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2 years ago

HELP PLZZZZZZ 40 POINTS IF RIGHT

Mathematics

1 answer:

lyudmila [28]2 years ago

8 0

Answer:

probability

Step-by-step explanation:

is the chance or likelihood that an event will happen.

It is the ratio of the number of ways an event can occur to the number of possible outcomes. We'll use the following model to help calculate the probability of simple events.

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What is the verbal expression of 23f

ira [324]

When a number and letter are together, it means multiplication.

So, it is read as "23 times f".

7 0

3 years ago

Calculati lungimea cercului cu raza de 0,(4)cm

natali 33 [55]

0, (4) = 4/9 L circle = 2πR L circle = 2 · π · 4/9 L circle = 8π / 9 cm
L = 2 * pi * R
L = 2 * pi * 0. (4) cm = 0. (8) pi cm

5 0

3 years ago

What is the axis of symmetry of the

S_A_V [24]

Answer:

Step-by-step explanation:

i think so..sorry if im wrong

8 0

2 years ago

Read 2 more answers

Resistors are labeled 100 Ω. In fact, the actual resistances are uniformly distributed on the interval (95, 103). Find the mean

Zinaida [17]

Answer:

$E[R]$ = 99 Ω

$\sigma_R$ = 2.3094 Ω

P(98<R<102) = 0.5696

Step-by-step explanation:

The mean resistance is the average of edge values of interval.

Hence,

The mean resistance, $E[R] = \frac{a+b}{2} = \frac{95+103}{2} = \frac{198}{2}$ = 99 Ω

To find the standard deviation of resistance, we need to find variance first.

$V(R) = \frac{(b-a)^2}{12} =\frac{(103-95)^2}{12} = 5.333$

Hence,

The standard deviation of resistance, $\sigma_R = \sqrt{V(R)} = \sqrt5.333$ = 2.3094 Ω

To calculate the probability that resistance is between 98 Ω and 102 Ω, we need to find Normal Distributions.

$z_1 = \frac{102-99}{2.3094} = 1.299$

$z_2 = \frac{98-99}{2.3094} = -0.433$

From the Z-table, P(98<R<102) = 0.9032 - 0.3336 = 0.5696

5 0

3 years ago

The ratio of pencils to pens in the drawer is 8:14. If there are actually twice as many pencils as in the ratio, how many pencil

dusya [7]

Yo sup??

let the number of pencils and pens be 8x and 14x

x=2

therefore the number of pens and pencils are

16 pencils and 28 pens

Hope this helps

6 0

3 years ago