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Valentin [98]
4 years ago
8

Since the normal curve is not symmetrical the area corresponding to a z-score of +1.0 will be different from that corresponding

to -1.0. True or False
Mathematics
2 answers:
Kazeer [188]4 years ago
7 0
True or false i think true
Whitepunk [10]4 years ago
5 0

Answer:

True

Step-by-step explanation:

When we represent a distribution we can analyze its level of symmetry: a distribution is symmetric if in relation to a central value the distribution is distributed 50% to the right and another 50% to the left, presenting a similar shape on both sides of the central value .

If, on the other hand, the distribution presents a more lean form to the left, we speak of positive asymmetry; and if it is more to the right, of negative asymmetry. In these cases, the asymmetry causes the z-score values of +1.0 to have a different value than the one corresponding to -1.0, since the precise figure of a bell is not obtained.

In conclusion, the statement is true.

Hope this helps!

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PLSSS HELP HERES IMAGEEE
adelina 88 [10]
3 is correct answer!!
7 0
3 years ago
Read 2 more answers
The new club sticker is in the shape of a triangle. It has a height of 8 inches and a base of 10 inches. The area of the club st
MariettaO [177]

Answer:

Height (h)=8 in

Base(b)=10in

Area (A) of a triangle = 1/2*b*h

A=8in*10in=80in sqr

Step-by-step explanation:

The sticker is in triangular form so one has to Area of triangle formula: 1/2x base x height

5 0
3 years ago
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Anika [276]

Answer:a,c,d

Step-by-step explanation:

8 0
3 years ago
Given 16 = −5 + z4solve for z
AysviL [449]
Hi,

16 = - 5 + z4 \\ - 4z + 16 = - 5 \\ - 4z = - 5 - 16 \\ - 4z = -21

Now just divide both sides of equation by -4.

z = \frac{21}{4}

Simplify:

z = 5 \frac{1}{4} \: \: \: \: \: \: \: \: \: \: \: \: \: fraction \: result

Decimal form:

z = 5.25 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: decimal \: result

Hope this helps.
r3t40
8 0
3 years ago
Read 2 more answers
Find the value of k for which the line y = kx + 6 is a tangent to the curve x^2 + y^2 – 10x + 8y = 84
guajiro [1.7K]

Answer:

k = 1/2

Step-by-step explanation:

input y = kx +6 into the equation of the curve x² + y² – 10x + 8y = 84

x² + (kx + 6)² - 10x + 8(kx + 6) = 84

expand:

x² + k²x² + 12kx + 36 - 10x + 8kx + 48 = 84

simplify by collecting like terms:

x² + k²x² + 20kx - 10x + 84 = 84

subtract 84 on both sides to bring it to the left:

x² + k²x² + 20kx - 10x + 84 - 84 = 0

x² + k²x² + 20kx - 10x = 0

factorise out x:

x²(1 + k²) + x(20k - 10) = 0

using the discriminant b² - 4ac where b is 20k - 10, a is 1 + k² and c is 0, substitute them in the formula b² - 4ac:

b² - 4ac

(20k - 10)² - 4(1 + k²)(0) = 0

the part highlighted in bold is gone because it's all multiplied by 0, so we are left with (20k - 10)² = 0

(20k - 10)² is the same as

(20k - 10)(20k - 10)

equate both to 0

20k - 10 = 0 and 20k - 10 = 0

add 10 on both sides

20k = 10 and 20k = 10

divide 20 on both sides

k = 10/20 and k = 10/20 which are both the same

10/20 is simplified to 1/2

k = 1/2

5 0
2 years ago
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