1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Paul [167]
3 years ago
9

Given that the two triangles are similar, solve for x if AU = 20x + 108, UB = 273, BC = 703, UV = 444, AV = 372 and AC = 589.

Mathematics
1 answer:
Damm [24]3 years ago
8 0
The answer:
<span>the two triangles are similar
in addition, the line UV is parallel to line BC, so we can use the theorem of Thales for proving the following ratios:

AV /AC = AU/ AB= UV/ BC
372/589=20x +80  / AB = 444 / 703

</span>so we get    (372/589) AB - 80 =  20x, and x = ( (372/589) AB - 80  ) / 20

exact value of x depends on the value of AB
You might be interested in
Simplify 4.2^-3 x 5.1^2 x 4.2^4 x 5.1^3
Stolb23 [73]

Answer:

14491.060542

Step-by-step explanation:

5 0
3 years ago
Find the slope for numbers 1-6
Helga [31]

Answer:

#1 is 2

#2 is -2/3

#3 is -2/5

#4 is -1/2

#5 is 4

#6 is 1

Step-by-step explanation:

I hope this helps

4 0
3 years ago
A research group needs to determine a 90% confidence interval for the mean repair cost for all car insurance small claims. From
lutik1710 [3]

Answer:

a) z = 1.645

b) The should sample at least 293 small claims.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.9}{2} = 0.05

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.05 = 0.95, so z = 1.645, which means that the answer of question a is z = 1.645.

Now, find  the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

(b) If the group wants their estimate to have a maximum error of $12, how many small claims should they sample?

They should sample at least n small claims, in which n is found when

M = 12, \sigma = 124.88. So

M = z*\frac{\sigma}{\sqrt{n}}

12 = 1.645*\frac{124.88}{\sqrt{n}}

12\sqrt{n} = 205.43

\sqrt{n} = \frac{205.43}{12}

\sqrt{n} = 17.12

\sqrt{n}^{2} = (17.12)^{2}

n = 293

The should sample at least 293 small claims.

8 0
2 years ago
Can you guys help me please :(
ale4655 [162]

Answer:

720 m²

Step-by-step explanation:

Area = base × height

= 12 × 6

= 72 mm²

≈ 720 m² (1 mm = 10 m)

5 0
1 year ago
Find the geometric mean of 32 and 2
Dmitry [639]
The geometric mean of 32 and 2 is 8
7 0
2 years ago
Other questions:
  • 50 sevens minus 3 seven
    5·1 answer
  • Which rule describes the composition of transformations that maps pre-image ABCD to final image A"B"C"D"? Reflection across the
    11·1 answer
  • Kwamee created a coffee blend for his cafe by mixing Kona beans and Fuji beans.Kona beans cost $11 per pound and Fuji beans cost
    14·1 answer
  • Help needed please extra points given
    10·1 answer
  • Evaluate -4^2-7(-4)+2
    10·1 answer
  • Whats 20 inches and 7 feet as a fraction in simpalist form
    10·1 answer
  • Can someone help me with this math qt
    12·1 answer
  • Help please please please
    11·2 answers
  • Simplify the complex fraction
    8·2 answers
  • 3x-9=2(x-14)<br> show me the steps to do this
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!