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diamong [38]
4 years ago
14

What are different ways to add two rational numbers and get a negative

Mathematics
1 answer:
makkiz [27]4 years ago
5 0
If the sum is negative or if the signs are different and the negative has a biger absoulute value.
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The Carousel at Carowinds has 4 rings of horses. Fred is riding on the inner ring, which has a radius of 7 feet. Juan is riding
nikdorinn [45]

Answer:

Juan travel 31.4 feet farther than Fred in one rotation.

Step-by-step explanation:

In this problem we need to determine the change in linear position of Fred and Juan, whose formula is:

s=\theta \cdot r (Eq. 1)

Where:

r - Radius, measured in feet.

\theta - Angular arch, measured in radians.

s - Change in linear position, measured in feet.

If both makes one rotation in the carousel, we obtain the change in linear position of each player:

Fred (r = 7\,ft, \theta = 2\pi)

s= 2\pi\cdot (7\,ft)

s = (3.14)\cdot (7\,ft)

s = 21.98\,ft

Juan (r = 17\,ft, \theta = 2\pi)

s= 2\pi\cdot (17\,ft)

s = (3.14)\cdot (17\,ft)

s = 53.38\,ft

And the difference between both travelled distances is:

\Delta s = 53.38\,ft-21.98\,ft

\Delta s = 31.4\,ft

Juan travel 31.4 feet farther than Fred in one rotation.

4 0
3 years ago
216^-1.5t+15=1<br> please solve and give the correct answers<br> will give brainlest
LekaFEV [45]
If +15 is also a a part of the power of 216 there will be no solution:
216^(-1.5t)=1-15
216^(-1.5t)=-14
-1.5t= 216 base log -14 as log with negative value(-14 in this problem) has no solution so,
I guess it is 216^(-1.5t+15)=1 right?

216^-1.5t+15=1
-1.5t+15=216 base log 1
-1.5t+15=0(Any log with value 1 of anybase has no value which is peopwely 0)
-1.5t=-15
t=15/1.5
t=10
3 0
4 years ago
I need help withy these questions.
Alekssandra [29.7K]
The little square means 90° and a straight line means 180° so 180 minus 68° minus 90° is 22° which leaves,
1) 112° and since you can flip 68° exacly the same on both sides it is a vertical angle which means
3)68.
4) 90°
8 0
4 years ago
one of the comers of a cube is sliced off the resulting cross section will have a minimum of ? Sides ?
Molodets [167]

a corner of a cube connects 3 sides to each other,

 then add the side of the cut

 so it would have 4 sides

8 0
3 years ago
What is the approximate width of a 90 percent confidence interval for the true population proportion if there are 12 successes i
BaLLatris [955]
\hat{p}=\frac{12}{25}=0.48
An approximate 90% confidence interval for the true population proportion p is given by:
\hat{p}\pm 1.645 \sqrt{\frac{0.48(1-0.48)}{25}} =\hat{p}\pm0.164
The correct choice of answer is the second one (b).
8 0
3 years ago
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