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MariettaO [177]
4 years ago
13

Systems of linear equations iready quiz

Mathematics
1 answer:
saw5 [17]4 years ago
7 0

Answer:

<h2>One solution.</h2>

Step-by-step explanation:

The given question is

<em>Does the following system have One Solution, No Solution, or Infinite Solutions.   </em>

<em />y = 4x + 8\\y = -5x + 3<em />

<em />

<em />

To solve this system, we just need to multiply the first equation by -1, and then sum those equations.

-y = -4x - 8\\y = -5x + 3

0=-9x-5\\5=-9x\\x=-\frac{5}{9}

Then, we use this value to find the other one

y=4x+8\\y=4(-\frac{5}{9} )+8\\y=-\frac{20}{9}+8\\y =\frac{-20+72}{9} \\y=\frac{52}{9}

As you can observe, the system of equations have a unique solution.

Therefore, the answer is one solution.

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PLEASE HELP ASAP!!!!!!
solmaris [256]

the answer would be x=6

to find it you would set 3x-2 equal to 2x+4 and solve because the two sides would be equal if the triangles are congruent

hope this helps :)

4 0
3 years ago
Read 2 more answers
Consconsiderando la función f(x)=x² y la función f (x)=(x+1)²-4responde lo siguiente:
erica [24]

Answer:

Step-by-step explanation:

a) f(x) = x² y f(x) = (x+1)²-4 tienen la misma forma y orientación.

b) f(x) = x² se encuentra debajo y a la izquierda de f(x) = (x+1)²-4.

c) En la función f(x) = (x + 1)²-4 el vértice tiene un desplazamiento horizontal, 1 unidad hacia la izquierda.

d) el vértice de la función f(x) = (x + 1)²-4 está desplazado verticalmente, 4 unidades hacia abajo.

7 0
4 years ago
An estate agent sold a house for £m and receives 10% commission. how much commission did he receive?
aleksklad [387]

Answer:

how many m ???

Step-by-step explanation:

5 0
3 years ago
Lenz father is paying for a $20 meal. He has a 15%-off coupon on his meal. After the discount, a 7% sales tax is applied. How mu
-BARSIC- [3]

Answer:

18.19.

First you have to subtract 15 from 100, giving you 85%. You then multiple 85% to the $20, giving you $17. You then add the 7 to 100, giving you 1.07%, then you multiple that to the $17 and you end up with $18.19.

3 0
4 years ago
Imani spent half of her weekly allowance playing mini-golf. To earn more money, her parents let her wash the car for $4. What is
joja [24]

Answer:

$16

Step-by-step explanation:

This method is probbaly working backwards. I'm not sure.

12 - 4 = 8 (How much she was left with if she didn't wash the car for 4 dollars)

8 x 2 = 16 (They mentioned she spent half of her weekly allowance)

6 0
3 years ago
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