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2 years ago

Which composition of transformations will create a pair of similar, nol congruent triangles?

Mathematics

2 answers:

Andrej [43]2 years ago

3 0

Answer:

Rotation then dilation.

Step-by-step explanation:

Dilation changes the size. So the result is a similar not congruent triangle. The other transformations move the figure around on the plane.

Ymorist [56]2 years ago

3 0

The answer is D, hope this helps!

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Its basically just percents y=85(1.25)=

frosja888 [35]

Answer:

106.25

Step-by-step explanation:

y = 85(1.25) = 106.25

I'm not sure how to show the work, i just put it into a calculator

6 0

2 years ago

A student repeatedly measures the mass of an object using a mechanical balance and gets the following values: 560 g, 562 g, 556

MrRissso [65]

Answer: 2.76 g

Step-by-step explanation:

The formula to find the standard deviation:-

$\sigma=\sqrt{\dfrac{\sum(x_i-\overline{x})^2}{n}}$

The given data values : 560 g, 562 g, 556 g, 558 g, 560 g, 556 g, 559 g, 561 g, 565 g, 563 g.

Then, $\overline{x}=\dfrac{\sum_{i=1}^{10} x_i}{n}\\\\\Rightarrow\ \overline{x}=\dfrac{560+562+556+558+560+556+559+561+565+563}{10}\\\\\Rightarrow\ \overline{x}=\dfrac{5600}{10}=560$

Now, $\sum_{i=1}^{10}(x_i-\overline{x})^2=0^2+2^2+(-4)^2+(-2)^2+0^2+(-4)^2+(-1)^2+1^2+5^2+3^2\\\\\Rightarrow\ \sum_{i=1}^{10}(x_i-\overline{x})^2=76$

Then, $\sigma=\sqrt{\dfrac{76}{10}}=\sqrt{7.6}=2.76$

Hence, the standard deviation of his measurements = 2.76 g

6 0

3 years ago

Plz help me am being timed right now

artcher [175]

Answer:

11.8 meter below

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

to advertise o radio,the radio station charges 32naira for the first 10 words and 2naira per word for every additional word.how

o-na [289]

Answer:

Cost for 68 words = 148 naira

Step-by-step explanation:

Given that:

Cost of first ten words = 32 naira

Cost of additional words = 2 naira per word

Let,

x be the number of additional words.

y be the total cost

y = 2x + 32

We have to find the cost for 68 words.

The cost of first 10 words will be 32 naira.

Additional words = 68 - 10 = 58 words

Putting x = 58 in the equation

y = 2(58) + 32

y = 116 + 32

y = 148

Hence,

Cost for 68 words = 148 naira

6 0

2 years ago

Find the slope of the given line, if it is defined. 2x + 1 = 0

svlad2 [7]

Given :

A line 2x + 1 =0 .

To Find :

The slope of the given line .

Solution :

We know , slope of line is given by the tangent of the angle between the x-axis and the line .

Now, for line 2x + 1 =0 i.e $x=\dfrac{-1}{2}$ .

The line is perpendicular to x-axis and cuts the x-axis at $\dfrac{-1}{2}$ .

Therefore , the angle between the line and x-axis is $90^o$ .

So , slope $m=\tan\ 90^o$ i.e undefined .

Therefore , the slope of given line is not defined .

Hence , this is the required solution .

5 0

3 years ago