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3 years ago

Are these numbers 7, 0, -3, 0.5, -3/4 rational or irrational?

Mathematics

1 answer:

Diano4ka-milaya [45]3 years ago

7 0

Answer: rational

Step-by-step explanation: 7 has an answer example 7+1 is 8 irrational are the ones that dont get an answer like root numbers

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Please help I dont understand

Arisa [49]

Answer:

38 degrees

Step-by-step explanation:

By the Law of Cosines,

5² = 3² + 7² - 2(3)(7) cos A

5² - 3² - 7² = -2(3)(7) cos A

-33 = -42 cos A

cos A = 33/42

A = arccos(33/42), which is about 38 degrees.

5 0

2 years ago

I need help with this problem! Thank you!

QveST [7]

Answer:

The amount of water in the reservoir at the beginning of second week

$w_{2} = 299.8800$

Step-by-step explanation:

Step(i):-

Given equation

w₀ = 300 and

$w_{n} = (0.9993) w _{n-1} + 0.15$

Put n =1

$w_{1} = (0.9993) w _{1-1} + 0.15$

$w_{1} = (0.9993) w _{0} + 0.15$

$w_{1} = (0.9993) X 300 + 0.15$

$w_{1} = 299.94$

Step(ii):-

Put n =2

$w_{2} = (0.9993) w _{2-1} + 0.15$

$w_{2} = (0.9993) w _{1} + 0.15$

$w_{2} = (0.9993) X (299.94) + 0.15$

$w_{2} = 299.8800$

Conclusion:-

The amount of water in the reservoir at the beginning of second week

$w_{2} = 299.8800$

3 0

3 years ago

Kenny bought a new car stereo that cost $220, but he had a coupon for a 14% discount. How much did Kenny pay for the car stereo.

jok3333 [9.3K]

Answer:

189,2$

Step-by-step explanation:

220*0,86=189,2

14% = 14/100 = 0,14

1-0,14 = 0,86

price* factor between 0 and 1, 0 -> item is free, 1 -> full price

7 0

2 years ago

Read 2 more answers

The equation of the line of best fit of a scatter plot is

Verizon [17]

Answer:

-6

Step-by-step explanation:

y intercept is -6 because formula of gradient is y=mx+c.......c is the y intercept

5 0

3 years ago

A pizza has a radius of 10 inches. A slice is removed. The length of the crust of the missing slice is 3 inches. What is the are

Aleksandr-060686 [28]

The area of the missing slice is 15 inches ²

<h3>How to determine the area</h3>

From the information given, we can see that the pizza takes the form of a circle;

Area of the missing slice takes the shape of a triangle

Area of a triangle = 1/ 2 base × height

base = 10 inches

height = 3 inches

Area of missing slice = 1/ 2 × 10 × 3

Area = 1/ 2 × 30

Area = 15 inches ²

Thus, the area of the missing slice is 15 inches ²

Learn more about triangles here:

brainly.com/question/1475130

#SPJ1

8 0

1 year ago