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3 years ago

13

NEED ANSWER ASAP MARKING BRAINLIEST

1 answer:

kakasveta [241]3 years ago

6 0

Answer:

AB = 8π

Step-by-step explanation:

The length of the arc is calculated as

arc = circumference of circle × fraction of circle

= 2πr × $\frac{144}{360}$

= 2π × 10 × $\frac{2}{5}$ ← cancel the 5 and 10, leaving

AB = 2π × 2 × 2 = 8π

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cybil flips a coin and rolls a fair number cube at the same time. What is the probability that she will toss tails and roll a nu

IRISSAK [1]

Answer:

$\frac{1}{6}$

Step-by-step explanation:

Flipping a coin and rolling a number cube are both independent events. Independent events do not rely on the outcome of any previous events. This means that whatever you flip on the coin will have no effect on whatever you roll on the number cube and each flip of the coin or roll of the cube has the same probability as the flip or roll before.

The probability of getting tails on a coin toss is: $\frac{1}{2}$

The probability of getting a number less than 3 (so 1 or 2) on a number cube is: $\frac{1}{3}$

Since we are combining these events, we need to multiply the fractions together to get our overall probability:

$\frac{1}{2}$ * $\frac{1}{3}$ = $\frac{1}{6}$

8 0

3 years ago

Properties of the normal distribution include?

V125BC [204]

Answer:

Properties of a normal distribution

The mean, mode and median are all equal.

The curve is symmetric at the center (i.e. around the mean, μ).

Exactly half of the values are to the left of center and exactly half the values are to the right.

The total area under the curve is 1.

Step-by-step explanation:

6 0

3 years ago

9. the learning modalityyou prefer this new normal a.modular learning b.online learning c.digital learning

Gwar [14]

Answer: A module learning

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

What is the distance between the points (-1 , -13) and (-1 , 21) in the coordinate plane?

chubhunter [2.5K]

Answer:

$\displaystyle d = 34$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Algebra I</u>

Coordinates

<u>Algebra II</u>

Distance Formula: $\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

<u>Step 1: Define</u>

Point (-1, -13)

Point (-1, 21)

<u>Step 2: Find distance </u><em><u>d</u></em>

Substitute in points [DF]: $\displaystyle d = \sqrt{(-1+1)^2+(21+13)^2}$
(Parenthesis) Add: $\displaystyle d = \sqrt{(0)^2+(34)^2}$
[√Radical] Simplify: $\displaystyle d = \sqrt{(34)^2}$
[√Radical] Evaluate: $\displaystyle d = 34$

6 0

3 years ago

Someone help me please !!!! Will mark Brianliest !!!!!!!!!!!!!!!!

alexdok [17]

Answer:

See below

Step-by-step explanation:

Let the amount charged is y and number of hours is x.

Then the equations are as below.

<u>Attorney A:</u>

y = 150x + 250

<u>Attorney B:</u>

y = 175x + 150

<u>If the amounts are equal, then:</u>

150x + 250 = 175x + 150
175x - 150x = 250 - 150
25x = 100
x = 4 hours

3 0

2 years ago