Subtract -3-+5 A .8 B.-8 C.2 D.-2 E.None of the above

Consider the original triangle and the enlargement, 2 cm 8 cm 3 cm

LenKa [72]

Answer:

12 cm

Step-by-step explanation:

2x4=8

3x4=12

Thats why

4 0

3 years ago

A stick 7 inches long is broken into two pieces, so that one piece is twice as long as the other one. How long are the two piece

marshall27 [118]

Hello from MrBillDoesMath!

Answer:

7/3 and 14/3 inches

Discussion:

Let P1 = "Piece 1" and "P2 = Piece 2", Then P2 = 2 * P1 and

P1 + P2 = 7 => as P2 = 2 P1

P1 + 2P1 = 7 =>

3P1 = 7 => divide both sides by 7

P1 = 7/3

Then P2 = 2 P1 - 2* (7/3) = 14/3

Thank you,

MrB

7 0

3 years ago

Read 2 more answers

A yearbook company was investigating whether there is a significant difference between two states in the percents of high school

Keith_Richards [23]

Answer: D. two-sample z-test for a difference in population proportions

Step-by-step explanation:

The options for the given questions were missing. The options are as follows:

A one-sample z-test for a sample proportion

B one-sample z-test for a population proportion

A

C two-sample z-test for a difference in sample proportions

D two-sample z-test for a difference in population proportions

Solution:

Sample proportions are used to estimate population proportions.

We are given the sample proportion of students from one state who ordered a yearbook = 70/150

We are also given the sample proportion of students from the other state who ordered a yearbook = 65/100

Since there are 2 samples and we want to investigate if there is a difference between 2 population of students,

Therefore, the most appropriate method for analyzing the results is

D. two-sample z-test for a difference in population proportions

8 0

3 years ago

Answer the question and ill mark you brainliest!

Kitty [74]

The answer would be yes

7 0

2 years ago

What is the conditional relative frequency of selling an item marked 50% off, provided the item sold is item 2?

sukhopar [10]

Answer:

Conditional relative frequency = 0.67

Step-by-step explanation:

50% off Buy 1, get 1 free Total

Item 1 12 8 20

Item 2 20 10 30

Total 32 18 50

Condition relative frequency table:

50% off Buy 1, get 1 free Total

Item 1 $\frac{12}{20}=0.6$ $\frac{8}{20}=0.4$ $\frac{20}{20}=1$

Item 2 $\frac{20}{30}=0.67$ $\frac{10}{30}=0.33$ $\frac{30}{30}=1$

Total $\frac{32}{50}=0.64$ $\frac{18}{50}=0.36$ $\frac{50}{50}=1$

Therefore, conditional relative frequency of selling an item marked 50% off, provided the item sold is item 2 = 0.67

8 0

3 years ago