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3 years ago

Looking at the diagrams, answer the question

Mathematics

1 answer:

Ludmilka [50]3 years ago

7 0

Hey!!!

Answers:

1. {d}

2. {a,d,g,f}

3.{g,e,f}

please see attached picture for full solution

Hope it helps

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Find x A. 4√6 B. 4√6/3 C. 16√6/3 D. 32√3/3

Cerrena [4.2K]

Answer:

Step-by-step explanation:

let hypotenuse of triangle with 60°=y

$\frac{8\sqrt{2}}{y} =sin ~60\\8 \sqrt{2}=y \times \frac{\sqrt{3}}{2} \\y=\frac{16 \sqrt{2}}{\sqrt{3}} =\frac{16 \sqrt{6}}{3}$

4 0

3 years ago

Rewrite the quadratic function in vertex form. Y=2x^2+4x-1

Fantom [35]

Answer:

$\large\boxed{y=2(x+1)^2-3}$

Step-by-step explanation:

The vertex form of an equation of a parabola:

$y=a(x-h)^2+k$

(h, k) - vertex

We have

$y=2x^2+4x-1=2\left(x^2+2x-\dfrac{1}{2}\right)$

We must use the formula: $(a+b)^2=a^2+2ab+b^2\qquad(*)$

$2\left(x^2+2(x)(1)-\dfrac{1}{2}\right)=2\bigg(\underbrace{x^2+2(x)(1)+1^2}_{(*)}-1^2-\dfrac{1}{2}\bigg)\\\\=2\left((x+1)^2-1-\dfrac{1}{2}\right)=2\left((x+1)^2-\dfrac{3}{2}\right)$

Use the distributive formula a(b + c) = ab + ac

$2(x+1)^2+2\left(-\dfrac{3}{2}\right)=2(x+1)^2-3$

5 0

3 years ago

Only the circled ones

ozzi

2.

M must be (0,0) since it coincides with the origin
R must be (a+b, √(a²-b²)).
The x-coordinate is b from A translated to the right by a.
The y-coordinate is the same as A.

(I think the square root is there to confuse you).

3.

R(0,0)
C(a,b) (same x as T, same Y as E)

5.

Not sure how to prove that.

5 0

3 years ago

Multiply:4x^3sqrt4x^2(2^3sqrt32x^2-x^3sqrt2x)

larisa [96]

8x^5\left(32\sqrt{2}x^2-\sqrt{2}x^4\right)

7 0

3 years ago

Read 2 more answers

Which postulate proves that the triangles below are similar?

Molodets [167]

Answer:

AA~

Step-by-step explanation:

These triangles are similar but not congruent. One triangle is bigger than the other, meaning none of the side lengths are the same. On the triangles, two angles are given, a 53 degree and a 90 meaning that you would us the AA rule to determine if they are similar. Which they are.

3 0

3 years ago