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2 years ago

Plzzz help i will give brainliest if i can

Mathematics

1 answer:

Alla [95]2 years ago

3 0

Answers: choice C and choice E

Plugging x = 3 and y = -1 into both equations of choice C lead to a true result (the same number on both sides). This is why the system of equations listed in choice C is one possible answer. Choice E is a similar story.

If your teacher didn't mean to make this a "select all that apply" type of problem, then it's likely your teacher may have made a typo.

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Claus borrowed $200 to buy a video game system. He paid $10 per month in interest, and it took him 3 months to repay the loan. W

Kay [80]

Answer:

D. 230

Step-by-step explanation:

<h3> 10x3=30<em> then add 200 then that equals 230</em></h3>

7 0

3 years ago

Give two rational numbers whose product equals (-1)

motikmotik

Product is times so try that as it’s the product of a number

6 0

3 years ago

Struck-by injuries are produced by forcible contact or impact between the injured person and ________________.

wariber [46]

C. an object or a piece of equipment :-)

6 0

3 years ago

Read 2 more answers

The data table represents the distance between a well-known lighthouse and a cruise ship over time. The cruise ship is travellin

Trava [24]

Find the velocity first, the "slope".

m=(y2-y1)/(x2-x1)

m=(95.5-53)/(4-2)

m=21.25 ? Your equations are wrong, I'll double check with another set of points...

m=(350.5-308)/(16-14)

m=21.25 LOL, yep none of your lines has the correct slope.

Anyway...

y=21.25x+b, using any point we can solve for the y-intercept, or "b", (2, 53)

53=21.25(2)+b

53=42.5+b

10.5=b so the distance to the lighthouse as a function of time is:

y=21.25x+10.5

So essentially, you should fire your teacher or burn that book you are using :)

6 0

3 years ago

Read 2 more answers

write a linear equation that intersects y=x^2 at two points. Then write a second linear equation that intersects y=x^2 at just o

Liula [17]

We know that $y = x^2$ is a parabola, concave up, with vertex in the origin $(0,0)$

So, we may use three horizontal lines for our purpose: any horizontal line above the x axis will intersect the parabola twice. The x axis itself intersects the parabola once on the vertex, while any horizontal line below the x axis won't intercept the parabola.

Here's the examples:

The horizontal line $y = 4$ intercepts the parabola twice: the system $y = x^2,\ y = 4$ is solved by $x^2=4 \implies x = \pm 2$
The horizontal line $y=0$ intercepts the parabola only once: the system is $y=x^2,\ y=0$ which yields $x^2=0\implies x=0$ which is a repeated solution
The horizontal line $y=-5$ intercepts the parabola only once: the system is $y=x^2,\ y=-5$ which yields $x^2=-5$ which is impossible, because a squared number can't be negative.

5 0

3 years ago