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4 years ago

Question about using similar and congruent triangles

Mathematics

2 answers:

vlada-n [284]4 years ago

5 0

We know that DO and OX have equal side lengths. Since DX's length is 13, we divide 13 by 2 to get 6.5 as our answer for length OX. We also know that DO's length is also 6.5 because when we add 6.5 by 6.5, we get 13 as our total length of DX.

6.5 rounded to is 7.

So, length OX is 7 when rounded and that would be your answer.

aliya0001 [1]4 years ago

5 0

Answer:

the answer is 7.09

Step-by-step explanation:

You might be interested in

A refrigerator is shaped like a rectangular prism. The length is 27 inches, the width is 24 inches, and the height is 38 inches.

spin [16.1K]

SA = 2(wl+hl+hw)

Plug in what we know:

SA = 2((24)(27)+(38)(27)+(38)(24))

Multiply:

SA = 2(648 + 1026 + 912)

Add:

SA = 2(2586)

Multiply:

SA = 5172

7 0

4 years ago

Read 2 more answers

A roll of paper towels is wound around a hollow cardboard tube. the

blsea [12.9K]

The radius of the cardboard tube of 85th loop of paper is 4.92cm

The arithmetic sequence is the sequence where every term is increased or decreased by a fixed number from the previous number.

Here the outer radius of the tube is 2.4 cm

the thickness of the paper is 0.3mm= 0.03cm

i.e. in every loop the increase in the radius of the loop is 0.03cm

then the radius in every sequence will be 2.40, 2.43, 2.46, 2.49, 2.52, .....

so here it is clear that it is an arithmetic sequence with a common difference of 0.03.

nth term of the sequence, aₙ = a₁ + (n - 1)d where a₁ is the first term, n is the index of the loop, and d is a common difference.

here a₁ =2.40

d=0.03

n=85

the radius of tube of the 85th loop will be= r= 2.40+(85-1)0.03= 2.40+ 2.52= 4.92

Therefore The radius of the cardboard tube of the 85th loop of paper is 4.92cm

Learn more about the arithmetic sequence

here: brainly.com/question/6561461

#SPJ10

6 0

2 years ago

What can you conclude ?? Need answer soon

jenyasd209 [6]

It is B
You can conclude that M and L are parallel.
I hope this helped

4 0

3 years ago

Which value of x makes the following equation true?

Vlad [161]

3(x-3) = -3x + 39
3x - 9 = -3x + 39
3x + 3x = 39 + 9
6x = 48
x = 48/6
x = 8

In short, Your Answer would be Option C) 8

Hope this helps!

8 0

3 years ago

Two trains move between two towns. It takes the first train 2 hr 48 min and it takes the second 4 hr 40 min. The rate of the fir

Umnica [9.8K]

Answer:

182 miles.

Step-by-step explanation:

Given:

Two trains move between two towns.

Time taken by first train = 2 hr 48 minutes =

Change minute into hour:

60 minute = 1 hour

1 minute = $\frac{1}{60}$

48 minutes = $\frac{1}{60}\times48=\frac{48}{60} =0.8\ hour$

Time taken by first train in hour = $2+0.8=2.8\ hours$

Time taken by second train = 4 hr 40 minutes

Similarly, 40 minutes = $\frac{40}{60} =0.67\ hour$

Time taken by second train in hour = $4+0.67=4.67\ hours$

The rate of the first train is 26 mph more than that of the second train.

Question asked:

What is the distance between these towns ?

Solution:

Let speed of second train = $x\ miles\ per\ hour$

As the speed of the first train is 26 mph more than that of the second train.

Speed of first train = $26+x\ miles\ per\ hour$

As two trains move between two towns means distance traveled by both train is same.

By using : $Distance=speed\times time$

Distance traveled by first train = Distance traveled by second train

$speed\times time$ =

$(26+x)2.8=x\times4.67$

$26\times2.8+x\times2.8=4.67x\\72.8+2.8x=4.67x\\$

Subtracting both sides by $2.8x$

$72.8=1.87x$

Dividing both sides by 1.87

$x=38.93$

Speed of second train = 38.93 miles per hour

$Distance=speed\times time$

= 38.93 $\times$ 4.67

= 181.80 miles.

Thus, the distance between these towns is 182 miles (nearest whole number).

3 0

4 years ago