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2 years ago

Which equation has the vertex (-2, 4)

Mathematics

1 answer:

Natasha_Volkova [10]2 years ago

3 0

Answer:

Step-by-step explanation:

None of the given options as the bottom three are linear and the top one has a vertex at (-3, 4)

If one of the other was SUPPOSED to say ±3(x + 2)² + 4, then I'd choose that one.

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How do you write 2sin5cos5 as a single trigonomic ratio?

erastova [34]

Answer:

ertyui

Step-by-step explanation:

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2 years ago

Help please! Will give brainliest

motikmotik

Option c is correct. Use special right triangles and you will findout why. Hint:Use the 45-45-90 special right triangle's properties.

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3 years ago

Read 2 more answers

Use an induction proof to prove this statement:<br> For n≥1, 4^n+5 is divisible by 3.

Tpy6a [65]

Answer:

See below

Step-by-step explanation:

We shall prove that for all $n\in\mathbb{N},3|(4^n+5)$ . This tells us that 3 divides 4^n+5 with a remainder of zero.

If we let $n=1$ , then we have $4^{1}+5=9$ , and evidently, $9|3$ .

Assume that $4^n+5$ is divisible by $3$ for $n=k, k\in\mathbb{N}$ . Then, by this assumption, $3|(4^n+5)\Rightarrow4^k+5=3m,\: m\in\mathbb{Z}$ .

Now, let $n=k+1$ . Then:

$4^{k+1}+5=4^k\cdot4+5\\=4^k(3+1)+5\\=3\cdot4^k+4^k+5\\=3\cdot4^k+3m\\=3(4^k+m)$

Since $3|(4^k+m)$ , we may conclude, by the axiom of induction, that the property holds for all $n\in\mathbb{N}$ .

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2 years ago

What is the quotient?

cupoosta [38]

Answer:

D) 5 7/9

Work Shown:

-52/-9 = 5 7/9 = 5.7777777778

5 0

3 years ago

The formula for the area of a triangle is , where b is the length of the base and h is the height. Find the height of a triangle

Alexandra [31]

The area of a triangle is A= 1/2bh. Plugging in the values you know, 30= 1/2*12*h.

Solving for h,

30= 1/2*12*h

30= 6h

h=5

The height of the triangle is 5 units.

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2 years ago