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3 years ago

PLEASE HELP I WILL GIVE BRAINLIEST!

Mathematics

2 answers:

rusak2 [61]3 years ago

8 0

Answer:

A) regular

Step-by-step explanation:

All sides are equal, length 3 units each

Elena-2011 [213]3 years ago

5 0

Answer:

Option B, none of these

Step-by-step explanation:

The graph makes a Square

Answer: Option B, none of these

Graph Below:

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After completing 60 laps in a race, the runner has completed 24% of the race. How many laps does the race have?

steposvetlana [31]

250 laps total. I used cross multiplication to solve it

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3 years ago

Ou bought 12 baseball cards on Monday and 24 baseball cards on Tuesday. After giving some baseball cards to your brother, you ha

anastassius [24]

You bought 12 cards on Monday and 24 on Tuesday. If you add these together, you will have <em>36 baseball cards in total. </em>

You decided to give some cards (x) to your brother. You now have 13 baseball cards left.

36 - (x) = 13.

36 - 13 = (x).

Therefore, (x) must equal 23 cards given to your brother.

I hope this helps!

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4 years ago

a farmer planted 4 acres of soybeans for every 9 acres of corn. he planted a total of 400 acres. how many total acres of soybean

Tomtit [17]

Lets have 4x acres of soybeans , then it is going to be 9x acres of corn
(4x/9x=4/9)
Altogether we have (4x+9x) acres
Altogether he planted 400 acres
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4x+9x=400
13x=400
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4x acres of soybeans
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3 0

3 years ago

I need help with this

lorasvet [3.4K]

I think the last one is right hope this helps

7 0

3 years ago

Could someone help me rnnn?

GuDViN [60]

Answer:

vertex = (0, -4)

equation of the parabola: $y=3x^2-4$

Step-by-step explanation:

Given:

y-intercept of parabola: -4
parabola passes through points: (-2, 8) and (1, -1)

Vertex form of a parabola: $y=a(x-h)^2+k$

(where (h, k) is the vertex and $a$ is some constant)

Substitute point (0, -4) into the equation:

$\begin{aligned}\textsf{At}\:(0,-4) \implies a(0-h)^2+k &=-4\\ah^2+k &=-4\end{aligned}$

Substitute point (-2, 8) and $ah^2+k=-4$ into the equation:

$\begin{aligned}\textsf{At}\:(-2,8) \implies a(-2-h)^2+k &=8\\a(4+4h+h^2)+k &=8\\4a+4ah+ah^2+k &=8\\\implies 4a+4ah-4&=8\\4a(1+h)&=12\\a(1+h)&=3\end{aligned}$