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Stels [109]
3 years ago
9

See if you are cool enough to do the whole paper. i will give brainliest if correct

Mathematics
1 answer:
Deffense [45]3 years ago
3 0

Answer:

1. (-9.5,0)

2. (2,0)

3.(-1,0)

4.(6.5,0)

5.(-1,4)

6. (0,-4)

7.(4,1)

8. (-8,18)

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For a two week period, John and Amanda had the following transactions occur to their checking account: a deposit of $1,644.50; c
Andru [333]

deposit of $1644.50 is (gain)

check written and deposit are (loses)  subtracted


so total of 3 checks :-   190$   +  45$  +  7.50$   =   242.50$

total of 4 debit cards :-    30$  +  5.59$  +  7.20$  + 21.30$  = 64.09$

total lose amount ( credits + debits )  =   242.50 $  +  64.09$ =  306.59$


Ending balance = Total amount - total loses =  

         1644.50$ -  306.59 $ =  1337.91$

4 0
3 years ago
Let u and v be the solutions to 3x^2 + 5x + 7 = 0. Find u/v+v/u
Hitman42 [59]

Answer:   \dfrac{-17}{21}

Step-by-step explanation:

Given: u and v be are the solutions of  3x^2+5x+7=0

Let  ax^2+bx+c=0 is the quadratic equation and u and v are the zeroes/solutions then

Sum of zeroes;   u+v = \dfrac{-b}{a}

Product of zeroes; uv= \dfrac{c}{a}

Comparing  3x^2+5x+7=0  to  ax^2+bx+c=0

we get a= 3 , b= 5 and c = 7

u+v = \dfrac{-b}{a} = \dfrac{-5}{3}----(i)

uv= \dfrac{c}{a} = \dfrac{7}{3}----(ii)

Now we have to find

\dfrac{u}{v} +\dfrac{v}{u} =\dfrac{u^2+v^2}{uv} adding and subtracting 2uv in numerator we get

= \dfrac{u^2+v^2+2uv-2uv}{uv}= \dfrac{(u+v)^2-2uv}{uv}

Substituting the values from (i) and (ii) we get

\dfrac{(\dfrac{-5}{3} )^2-2\times \dfrac{7}{3} }{\dfrac{7}{3} } = \dfrac{\dfrac{25}{9} -\dfrac{14}{3} }{\dfrac{7}{3} }= \dfrac{\dfrac{25-42}{9} }{\dfrac{7}{3}} =\dfrac{-17}{9} \times \dfrac{3}{7} = \dfrac{-17}{21}

Hence, the value of \dfrac{u}{v} +\dfrac{v}{u}   is  \dfrac{-17}{21}

5 0
4 years ago
Line CD passes through points (0, 2) and (4, 6). Which equation represents line CD?
Vikentia [17]
(0,2)(4,6)
slope = (6 - 2) / (4 - 0) = 4/4 = 1

y = mx + b
slope(m) = 1
use either of ur points (0,2)...x = 0 and y = 2
sub and find b, the y int
2 = 1(0) + b
2 = b

ur equation is : y = x + 2 <==

8 0
4 years ago
Read 2 more answers
What is d in 6d− 2/11 =2d− 2/13?<br> ​
Julli [10]

Answer:

-1/4 or -0.25

Step-by-step explanation:

6 0
3 years ago
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AVprozaik [17]
Y=3x+4.5 is NOT the equation the correct answer is what the person under me typed
5 0
3 years ago
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