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3 years ago

Which triangle results from a reflection across the line x = 1?

Mathematics

2 answers:

iris [78.8K]3 years ago

6 0

Answer:

Step-by-step explanation:

Mice21 [21]3 years ago

3 0

The answer is A you have to flip the triangle towards you

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Sonia earned $2,100 at her uncle's orchard. If she worked for 70 weeks and earned the same amount of money each week, how much d

Drupady [299]

Answer:

Step-by-step explanation:

She earned 30$ a week(Brainlyest?)

7 0

3 years ago

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The coordinates of the endpoint of QS are Q(-9,8) and S(9,-4). Point R is on cue as such that QR:RS Is in the ratio 1:2. What ar

marishachu [46]

R(–3, 4)

Step-by-step explanation:

Let Q(-9,8) and S(9,-4) be the given points and let R(x, y) divides QS in the ratio 1:2.

By section formula,

$R(x, y)=R\left(\frac{m x_{2}+n x_{1}}{m+n}, \frac{m y_{2}+n y_{1}}{m+n}\right)$

Here, $x_{1}=-9, y_{1}=8, \text { and } x_{2}=9, y_{2}=-4 \text { and } m=1, n=2$

Substituting this in the section formula

$R(x, y)=R\left(\frac{1(9)+2(-9)}{1+2}, \frac{1(-4)+2(8)}{1+2}\right)$

To simplifying the expression, we get

$\Rightarrow R(x, y)=R\left(\frac{9-18}{3}, \frac{-4+16}{3}\right)$

$\Rightarrow R(x, y)=R\left(\frac{-9}{3}, \frac{12}{3}\right)$

⇒ R(x,y) = R(–3,4)

Hence, the coordinates of point R is (–3, 4).

6 0

3 years ago

Kali trains for a race by running around a track each lap around the track is 400 meters she runs 4 kilometers each day how many

ASHA 777 [7]

I am not very sure but it might be 30 laps.

5 0

3 years ago

A’B’C’ is a dilation image if ABC which is the correct description of the dilation

Sav [38]

Answer:

The dilation is an enlargement

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its corresponding sides is equal and this ratio is called the scale factor

In this problem Triangles A'B'C' and ABC are similar by AA Similarity Postulate

Let

z------> the scale factor

$z=\frac{A'C'}{AC}$

substitute the values

$z=\frac{2+8}{2}$

$z=\frac{10}{2}=5$

The scale factor is greater than 1

therefore

The dilation is an enlargement

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3 years ago

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Which number is largest?<br> A. 0.78<br> B. 3/10<br> C. 0.50<br> D. 82/100

Olegator [25]

C. 0.50.

I believe that is the answer. Hope this helped! Sorry if I’m wrong.

-Bella :)

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3 years ago

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