3 years ago

PLEASE HELP ME ASAP!!!!!!!!!!!

Mathematics

1 answer:

ehidna [41]3 years ago

6 0

Look at the picture below!

You might be interested in

David saved $175 each month for the first five months and then saved $225 each month for the next five months.

hichkok12 [17]

Answer: 200
Equation: 175 × 5 + 225 × 5 ÷ 10 = 200
Explanation: to find the average, you add up all the numbers, then divide by how many numbers there are.

7 0

3 years ago

Read 2 more answers

Answer and get 22 pts be named brainliest and get a thank you.

bazaltina [42]

Option c 71 3/4

Step-by-step explanation:

Step 1 :

The area of a rectangle is length * breadth

Step 2 :

Given length = 15 3/8 = 123/8 (converting mixed fractions into improper fractions)

Breadth = 4 2/3 = 14/3

Step 3 :

Hence the area of the rectangle = length * breadth

= 123/8 * 14/3 = 1722/24 = 71 3/4 (converting improper fractions into mixed fractions)

4 0

3 years ago

Nnnklnhjvgfcvhbnmjhgtfrtcv bnmkljhuygnjmhkuygvb

DerKrebs [107]

Answer:

Zscubyersirhgrhuesvkh

Step-by-step explanation:

I’m glad we speak the same language

7 0

3 years ago

xP(x)00.2510.0520.1530.55Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal pl

Nookie1986 [14]

The Solution:

Given:

Required:

Find the standard deviation of the probability distribution.

Step 1:

Find the expected value of the probability distribution.

$E(x)=\mu=\sum_{i\mathop{=}0}^3x_iP_(x_i)$ $\begin{gathered} \mu=(0\times0.25)+(1\times0.05)+(2\times0.15)+(3\times0.55) \\ \\ \mu=0+0.05+0.30+1.65=2.0 \end{gathered}$

Step 2:

Find the standard deviation.

$Standard\text{ Deviation}=\sqrt{\sum_{i\mathop{=}0}^3(x_i-\mu)^2P_(x_i)}$ $=(0-2)^2(0.25)+(1-2)^2(0.05)+(2-2)^2(0.15)+(3-2)^2(0.55)$ $=4(0.25)+1(0.05)+0(0.15)+1(0.55)$ $=1+0.05+0+0.55=1.60$

Thus, the standard deviation is 1.60

Answer:

1.60

8 0

2 years ago

This is a GCSE maths question which i don’t understand.

Tpy6a [65]

Answer:

Step-by-step explanation:

7 0

4 years ago