3 years ago

How to evaluate -4+3/4 plzzzz!

Mathematics

1 answer:

Pachacha [2.7K]3 years ago

7 0

Answer:

-13/4

Step-by-step explanation:

Look for the LCM of both which is 4. 4÷1 ×-4 which is -16

then 4 divided by 4 which is 1 then × 3 which is 3.

now (-16+3)/4 to have -13/4

You might be interested in

Cos(x+y)/cosxcosy+tanxtany=1

adelina 88 [10]

Answer:

See explanation

Step-by-step explanation:

Use formula

$\cos (x+y)=\cos x\cos y-\sin x\sin y$

Substitute it into the first fraction:

$\dfrac{\cos (x+y)}{\cos x\cos y}\\ \\=\dfrac{\cos x\cos y-\sin x\sin y}{\cos x\cos y}\\ \\=\dfrac{\cos x\cos y}{\cos x\cos y}-\dfrac{\sin x\sin y}{\cos x\cos y}\\ \\=1-\dfrac{\sin x}{\cos x}\cdot \dfrac{\sin y}{\cos y}\\ \\=1-\tan x\tany$

Consider the whole expression:

$\dfrac{\cos (x+y)}{\cos x\cos y}+\tan x\tan y\\ \\=1-\tan x \tan y+\tan x\tan y\\ \\=1$

Done!

6 0

3 years ago

Liliana bought a helmet for $19.67. How much change should Liliana receive if she pays the cashier with a twenty dollar bill?

BartSMP [9]

Answer:

20 - 19.67 = .33

Step-by-step explanation:

33 cents

8 0

3 years ago

Read 2 more answers

-4(-3x-2)=32 please hurry

kramer

It’s 2 my work is in the picture

4 0

3 years ago

PLEASE HELP!!!! I don't understand!

cricket20 [7]

I think the answer is D

7 0

4 years ago

Explain how you decide which part of a problem will be represented by the variable x, and which part will be represented by the

Stolb23 [73]

You have to analyze the problem, to find out what is the dependent variable, which is y. Also, what unit is the independent variable which is x.

6 0

3 years ago

Read 2 more answers