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ira [324]
3 years ago
6

Is the following relation a function? *

Mathematics
1 answer:
spayn [35]3 years ago
8 0

Answer:

No.

Step-by-step explanation:

Well at first glance it might seem so but there are two points particularly that can tell you that these points cannot be within a function.

The points (3,2) and (3,-2) will yield an undefined slope (a straight vertical line). There is no possibility that the other points can be in this line (as their y - values are different) and there is no possibilty that this is a function at all according to the vertical line test (the test is that if you draw a vertical line that there shouldn't be more than one point on it).

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<span>Answer: c Explanation:- Given:- Actual height of tower is 1450. Model height of tower is 24. To find the ratio of height we divide it (24/1450) hence the answer is c 12:725</span>
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PLEASE HELP!! 99 POINTS!! I HAVE NOOOO IDEA!
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This is x^3+x^2+1=-x in math terms, where x is the number. So x^3+x^2+x+1=0. We can write this: x^2(x+1)+(x+1)=(x^2+1)(x+1)=0. The only real solution is x+1=0, so x=-1.
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Write an equation through the points (-3,7) and (1,-1)​
Aliun [14]

The slope is -2.

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3 years ago
Consider the following hypothesis test: : : A sample of provided a sample mean and a sample standard deviation . Enter negative
SSSSS [86.1K]

Answer:

-1.540

Step-by-step explanation:

H0 : μ = 18

H0 : μ ≠ 18

The sample size, n = 48

Sample mean, xbar = 17

Sample standard deviation, s = 4.5

α = 0.05

The test statistic :

(xbar - μ) ÷ (s/√(n))

(17 - 18) ÷ (4.5 / √48))

-1 ÷ 0.6495190

= -1.5396

= -1.540 (3 decimal places ).

5 0
3 years ago
Please help. I need an explanation with the answer in the pictures is the question.
WITCHER [35]

Answer:

4, 1, 6, 2, 3, 5

Step-by-step explanation:

When you have so many to do, it is convenient to let a calculator or spreadsheet do the math for you. The attached calculated the sums. Then the magnitudes needed to be calculated from those.

The numbers listed in the answer section are the order in which the resultant vectors appear in the ascending order list. That is, (u+2v-w)/6 appears first in the list.

_____

Each resultant is found by adding the given vectors with the given coefficients. For example, consider the first one on the list:

... -1/2u +5v = (-1/2)(9, -2) + 5(-1, 7)

... = (-9/2 -5, +1 +35) = (-19/2, 36)

Then the magnitude of it is found by adding the components according to the Pythagorean theorem. For the resultant just computed, the magnitude is ...

... √((-19/2)² +36²) = √(90.25 +1296) = √1386.25 ≈ 37.23

_____

In the attached, matrix multiplication is used to compute all 6 resultants at once. The 6 resultant vectors are the answer to that multiplication. The magnitudes are computed from these results as above.

I get the magnitudes of the resultants (to 2 decimal places) to be ...

37.23, 3.89, 42.04, 28.50, 32.04, 41.10

5 0
3 years ago
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