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3 years ago

Which of the following correctly shows the quadratic form

Mathematics

1 answer:

9966 [12]3 years ago

5 0

The answer is a...........

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a student needs three pieces of wire for a part project the second piece must be four times as long as the first the third piece

ollegr [7]

First piece is x
second piece is y. y=4x
third piece is z. z=3y=12x

x+y+z=680
x+4x+12x=680
17x=680. x=40cm y=160cm. z=480cm

8 0

4 years ago

Janet and her brother John went out to eat. Both paid the same amount. Janet got three burgers and left a $10 tip. John bought 4

lianna [129]

Answer:

Cost for 1 burger = 5 $

Amount spent by Janet = 25$

Amount spent by John = 25$

Explanation:

Let the cost for burger be p.

Janet got three burgers and left a $10 tip

Amount spent by Janet = 3 p + 10

John bought 4 burgers, but only left a $5 tip

Amount spent by John = 4 p + 5

Both paid the same amount.

So, we have 3 p + 10 = 4 p + 5

=> p = 5 $

So, cost for 1 burger = 5 $

Amount spent by Janet = 3 x 5 + 10 = 25$

Amount spent by John = 4 x 5 + 5 = 25$

6 0

3 years ago

What is the value of x? X - 9 = 21

bekas [8.4K]

Answer:

X=30

Step-by-step explanation:

First do the inverse which is 9 add 21 which is 30

Then u do 30-9 which equals 21 to clarify the answer

7 0

3 years ago

Read 2 more answers

Lindsay's mom is deciding between two places for Lindsay's 18h birthday party. Stars and Strikes charges $150 plus $2 per person

marta [7]

The answer is 5$ because the difference if it is 7 dollars per person at Sky zone a d only 2 dollars per person at Sa
tars and Strikes, you would be subtracting 2 from 7 so the answer would be 5

6 0

3 years ago

The number N(t) of supermarkets throughout the country that are using a computerized checkout system is described by the initial

GenaCL600 [577]

${N(t)(1-0.0004N(t)=0.9996e^t$

Step-by-step explanation:

$\frac{dN}{dt}=N(1- 0.0004N)$

$\Leftrightarrow\frac{dN}{N(1-0.0004N)}=dt$

$\Leftrightarrow (\frac{1}{N} +\frac{0.0004}{(1-0.0004N)} )dN = dt$

Integrating both sides

$log N-log(1-0.0004N)=t +C$ [ where C integrating constant]

$\Leftrightarrow logN(1-0.0004N) =t +C$

Given condition N=1 when t=0

$log1(1-0.0004)=0+C$

$\therefore C = log(0.9996)$

Therefore $logN(1-0.0004N)-log 0.9996=t$

$\Leftrightarrow {N(t)(1-0.0004N(t)=0.9996e^t$

8 0

3 years ago