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2 years ago

Haven't had luck with this question in the past and I need help.

Mathematics

1 answer:

ElenaW [278]2 years ago

3 0

Answer:

Step-by-step explanation:

First find the area of a full circle with radius 2

A = pi r^2

A = pi 2^2

A = 4 pi

We know that this is 1/4 of a circle so take 1/4 of the area

1/4 A = 1/4 (4 pi) = pi

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Which of the following formulas could be used to find the area, A, of a triangle with base b and height h?

kykrilka [37]

I hope this helps you

A=Area

b=base

h=height

A=b×h/2

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5 0

3 years ago

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Trihao is driving from cambridge to london Assume the distance between cambridge and london is 100 km Given that trihao drives a

Paraphin [41]

average speed equals distance over time 100/80 will give you 5/4

8 0

1 year ago

Help please, I attached the question. Is it a!?

AVprozaik [17]

Answer:

Step-by-step explanation:

Recall that for a quadratic equation of the form:

$0=ax^2+bx+c$

The number of solutions it has can be determined using its discriminant:

$\Delta = b^2-4ac$

Where:

If the discriminant is positive, we have two real solutions.
If the discriminant is negative, we have no real solutions.
And if the discriminant is zero, we have exactly one solution.

We have the equation:

$2x^2+5x-k=0$

Thus, a = 2, b = 5, and c = -k.

In order for the equation to have exactly one distinct solution, the discriminant must equal zero. Hence:

$b^2-4ac=0$

Substitute:

$(5)^2-4(2)(-k)=0$

Solve for k. Simplify:

$25+8k=0$

Solve:

$\displaystyle k = -\frac{25}{8}$

Thus, our answer is indeed A.

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2 years ago

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brilliants [131]

Answer:

Step-by-step explanation:

subtract 1 from 13 divide the number by 4

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3 years ago

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Answer:

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Honestly, I can go on and on

I could explain every natural phenomenon

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Oh, that was me I was messing around

I killed a snake, I buried its guts

Sprouted a tree, now you've got coconuts

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Hey, it's your day to say

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'Cause I'm gonna need that boat

I'm sailing away, away

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Step-by-step explanation:

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