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ioda
3 years ago
12

Plz help me with this question

Mathematics
1 answer:
Monica [59]3 years ago
7 0

Answer:B

Step-by-step explanation:

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Pwease help me anyone. thanks :-) :-) :-) :-) :-) :-) :-) :-)!!!!
adell [148]
A)
x+3

b)
x(x+3)=340\\
x^2+3x-340=0

c)
x(x+3)=340\\ x^2+3x-340=0\\
\Delta=3^2-4\cdot1\cdot(-340)=9+1360=1369\\\sqrt{\Delta}=37\\
x_1=\dfrac{-3-37}{2}=-20\\
x_2=\dfrac{-3+37}{2}=17

It's 17.
3 0
3 years ago
The average value of all the pennies, nickels, dimes, and quarters in Paula's purse is 20 cents. If she had one more quarter, th
sveta [45]

Answer:

Step-by-step explanation:

The average value of all the pennies, nickels, dimes, and quarters in Paula's purse is 20 cents. If she had one more quarter, the average value would be 21 cents. How many dimes does she have in her purse

7 0
1 year ago
An item that was selling for $72.00 was reduced to $60.00. Find the percent decrease in price. Show all your work.
dsp73
The formula to figure out the percentage increase or decrease is: 
<span>(new - old) / old * 100% </span>

<span>new = 60 </span>
<span>old = 72 </span>

<span>(60 - 72) / 72 * 100% </span>
<span>-12 / 72 * 100% </span>
<span>= -1/6 * 100% </span>
<span>= -0.1666... * 100% </span>
<span>≈ -16.667% </span>

<span>Because it is negative, that's a decrease. </span>

<span>Answer: </span>
<span>A decrease of about 16.7%</span>
8 0
3 years ago
The correct hand signal to indicate a right turn i
RoseWind [281]

Answer:

<em>D</em><em>)</em><em> </em><em>hand</em><em> </em><em>and</em><em> </em><em>arm</em><em> </em><em>extended </em><em>upward</em><em> </em><em>.</em><em>.</em><em>.</em>

<em>is</em><em> </em><em>your</em><em> </em><em>answer</em><em> </em>

<em>d</em><em>)</em><em> </em><em>hand</em><em> </em><em>and</em><em> </em><em>arm</em><em> </em><em>extended</em><em> </em><em>upward</em><em>.</em><em>.</em><em>.</em>

3 0
3 years ago
Read 2 more answers
Someone help plz plz
Rashid [163]

Answer:

8

Step-by-step explanation:

don't start with 2, start with 0

6 0
3 years ago
Read 2 more answers
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