1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alexandra [31]
3 years ago
10

Help please really need it fast :)

Mathematics
1 answer:
Serga [27]3 years ago
5 0

Answer:

.4 x .9

Step-by-step explanation:

You might be interested in
WHAT IS THE REFERENCE ANGLE FOR 357 DEGREES
andre [41]
The reference of the angle would be 45 degrees
5 0
3 years ago
Which of the following are identities?
podryga [215]

Answer:

A. III only

Step-by-step explanation:

In mathematics, an identity is one of the characteristics of algebraic expressions.

Given variable a and b in an algebraic expression, an identity is defined as an equality that remains the same no matter the values that we choose for either variable a or b.

Identity in mathematics makes it very easy to solve algebraic expressions. The two sides of an identity in an algebra can easily be exchanged for each other.

In the above question, we are given 3 Options.

I) 3(5 + 2x) = 15 + 6x

II) y = x + 3

III) (x² - y²) = (x + y) (x - y)

Option I) 3(5 + 2x) = 15 + 6x

Is showing distributive property in mathematics.

Distributive property is :

a(b + c) = ab + ac

Option I is not an identity , therefore it is wrong.

Option II) y = x + 3 is just an algebraic expression.

Only Option III is an identity. This is because it follows the rule of

(a² - b²) = (a + b) (a - b)

We can prove and confirm this be solving the algebraic expression

(x + y) (x - y)

We expand the bracket

x² - xy +xy - y²

x² - y²

Therefore, option A is the correct option.

6 0
3 years ago
Read 2 more answers
У
Vilka [71]

Answer:

y=4

Step-by-step explanation:

7 0
3 years ago
You are traveling in a car. Your speed is 15 miles per hour. What is your speed in feet per minute?
Nookie1986 [14]

Answer:

1,320 Feet per min

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
What is 3b plus 12 divided by 2 what is b ?
masha68 [24]

the answer is 3(b+2)

6 0
3 years ago
Other questions:
  • What is the gcf of 16 24 and 40?
    15·2 answers
  • Solve the inequality.<br><br> x − 10 &lt; 6 − 5x thanks. i dont feel like doing this
    11·2 answers
  • For ten school days the numbers of bikes parked at a school bike rack are 10,12,8,11,13,9,2,1,9, and 12​
    5·1 answer
  • 3/2 x 3 x 1/5 please help me
    12·1 answer
  • How do you write an equation for a circle whose diameter has endpoints (5,0) and (-5,0)?
    11·1 answer
  • Jessica's shoebox is 20 centimeters long and 10 centimeters wide. How many more millimeters is the length of the shoebox than th
    8·1 answer
  • Simplify <br> 12 (6) - 7 (2) + (6-3)
    14·2 answers
  • A 1-pound box of candy cost $4.00. What was the cost<br> per ounce (1 pound 16 ounces)?
    6·1 answer
  • Can you simplify 4+6(3)+2(5 1/2 -1)
    15·1 answer
  • Help find the inverse of each of the given functions
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!