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shtirl [24]
3 years ago
14

Daredevil Danny was cliff jumping . He jumped off a cliff that was 14.2 meters above the surface . He jumped 2.3 meters below wa

ter .What does -16.5 tell us ?
Mathematics
2 answers:
Novay_Z [31]3 years ago
6 0

Answer:

that he is trying to die

Step-by-step explanation:

i don't know just stating the obvious.

kogti [31]3 years ago
5 0

Answer:

i think it tells us that he jumped 16.5 meters down?

Step-by-step explanation: it’s pretty self explanatory

You might be interested in
Which distribution is used to test the claim that women have a higher mean resting heart rate than men?
xeze [42]

This question is incomplete, the complete question is;

Assume that two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Which distribution is used to test the claim that women have a higher mean resting heart rate than men?

A.t

B.F

C.Normal

D. Chi-square

Answer:

A) t  test

Step-by-step explanation:

A t-test uses sample information to assess how plausible it is for the population means μ1​ and μ2​ to be equal.

The formula for a t-statistic for two population means (with two independent samples), with unknown population variances shows us how to calculate t-test with mean and standard deviation and it depends on the assumption of having an equal variance or not.

If the variances are assumed to be not equal,

he formula is:

t =  (bar X₁ - bar X₂) / √( s₁²/n₁ + s₂²/n₂ )

If the variances are assumed to be equal, the formula is:

t =  (bar X₁ - bar X₂) / √ (((n₁ - 1)s₁² + (n₂ - 1)s₂²) / (n₁ + n₂ - 2)) ( 1/n₁ + 1/n₂)

it called t-test for independent samples because the samples are not related to each other, in a way that the outcomes from one sample are unrelated from the other sample.

hence option A is correct. t test

4 0
3 years ago
Please help me with this question!!!!!!!
DIA [1.3K]

Answer: x=12

Step-by-step explanation:

The Pythagorean theorem is a²+b²=c². A and b are the legs, and c is the hypotenuse. Since we are only given the length of a leg and hypotenuse, we fill in what we have and solve for a.

a²+16²=20²          [exponent]

a²+256=400        [subtract both sides by 256]

a²=144                  [square root both sides]

a=12

Now, we know the missing leg, x=12.

6 0
3 years ago
Pls solve the 6th one
Lubov Fominskaja [6]

Answer:

The smallest square number that is divisible by 2, 3, and 5.

=> That number is A that has form:

A = 2 x 3 x 5 x k (with 2, 3, and 5 are prime numbers, and k is arbitrary positive integer)

Because A is a square number, k should have form of  2 x 3 x 5 x a^2

with a is the smallest positive integer (to make sure A is smallest)

=> select a = 1

=> k = 2 x 3 x 5 x 1^2 = 2 x 3 x 5

=> A = 2 x 3 x 5 x k = 2 x 3 x 5 x 2 x 3 x 5 = 900

Hope this helps!

:)

7 0
3 years ago
The function h(x) = 12x8 + 49 is an even function. Which transformation of h(x) would result in a function that is neither even
Irina-Kira [14]

Answer:  translation 8 units to the right

Step-by-step explanation:

An even function is a function such that:

h(x) = h(-x)

and the function is odd if:

h(-x) = -h(x)

Now, let's talk about transformations:

A) Reflection over the x-axis:

When we have a point (x,y) and we do a reflection over the x-axis, the reflected point will be:

(x, -y).

Then for the case of a function:

y = h(x).

then the reflection will be:

g(x) = - y = -h(x).

And if h(x) is even, -h(x) is also even, so this is not the correct option.

B) Vertical stretch by a factor of 7.

This is written as:

g(x) = 7*h(x).

then:

g(x) = 7*h(x)

g(-x) = 7*h(-x) = 7*h(x) = g(x)

the transformation is even.

C) Translation of 8 units to the right.

We can write this as:

g(x) = h(x - 8).

Then:

g(-x) = h(-x -8) = h(x + 8)

Then g(-x) is not equal to g(x)

and also g(-x) ≠ -g(x)

So in this case the transformation is neither odd or even.

C)  horizontal compression by a factor of One-half.

This transformation is written as:

g(x) = h( (1/2)*x)

And, similar as the case of the vertical compression, in this case the transformation is also even.

3 0
3 years ago
Solve this equation by completing the square <br>a²-2a-8=0
igomit [66]
<span>a² -2a -8 = 0
Move the non-x term to the right
</span>a² -2a  = <span>8
Divide equation by coefficient of a^2 (not necessary).
Take the coefficient of x (which is -2)
divide it by 2
square it
add it to both sides of the equation
-2 / 2 = -1
-1 ^2 = 1

</span>
a² -2a  +1= <span>8 +1

(a -1) * (a-1) = 9

</span>Take the square root of both sides

(a-1) = 3
a = 4

Remember that square root of 9 ALSO = -3
(a-1) = -3
a = -2


4 0
3 years ago
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