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3 years ago

Find the distance between A and B?

Mathematics

1 answer:

ser-zykov [4K]3 years ago

7 0

What’s the numbers or do you have a picture?

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What is the percent of decrease from 2,000 to 60?

Alborosie

Answer:

The answer is 97% decrease

6 0

3 years ago

The sum of five times a number and seven is 107. Find the number.

Crazy boy [7]

5x + 7 = 107
5x = 100
X = 20
The number is 20

7 0

3 years ago

Read 2 more answers

In △ABC, m∠A=15°, a=9, and b=10. Find c to the nearest tenth.

nadya68 [22]

In △ABC, m∠A=15°, a=9, and b=10

We apply sine law

$\frac{ sin(a)}{b} = \frac{sin(b)}{b} = \frac{sin(c)}{c}$

$\frac{ sin(a)}{b} = \frac{sin(b)}{b}$

$\frac{ sin(15)}{9} = \frac{sin(b)}{10}$

$\frac{sin 15}{9} * 10 = sin(b)$

0.287576716 = sin(b)

b= 16.7129 degree

angle A= 15 degree, angle B = 16.71 degree

So angle C = 148.29

$\frac{ sin(a)}{b} = \frac{sin(c)}{c}$

$\frac{ sin(15)}{9} = \frac{sin(148.29)}{c}$

c= $\frac{sin(148.29)}{sin(15)} *9$

c= 18.28

5 0

4 years ago

Question Progress

sergejj [24]

Answer:

Step-by-step explanation:

The ratio of boys is 4/11

You need a number that is divisible by 11.

11 represents the number of students in the class. That was obtained by adding 4 and 7 together. So there are 4/11 boys and 7/11 girls.

You could try 33 which is between 24 and 40

4/11 * 33 = 12

There are twelve boys in the class.

7/11 * 33 = 21

There are 21 girls in the class.

21 + 12 = 33 which is exactly what you need.

5 0

3 years ago

sample of 45 bottles of soft drink showed a variance of 1.1 in their contents. The process engineer wants to determine whether o

frosja888 [35]

Answer:

The correct solution is "23.58 and 71.89".

Step-by-step explanation:

Given:

Sample,

n = 45

df = 45 - 1

= 44

then,

⇒ $X_R^2 = X_{\frac{\alpha}{2},df }^2$

$=71.89$

or,

⇒ $X_L^2 = X_{1-\frac{\alpha}{2}, df }^2$

$=23.58$

7 0

3 years ago