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TiliK225 [7]
4 years ago
15

Solve the system of equations y=2x+1 y=x^2+2x-8

Mathematics
1 answer:
Lemur [1.5K]4 years ago
7 0

Answer:

(3,7) and (-3,-5)

Step-by-step explanation:

To solve the system of equations, graph both functions. The (x,y) point(s) where the functions intersect is the solution(s).

See attached picture.

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Part A: Find the LCM of 8 and 9. Show your work.
enot [183]
A: 8*9= 72 or  72 because it is the lowest multiple of 8 and 9
B: euclidean theorem (35,63) (35,28) (7,28) (7,0) gcf= 7 or  7 because 7 is the biggest number that goes into both numbers.
C: 7(5+9) or  35 is a factored into 7 and 5 and 63 is factored into 7 and 9 and 9 is factored into 3 and 3
7 0
3 years ago
How do i solve this equation: 4/5a + 3 = 1/3a - 8
DENIUS [597]
You have to subtract by \frac{1}{3}a on EACH of  the sides you're working with!

\frac{4}{5}a + 3 - \frac{1}{3}a - 8 - \frac{1}{3}a

Which gives us: \frac{7}{15}a + 3 = -8

Now, that we got these steps out of the way, let's subtract 3 from the sides you're working with! 

\frac{7}{15}a  + 3 - 3 \\ = -8 -3

 \frac{7}{15}(a) = -11

We have gotten these  steps out of the way now lets multiply by \frac{15}{7} on your sides because, it is the reciprocal of \frac{7}{15}

So,  \frac{15}{7}( \frac{7}{15}a ) =  \frac{15}{7}  (-11)

Cancel out: \frac{15}{7}( \frac{7}{15} ) because, it equals to:1

\frac{15}{7}(-11) =   \frac{-165}{7}

Therefore, your answer is:  \frac{-165}{7} aka 23\frac{4}{7} 

Good luck on your assignment and enjoy your day

~MeIsKaitlyn:)


5 0
3 years ago
Evaluate j/k -0.2k when j =25 and k = 5
denis-greek [22]
When you have an equation that has variables and you know the value of those variables, just plug it it. So plugging the vaules we get
\frac{25}{5}-\frac{1}{5}5
Just evaluating we get 4
5 0
3 years ago
Read 2 more answers
Pls explain your answer
lozanna [386]
B is true because the second graph has a lower average
5 0
3 years ago
Monique is factoring the expression 4 x + 16 x y. Her work is shown below.
pickupchik [31]

Answer:

Step-by-step explanation:

4x + 16xy

GCF is 4x

4x(1 + 4y) <===== this is the correct one

4 0
4 years ago
Read 2 more answers
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