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Soloha48 [4]
3 years ago
5

To evaluate the integrity of underground water lines, the department of public works randomly selects 20 sites in the city to un

earth and observe the water lines. At 5 of the sites, the water lines needed repair. The department of public works concludes that about one-fourth of underground water lines throughout the city need repair.
3. To award prizes at a hockey game, four tickets with individual seat
numbers printed on them are picked from a barrel. Since Elvis's
section was not selected for any of the four prizes, he assumes that
they forgot to include the entire section in the drawing.
Mathematics
2 answers:
ollegr [7]3 years ago
6 0
4. Normal body temperature is 98.6 degrees Fahrenheit, although it varies slightly for some people. Someone ?
Zanzabum3 years ago
6 0
98.6, I think, tell me how you do!
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Triangle A″B″C″ is formed by a reflection over x = −1 and dilation by a scale factor of 4 from the origin. Which equation shows
juin [17]

Answer:

\frac{AB}{A''B''}  = \frac{1}{4}

Step-by-step explanation:

Given the information:

  • A'B'C' reflection over x = −1
  • dilation by a scale factor of 4 from the origin

<=> the two triangles are similar to each other, triangles are similar if they have the same shape, but can be different sizes, so  A″B″C″ is 4 time bigger than ABC

=> the relationship between ΔABC and ΔA″B″C″

= \frac{AB}{A''B''}  = \frac{1}{4}

We choose C.

Hope it will find you well.

7 0
3 years ago
If the sales tax is 7% on all purchases, how much should you set aside for $300. Show your work.
trasher [3.6K]

Answer:

$21

Step-by-step explanation:

7% = .07

$300 multiplied by .07 = $21

3 0
3 years ago
Select the set or sets that the number below belongs to. Be sure to account for ALL sets. (Rational, Integer, Whole, Natural). T
arsen [322]

Answer:

rational interger whole and natural.

Step-by-step explanation:

It's all of them

5 0
3 years ago
Read 2 more answers
Solve the equation for x.<br> 2<br> 3<br> x −1<br> 9<br> x + 5 = 20
LiRa [457]

AnsweSolve the equation for x. 2 3 x −1 9 x + 5 = 20

Step-by-step explanation:

5 0
3 years ago
There are 20 balls in a bag. Ten of the balls are red, 4 are green, and the rest are yellow. Which ratio represents the number o
anastassius [24]

Answer:

6:10 is the ratio

Step-by-step explanation:

hope this helps

8 0
3 years ago
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