ?

Solution:

The average baking per hour;

This is a rate problem;

Average baking per hour = $\frac{number of baking}{time}$

Number of brownies = $\frac{4}{5}$ x 12 = $\frac{48}{5}$

Average baking per hour = $\frac{48}{\frac{5}{3} }$

= $\frac{48}{5} x \frac{1}{3}$

= $\frac{16}{5}$

= 3 $\frac{1}{5}$ brownies per hour

8 0

3 years ago

Use the drop-down menus to complete each statement to describe the relationship between the number of yards and the number of fe

juin [17]

<h2>Explanation:</h2>

The yard, whose symbol is yd, is standardized as 0.9144 meters since 1959. The unit system that use it is both the imperial and the US units. On the other hand, the foot, whose symbol is ft, is standardized as 0.3048 meter. It is also used by the imperial and US units. The relationship between these two units is:

$1yd=3ft \\ \\ 1ft=1/3yd$

6 0

3 years ago

At the burger shop the ratio of regular sodas to diet sodas sold was 3:6. For every __ diet sodas sold there are __ regular soda

lianna [129]

for every 1 diet soda sold there are 2 regular sodas sold.

hope this helps:)

7 0

2 years ago