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maks197457 [2]
3 years ago
11

(This photo didnt even get up yet!)

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
7 0

Answer:

15 ways

Step-by-step explanation:

\frac{6!}{4!(6-4)!}=\frac{6!}{4!2!}=15

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Whats 3 2/3 as im proper fraction
Flura [38]
11/3. This is because you multiply the denominator by the mixed number. Than you add the numerator to that. Put that number over the denominator you had in the original problem. Hope this helps!
6 0
3 years ago
Read 2 more answers
IQ test scores are standardized to produce a normal distribution with a mean of = 100 and a standard deviation of = 15. Find the
mixas84 [53]

Answer:

0.01

Step-by-step explanation:

Using the z score formula

z = (x-μ)/σ,

where x is the raw score = 135

μ is the population mean = 100

σ is the population standard deviation = 15

z = 135 - 100/15

z = 2.33333

P-value from Z-Table:

P(x<135) = 0.99018

P(x>135) = 1 - P(x<135)

P(x > 135) = 1 - 0.99018

= 0.0098153

Approximately to 2 decimal places

= 0.01

Therefore, the proportion of the population for the following IQ score of 135 is 0.01

4 0
3 years ago
An equation of a parabola with its vertex at (-3,2) and focus at (-3,-1) written in general equation form
german
<span> we have that
standard form of equation for parabola:
 (x-h)^2=-4p(y-k)
(h,k) --------->being the (x,y) coordinates of the vertex.
Parabola opens downwards because focus is below vertex on the axis of symmetry.
For given problem:
</span><span>vertex: (-3,2)
axis of symmetry: x=-3
p=distance from vertex to focus on the axis of symmetry=2-(-1)=3
4p=12
Directrix: y=2+p=5
Equation:
(x+3)^2=-12(y-2)

the answer is </span>(x+3)^2=-12(y-2)
5 0
3 years ago
Find the degree measures of the next two positive and the previous two negative angles that are coterminal with the angle 75°.
AlladinOne [14]

9514 1404 393

Answer:

  • 435°, 795°
  • -285°, -645°

Step-by-step explanation:

Add or subtract multiples of 360° to find coterminal angles.

<u>Positive</u>

  75° +360° = 435°

  75° +2×360° = 795°

<u>Negative</u>

  75° -360° = -285°

  75° -2×360° = -645°

5 0
3 years ago
A population with a mean of 7 has a sum of 42. how many scores are in the population
SVEN [57.7K]
Mean = sum/N
7 = 42/N
N = 42/7 . . . . . multiply by N/7
N = 6

There are 6 scores in the population
4 0
3 years ago
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