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3 years ago

The pre–image, A, was dilated about the origin. It was then transformed in another way to get A'.

Mathematics

2 answers:

natulia [17]3 years ago

8 0

It was reflection over y-axis

Elenna [48]3 years ago

6 0

Answer:

reflection over the x-axis

Step-by-step explanation:

i hope this helps

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Point Y is on XZ. YZ=5.2 and XZ=12.5. What is XY?

mafiozo [28]

Answer:

wish i could help

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

PLZ help super fast thanks

Nikolay [14]

Answer:

B. $\frac{1}{x^2y^7}$

Step-by-step explanation:

Given:

$(x^3y^{-2}z)(x^{-5}y^{-5}z^{-1})$

Hence Solving the given expression we get;

By Law of Indices which states;

$(a^xb^yc^z)(a^pb^qc^r) = a^{x+p}b^{y+q}c^{z+r}$

Hence we get;

$x^{3+(-5)}y^{(-2)+(-5)}z^{1+(-1)}\\\\x^{3-5}y^{-2-5}z^{1-1}\\\\x^{-2}y^{-7}$

Also We know that

$a^{-6} =\frac{1}{a^6}$

So,

$\frac{1}{x^2y^7}$

8 0

3 years ago

A medical researcher wants to investigate the amount of time it takes for patients' headache pain to be relieved after taking a

Mariana [72]

<span>A medical researcher wants to investigate the amount of time it takes for patients' headache pain to be relieved after taking a new prescription painkiller. She plans to use statistical methods to estimate the mean of the population of relief times. She believes that the population is normally distributed with a standard deviation of 18 minutes. How large a sample should she take to estimate the mean time to within 4 minutes with 97% confidence?
-----
n = [z*s/E]^2
---

n = [2.17*18/4]^2 = 96 when rounded up

</span>

3 0

3 years ago

In ΔEFG, the measure of ∠G=90°, the measure of ∠E=40°, and EF = 75 feet. Find the length of GE to the nearest tenth of a foot

juin [17]

Answer:

19.4 feet

Step-by-step explanation:

Since the triangle has a right angle( as one of the angles in it is equal to 90°), we may find the length of the unknown side using the trigonometric notations SOH CAH TOA where

SOA stands for

Sin Ф = opposite side/hypotenuses side

Cosine Ф = adjacent side/hypotenuses side

Tangent Ф = opposite side/adjacent side

Given that the measure of ∠G=90° and ∠E=40°

EF is the hypotenuse side

FG is the opposite side and

GE is the adjacent side. As such if EF = 75 feet

Cos 75 = GE/75

GE = 75 Cos 75°

= 19.41 feet

≈ 19.4 feet in the nearest tenth of a foot

5 0

3 years ago

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Which line represents a horizontal asymptote of f (x) = StartFraction 5 x squared minus 3 x + 2 Over 10 x squared minus 1 EndFra

Allushta [10]

Answer:

y= 0.5

Step-by-step explanation:

right on edg

4 0

3 years ago