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kumpel [21]
3 years ago
5

How many minutes will it take a runner to finish an 11-km race at 18 km/h?

Mathematics
1 answer:
klio [65]3 years ago
4 0
The avg is about 3min
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Find a parametrization, using cos(t) and sin(t), of the following curve: The intersection of the plane y= 5 with the sphere
Elenna [48]

Answer:

The  parametrization,  of the given curve is  x = 10 cos(t) \ \ ,z = 10 sin(t)

Step-by-step explanation:

From the question we are given the function

        x^2 + y^2 + z^2 = 125

At  y= 5

       x^2 + 5^2 +z^2 =125

       x^2 + z^2 = 100

       x^2 + z^2 =  10^2

Converting the above  to it polar equation we have  

       x = 10 cos(t) \ \ ,z = 10 sin(t)

     

 

6 0
3 years ago
Solve the system of linear equations by elimination.<br><br> 9x−2y=349x−2y=34<br> 5x+2y=−6
stealth61 [152]
So combine all the x and the Y on the left side and the coefficients on the right and then multiply the variable (x or Y) by the number needed for both. and then whichever variable you have left (x or y) will equal the coefficient and then divide by the coefficient
4 0
3 years ago
A company dyes two sizes of rugs. A small rug requires 4 hours for dyeing and a medium-size rug requires 6 hours for dyeing. The
Nadusha1986 [10]

I just finished this test and the correct answer is "4x + 6y < 120" or "B"

8 0
3 years ago
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The price of an athletic sweatshirt that normally cost $55 goes on sale for 25% off. What is the new selling price of the sweats
Nata [24]

Answer:

Original price: $ 55

Discount percentage:  25 %

 

Discount:  $13.75

Final Price:  $41.25

7 0
2 years ago
The transitive property holds true for similar figures.<br><br> Always<br> Sometimes<br> Never
liubo4ka [24]

Answer: Always.


Step-by-step explanation:

The transitive property holds true for similar figures always because similar figures have similar shapes, the same angles and dimensions are proportional.

For example:- If figure 1 is similar to figure 2 then both have same shape and same angles and dimensions are proportional .

If figure 2 is similar to figure 3 then both have same shape and same angles and dimensions are proportional .

⇒ figure 1 is similar to figure 3 the both have same shape and same angles and dimensions are proportional as the figure 2 .

Thus the transitive property holds true for similar figures always.

5 0
3 years ago
Read 2 more answers
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