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
leonid [27]
3 years ago
5

Can you help me find equivalent expressions to the expression -4(2x+3)?

Mathematics
2 answers:
Shtirlitz [24]3 years ago
7 0

Answer:

-8x -12

Step-by-step explanation:

multiple -4 with 2x and 3 then add these up

yulyashka [42]3 years ago
3 0

Answer:-8x-12

Step-by-step explanation: multiply -4 by 2x which gives you -4x then multiply -4 by 3 to get -12

You might be interested in
Layers of rock wear off during which of the following processes?
Maru [420]

Answer:

Exfoliation

Step-by-step explanation:

Changes in temperature cause rock to expand (with heat) and contract (with cold). As this happens over and over again, the structure of the rock weakens. Over time, it crumbles.

Rocky desert landscapes are particularly vulnerable to thermal stress. The outer layer of desert rocks undergo repeated stress as the temperature changes from day to night. Eventually, outer layers flake off in thin sheets, a process called exfoliation.

5 0
3 years ago
How many different anagrams can you make for the word MATHEMATICS?
Alex73 [517]

Answer:

4989600

Step-by-step explanation:

The given word is MATHEMATICS

Number of letters in the given word is 11

there are 2 M's, 2 A's and 2 T's

the given word is arranged in 11! ways

three letters are repeating, so we divide by repeating occurrences

number of different arrangements =\frac{11!}{2!2!2!}

= 4989600

7 0
3 years ago
Anyone can help me solve this equation using cross multiplying
Natali5045456 [20]

9514 1404 393

Answer:

  x = 1 or 5

Step-by-step explanation:

The notion of "cross-multiplying" is the idea that the numerator on the left is multiplied by the denominator on the right, and the numerator on the right is multiplied by the denominator on the left. This looks like ...

  \displaystyle \frac{x-1}{7}=\frac{2x-2}{3x-1}\ \longrightarrow\ (x-1)(3x-1)=(7)(2x-2)

Then the solution proceeds by eliminating parentheses, and solving the resulting quadratic equation.

  3x^2-4x+1=14x-14\\\\3x^2-18x+15=0\qquad\text{subtract $14x-14$}\\\\x^2-6x+5=0 \qquad\text{divide by 3}\\\\(x-1)(x-5)=0\qquad\text{factor}\\\\x\in\{1,5\}

_____

<em>Comment on "cross multiply"</em>

Like a lot of instructions in Algebra courses, the idea of "cross multiply" describes <em>what the result looks like</em>. It doesn't adequately describe how you get there. The <em>one and only rule</em> in solving Algebra problems is "<em>whatever is done to one side of the equation must also be done to the other side of the equation</em>." If you multiply one side by one thing and the other side by a different thing, you are violating this rule.

What looks like "cross multiply" is really "<em>multiply by the product of the denominators</em> and cancel like terms from numerator and denominator." Here's what that looks like with the intermediate steps added.

  \displaystyle \frac{x-1}{7}=\frac{2x-2}{3x-1}\\\\\frac{x-1}{7}\times7(3x-1)=\frac{2x-2}{3x-1}\times7(3x-1)\\\\(x-1)(3x-1)=(2x-2)(7)\qquad\textit{looks like}\text{ cross multiply}

8 0
3 years ago
What is 87,200,000 written in scientific notation?
Elan Coil [88]

Answer:

8.72 • 10^7

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
Factor x2 – 256 by difference of squares.
andre [41]

Answer:

Since both terms are perfect squares, factor using the difference of squares formula,

a2−b2=(a+b)(a−b) where a=x and b=16.(+)x16)

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Please help me!! I’d really appreciate it!
    13·1 answer
  • A migrating whale is traveling at an average speed of 5.4 kilometers per hour. How far will the whale travel in 18 hours at this
    11·1 answer
  • If we apply the Pythagorean Theorem to the Egyptian knots we can see that 3^2 + 4^2 = 5^23 2 +4 2 =5 2 . Which of the sets of th
    11·2 answers
  • PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!<br> 8−(−3)=
    13·2 answers
  • URGENT. <br>Q) 18, 19, 20
    7·2 answers
  • Helppppppppppppp 20 points
    15·2 answers
  • Can anyone please tell the answer of the 2 questions!!!! please!!!! ​
    5·2 answers
  • 100 POINT AND BRAINERLEST PROMISE
    9·1 answer
  • Which of the following was NOT used as evidence to support the theory of continental drift? (1 point)
    11·2 answers
  • The sum of three times a number and a second number is five. two times the first number added to the second number is 10. find t
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!