Does a negative plus a negative always equal a positive?

Answers

Answer 1
Answer: A negative plus a negative never equals a positive. It only equals a positive if you’re multiplying a negative times a negative .
Answer 2
Answer: No. A negative (x) a negative equals a positive.

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the ratio of dan's height to his fathers height is 5 to 6 and his father is 68 tall. How tall is Dan?

Answers

Dan is 56 (?) tall

Because 68 divided by 6 is 11.3333 and 11.3333 times 5 is 57 rounded

A large cylinder with height of 3 ft and a diameter of 2 ft is filled with water. Angelica
uses a large cylindrical cup with a height of 1
__

2 ft
and a diameter of 1
__

4 ft to scoop water from the
container.
(a)
What is the exact volume of the large
cylinder?
(b)
What is the exact volume of the cup?
(c)
How many full cups of water can Angelica
get from the container

Answers

Given:
large cylinder: height = 3 ft ; diameter = 2 ft
cylinrical cup: height = 1/2 ft ; diameter = 1/4 ft

Volume of a cylinder = π r² h

large cylinder volume = 3.14 * (1ft)² * 3ft = 3.14 * 1ft² * 3ft = 9.42 ft³

cylindrical cup volume = 3.14 * (0.125ft)² * 1/2 ft = 3.14 * 0.015625ft² * 0.5ft =  0.0245 ft³

9.42 ft³ ÷ 0.0245ft³ = 384.489 cups

What is 5256 divided by 52

Answers

The answer is 101r4

101r4
52/5256
52
-----
5
0
---
56
52
-----
4

the answer is 101.0769236761231
but just write 101 because i think the others are no need to write and
if you want to divide use your calculator 

Write the equation in function form.then graph the equation

x-3y=-9 ???

Answers

x-3y=-9 \n \n-3y=-x -9 \ \ / :(-3) \n \ny=(1)/(3)x + 3


Marco wrote the equation below. Cos ( -π /2) = cos ( 3π / 2)

Which statement best describes Marcos equation?

Answers

Answer:

It is true, because the cosine function has a period of 2π


Step-by-step explanation:

Since, the period of the cos function is 360° ( or 2π radians ), it holds the property of:

Cos(\theta)=Cos(2\pi +\theta)


Taking \theta as -(\pi)/(2), (2\pi + \theta) is equal to  2\pi + (-(\pi)/(2))\n=2\pi - (\pi)/(2)\n=(4\pi-\pi)/(2)\n=(3\pi)/(2)

The equation is true!

Note: The cos function is even function


Hence, the equation is true, because the cosine function has a period of 2π, NOT because the cosine function is ODD, which it is not!!

Can somebody help me please

Answers

Answer:

linear and increasing

Step-by-step explanation: