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joja [24]
3 years ago
6

Could someone help with this?

Mathematics
1 answer:
Citrus2011 [14]3 years ago
3 0

the answer is 4 and 7                

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24 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
scoundrel [369]
First, find your total sales. You do this by adding all the sales together, 2030+1540+1800=5370. Now, for each person, divide their sales by total sales.
Lola) 2030/5370=203/537≈0.378=37.8%
Ahmed) 1540/5370=154/537≈0.287=28.7%
Tommy) 1800/5370=180/537=60/179≈0.335=33.5%
5 0
3 years ago
Determine the equation of the line that passes through the points of intersection of the graphs of the quadratic functions f(x)
timofeeve [1]

Answer:x-2y-2=0

Step-by-step explanation:

Given :

f(x) = x^2 - 4 \\ g(x) = - 3x^2 + 2x + 8

Point of intersection :

f(x)=g(x)\\x^2-4=-3x^2+2x+8\\4x^2-2x-12=0\\2x^2-x-6=0\\2x^2-4x+3x-6=0\\2x(x-2)+3(x-2)=0\\(x-2)(2x+3)=0\\x=2\,,\,\frac{-3}{2}

x=2\,;f(2)=2^2-4=0\\x=\frac{-3}{2}\,; f\left ( \frac{3}{2} \right )=\left ( \frac{3}{2} \right )^2-4=\frac{-7}{4}=-1.75

So, we have points \left ( 2,0 \right )\,,\,\left ( -1.5,-1.75\ \right )

Equation of line passing through two points \left ( x_1,y_1 \right )\,,\,\left ( x_2,y_2 \right ) is given by y-y_1=\frac{y_2-y_1}{x_2-x_1}\left ( x-x_1 \right )

Let \left ( x_1,y_1 \right )=\left ( 2,0 \right )\,,\,\left ( x_2,y_2 \right )=\left ( -1.5,-1.75\ \right )

So, equation is as follows :

y-0=\frac{-1.75-0}{-1.5-2}\left ( x-2 \right )\\y=\frac{-1.75}{-3.5}\left ( x-2 \right )\\y=\frac{1}{2}(x-2)\\2y=x-2\\x-2y-2=0

4 0
4 years ago
jayson buys a car and pays by installments.each installmentsis $567 per month.after 48 month, jayson owes $1250. what was the to
puteri [66]

Let

T--------> the total price of the vehicle

x--------> amount paid

y--------> amount owed

we know that

the total cost of the vehicle is equal to the amount paid plus the amount owed

so

T=x+y

<u>Find the amount paid</u>

x=567*48\\ x=27,216\ dollars

<u>Find the amount owed</u>

y=1,250\ dollars

<u>Find the total cost of the vehicle</u>

T=x+y\\ T=27,216+1,250\\ T=28,466\ dollars

therefore

the answer is

the total price of the vehicle is 28,466\ dollars

7 0
3 years ago
Read 2 more answers
WILL MARK BRAINLIEST Which expression is equivalent to −1.3 + (−4.9 ) + (−2.6) ?
Furkat [3]
You can remove the first plus sign to give:
-1.3 -4.9 [ because + x - = - ]
and by the same rule you can remove the the second plus sign to give
-1.3 -4.9 - 2.6
That means option b is out because it is positive. 
straight away we can see that option D. equals the result, so it is in the running, so now can we eliminate c and a?
we can eliminate a because the  minus ign outside the bracket multiplied by -4.9 inside the bracket produces + 4.9, which is not the answer, so that only leaves c. 
once again, a plus sign outside the bracket does not produce -4.9 when muliplied by  4.9 inside the bracket inside option c, so we can eliminate option c.

~
Answer (D) 

6 0
3 years ago
marc bought a new video game for $50. After beating the game he sold.it for 20% less than the orginal price. How much did he sel
Arlecino [84]
The answer would be $40.
3 0
3 years ago
Read 2 more answers
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