3 years ago

Explain to a new student how a reflection across the y-axis changes the coordinates of the original point.

Mathematics

1 answer:

RSB [31]3 years ago

6 0

If you were to have (3,2) and find the reflection of the y axis, it would turn y into a negative, making it (3,-2).

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(-2-3 radical2) (5-4i radical2)

gavmur [86]

* means multiply, sqrt=radical
expand
-10+sqrt2*8i-sqrt2*15+24i
group
(-10-sqrt2*15)+(sqrt2*8+24)i
not exactly sure though

3 0

3 years ago

Hey what's the answer <img src="https://tex.z-dn.net/?f=%20-%2011a%283a%20%2B%202a%29" id="TexFormula1" title=" - 11a(3a + 2a

allsm [11]

Answer:

$- 11a(3a + 2b) \\ = - 11 \times 3 \times a \times a + ( - 11 \times 2 \times a \times a) \\ = - 33 {a}^{2} - 22ab$

I hope it helps

have a great day

$#Liliflim✌️$

7 0

3 years ago

Read 2 more answers

Given: ΔABC; b= 10; c = 14, and ∠A = 54°. Find the length of side a to the nearest whole number.

algol13

We can solve for the length of side a to the nearest whole number using the Laws of Cosines such as the formula is shown below:
a²=b²+c²-2bcCosA
Solving for the value of a, we have:
a²=10²+14²-2(10)(14)cos54°
a²=131.42
a=11.46
The answer is 11.46 or 11.5.

8 0

3 years ago

I hope someone can help me here please don't answer nonsense!

pshichka [43]

1) By the inscribed angle theorem, $m\angle B=\frac{1}[2}(60^\circ})=\boxed{30^{\circ}}$