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3 years ago

Need help on geometry

Mathematics

2 answers:

Airida [17]3 years ago

7 0

Answer:

Step-by-step explanation:

1. Vertical

2. Sup

3. Adj angles

4.sup

5. Vertical

6. No relationship

lawyer [7]3 years ago

3 0

1. Vertical
2. Sup
3. Adj angles
4.sup
5. Vertical
6. No relationship

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Help, how would I get my answer for this question?

Maslowich

Answer:

$(-4,32)$

Step-by-step explanation:

Given points are $(-1,-8)$

And given transformation is $D_4$ $r_{x-axis}$

We will start from left to right.

First transformation is reflection about x-axis.

When we reflect about x-axis $(x,y)\ became\ (x,-y)$

So, $(-1,-8)=[-1,-(-8)]=(-1,8)$

Now next transformation is dilation with a factor 4.

If we do dilation with a factor $'k'$ to the point $(x,y)$

New co-ordinates after dilation became $(kx,ky)$

So, $(-1,8)\ became\ (-4,32)$

8 0

3 years ago

Alex

135inches2

Step-by-step explanation:

by multiplying both length and width you can get the sum

8 0

2 years ago

The sum of 18 and a number

Pani-rosa [81]

The sum of 18 and 3 is 21

6 0

3 years ago

Read 2 more answers

plain why the function is discontinuous at the given number a. (Select all that apply.) f(x) = x2 − 2x x2 − 4 if x ≠ 2 1 if x =

ElenaW [278]

Answer with Step-by-step explanation:

We are given that

$f(x)=\left\{\begin{matrix}\dfrac{x^2-2x}{x^2-4}&,if\ \ x\neq 2 \\ 1&,if\ \ x=2\end{matrix}\right.$

We have to explain that why the function is discontinuous at x=2

We know that if function is continuous at x=a then LHL=RHL=f(a).

$f(x)=\frac{x(x-2)}{(x+2)(x-2)}=\frac{x}{x+2}$

LHL=Left hand limit when x <2

Substitute x=2-h

where h is small positive value >0

$\lim_{h\rightarrow 0}f(x)=\lim_{h\rightarrow 0}\frac{2-h}{2-h+2}$

$\lim_{h\rightarrow 0}\frac{2-h}{4-h}=\frac{2}{4}=\frac{1}{2}$

Right hand limit =RHL when x> 2

Substitute

x=2+h

$\lim_{h\rightarrow 0}f(x)=\lim_{h\rightarrow 0}\frac{2+h}{2+h+2}=\lim_{h\rightarrow 0}\frac{2+h}{4+h}$

$=\frac{2}{4}=\frac{1}{2}$

LHL=RHL= $\frac{1}{2}$

f(2)=1

$LHL=RHL\neq f(2)$

Hence, function is discontinuous at x=2

4 0

3 years ago

Sally wants to purchase some snowboarding equipment, clothes, and a season pass. She calculates that it will cost her about $1,8

Sonja [21]

Total Cost : 1800

12 dollars * 16 hours = 192 dollars earned

0.2 percent * 192 = 38.4 dollars saved

A.She earns 192 dollars every week

B. she will save 38.4 dollars * 7 weeks = 268.8  dollars in a week.

C. 7 days times 4.3 weeks = 30.1 days. 30.1 days * 38.4 = 1,155.84 dollars every month.

D. it will take her about 2 months to save the money. To be exact: 1.6 months.

Hope this helped!

8 0

3 years ago