Ask question

Ask question

All categories

3 years ago

5

on a map, each centimeter represents 45 kilometers. two towns are 135 kilometers apart. what is the distance between the towns o

n the map

1 answer:

Anastasy [175]3 years ago

8 0

1 cm = 45 km
x cm = 135 km

135/45 = 3 cm

distance between the towns on the map is 3 cm.

i hope this helps :)

You might be interested in

Margaret grew apples on a portion of her garden last year. She intends to reduce the length of each side of the portion of her g

ollegr [7]

Redued by 15%

orignal=100%
decrease by 15%=100%-15%=85%

find 85% of original
orignal=15 feet

85% of 15=0.85 times 15=12.75 feet

answer is B

7 0

2 years ago

8^15÷8^−3 im lost i dont get this whole simply thing at all

Phantasy [73]

8^15 ÷ 1/8^3 = 8^15 x 8^3=8^18

8 0

3 years ago

Read 2 more answers

If the cubic function P(x) includes the points (−1, 0), (−2, 0), (3, 0), and (0, −12) which of the following represents this fun

zhannawk [14.2K]

I think the answer would be <span>2(x + 1)(x + 2)(x - 3).
Hope this helped! :) </span>

3 0

3 years ago

A past survey of students taking a standardized test revealed that % of the students were planning on studying engineering in c

Angelina_Jolie [31]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The 95% confidence interval is $-0.00870$

Step-by-step explanation:

From the question we are told that

The first sample size is $n_1 = 1068000$

The first proportion $\r p_1 = 0.084$

The second sample size is $n_2 = 1476000$

The second proportion is $\r p_2 = 0.092$

Given that the confidence level is 95% then the level of significance is mathematically represented as

$\alpha = (100 - 95)\%$

$\alpha = 0.05$

From the normal distribution table we obtain the critical value of $\frac{ \alpha }{2}$ the value is

$Z_{\frac{\alpha }{2} } =z_c= 1.96$

Now using the formula from the question to construct the 95% confidence interval we have

$(\r p_1 - \r p_2 )- z_c \sqrt{ \frac{\r p_1 \r q_1 }{n_1} + \frac{\r p_2 \r q_2 }{n_2} }$

Here $\r q_1 = 1 - \r p_1$

=> $\r q_1 = 1 - 0.084$

=> $\r q = 0.916$

and

$\r q_2 = 1 - \r p_2$

=> $\r q_2 = 1 - 0.092$

=> $\r q_2 = 0.908$

So

$(0.084 - 0.092 )- (1.96)* \sqrt{ \frac{0.092* 0.916 }{1068000} + \frac{0.084* 0.908 }{1476000} }$

$-0.00870$

3 0

3 years ago

What does +7×(-15)= what does it equal

neonofarm [45]

-105 hope this helps again lol

4 0

2 years ago

Read 2 more answers