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madam [21]
3 years ago
7

PLEASE HELP ME!!!!!!! VERY CONFUSED AND I NEED THIS!!!!

Mathematics
2 answers:
4vir4ik [10]3 years ago
6 0
I believe the answer should be

irga5000 [103]3 years ago
6 0
3a^3b^2square root 7b
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Please help me with this
Ne4ueva [31]

Answer:

Option c

Step-by-step explanation:

A system of equations are given to us. And we need to solve them . The given system is

\begin{cases} y = 2x - 3\dots 1 \\ y = x^2 - 3\dots 2 \end{cases}

We numbered the equations here . Now put the value of equation 1 in equation 2 that is substituting y = 2x - 3 in eq. 2 .

\implies y = x^2 - 3 \\\\\implies 2x - 3 = x^2 - 3 \\\\\implies x^2 - 2x = 0 \\\\\implies x(x-2) = 0 \\\\\implies\red{ x = 0 , 2 }

We got two values of x as 0 & 2 . Alternatively substituting these values we have ,

\implies y = 2 x - 3 \\\\\implies y = 2(0)-3 \qquad or \qquad y = 2(2)-3 \\\\\implies y = 0-3 \qquad or \qquad 4 - 3 \\\\\implies \red{ y = -3 , 1 }

Thefore the required answer is ,

\red{Option\:c} \begin{cases} (0,-3) \\ (2,1) \end{cases}

4 0
3 years ago
Read 2 more answers
What is the perimeter of a square whose diagonal is 10 centimeters? Round to the nearest tenth, if necessary.
Alinara [238K]

Answer:

D

Step-by-step explanation:

I hope this correct and have a great day

6 0
3 years ago
A certain restaurant sells coffee for 2.00 and donuts for 1.50. If the restaurant sold 80 items and earned 141.50 how many donut
Korvikt [17]

Answer:

$280

Step-by-step explanation:

if you do 2.00+1.50 you get 3.50. Then you do 3.50 ×80 you get 280 dollars

6 0
4 years ago
What are the solutions to 2x^2-3x-5=0
olasank [31]
Well you have to factor first factoring gives you two value that you can multiply and get you a broken down version of that
you can do it two ways using the quadratic formula to factor or if you're really good at factoring just do it mentally (2x-5)(x+1)=0
for the mental way of doing the factors just set both 2x-5 equal to zero and x+1 = to zero
2x-5=0
2x=5
x= 5/2

x+1=0
x=-1

therefore the solutions are x = 5/2,-1
but if you want to learn how to do it mentally and with the quadratic function formula
let me know
8 0
3 years ago
Read 2 more answers
Kim's softball team is playing in the championship game. They are losing by a score of 17 to 6. There are 4 innings to go. Kim w
meriva
(how many more needed) divided by (how many innings left)
17-6=11
4 left


11/4=2.75

needs to score 2.75 per inning (even though you can't score 0.75 point)
7 0
3 years ago
Read 2 more answers
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