All categories

2 years ago

Use the Distributive Property to evaluate the expression.

Mathematics

2 answers:

beks73 [17]2 years ago

8 0

Hello there! :)

The Distributive property states:

a(b+c)=ab+ac

So, we know what a is. It's 5.

b=3

c=0.4

5(3+0.4)

5*3+5*0.4

15+0.2

15.2

Hope it helps!

$GraceRosalia$

adelina 88 [10]2 years ago

8 0

D. 15.4 hope this helps

You might be interested in

What number represents the same amount as 2 hundreds ++plus 14 tens ++plus 3 ones?

Dennis_Churaev [7]

343 is the answer because 14 tens is 1 hundred and 4 tens

4 0

3 years ago

What is the sum of two numbers a and b decreased by their product?

natka813 [3]

Answer:

(a+b) - (ab)

Step-by-step explanation:

sum of two numbers a and b decreased by their product

(a+b) - (ab)

8 0

3 years ago

Read 2 more answers

Combine like terms and solve equations<br> 5x+18-8x=33

Igoryamba

First thing you have to do is take the 5 + -8 which equals -3 then you have to 33-18 which equals 15 then u have to divide by the -3 which gives you equal your answer of -5

6 0

3 years ago

Read 2 more answers

A school has a goal of getting at least 2000 boxtops.They have 8 days left to get it. At least how many do they need to collect

vova2212 [387]

They need to get at least 250 boxtops each day to meet or exceed the goal. Hope this helps!

5 0

2 years ago

Read 2 more answers

Prove that if sin (2 + y) = 3 sin (x - y), then tan x = 2 tany.

nignag [31]

Answer:

The proof is given below.

Step-by-step explanation:

Given: ( the correct question and ans is as follow )

sin (x + y) = 3sin ( x - y)

To Prove

tan x = 2 tan y

Proof:

$\sin (x+y) = 3\sin (x-y)$

Using the identities

$\sin (A+B) = \sin A.\cos B + \cos A.\sin B\\and\\\sin (A-B) = \sin A.\cos B - \cos A.\sin B\\$

we get

$\sin x.\cos y + \cos x.\sin y = 3(\sin x.\cos y - \cos x.\sin y)\\\sin x.\cos y + \cos x.\sin y = 3\sin x.\cos y - 3\cos x.\sin y$

Now we will take sin x . cos y to the left hand side and cos x . sin y to the right hand side,we get

$3\sin x.\cos y - \sin x.\cos y = 3\cos x.\sin y +\cos x.\sin y\\2\sin x.\cos y =4\cos x.\sin y\\\sin x.\cos y =2\cos x.\sin y \ \textrm{4 divide by 2}\\ \frac{\sin x}{\cos x} =2\times \frac{\sin y}{\cos y} \\\textrm{we know identity }\\\frac{\sin x}{\cos x} = \tan x\\\frac{\sin y}{\cos y} = \tan y\\\therefore \tan x = 2\tan y\ ...............{PROVED}$

7 0

3 years ago