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
Len [333]
3 years ago
14

Which expression is equivalent to 42 + 30?

Mathematics
1 answer:
Zanzabum3 years ago
8 0
42+30= 72
6 (36+24)=120 not equal
7 (6+30)=252 not equal
6 (7+5)=72 equal
5 (37+35)= 360 not equal
You might be interested in
(ab^2 x -b^4a^3)^2<br><br> What is the answers
Umnica [9.8K]

Answer:

\left(ab^2x-b^4a^3\right)^2:\quad a^2b^4x^2-2a^4b^6x+a^6b^8

Step-by-step explanation:

Given the expression

\left(ab^2\:x\:-b^4a^3\right)^2

solving the expression

\left(ab^2\:x\:-b^4a^3\right)^2

\mathrm{Apply\:Perfect\:Square\:Formula}:\quad \left(a-b\right)^2=a^2-2ab+b^2

a=ab^2x,\:\:b=b^4a^3

so the expression becomes

=\left(ab^2x\right)^2-2ab^2xb^4a^3+\left(b^4a^3\right)^2

=a^2b^4x^2-2a^4b^6x+a^6b^8

Thus,

\left(ab^2x-b^4a^3\right)^2:\quad a^2b^4x^2-2a^4b^6x+a^6b^8

3 0
2 years ago
How many tires are there if you have 10 bicycles?
mash [69]
20 bicycles. two tires per one bike. 2*10=20
3 0
3 years ago
Read 2 more answers
3x + 2 ≤ 14 <br><br>-5 + 2x &gt; 15 * <br><br>-2x + 4 ≥ 18 <br><br>HaLp i don't gets
sweet-ann [11.9K]

9514 1404 393

Answer:

  1. x ≤ 4
  2. x > 10
  3. x ≤ -7

Step-by-step explanation:

We're guessing you want to solve for x in each case. You do this in basically the same way you would solve an equation.

1. 3x +2 ≤ 14

  3x ≤ 12 . . . . . subtract 2

  x ≤ 4 . . . . . . . divide by 3

__

2. -5 +2x > 15

  2x > 20 . . . . . . add 5

  x > 10 . . . . . . . . divide by 2

__

3. -2x +4 ≥ 18

  4 ≥ 18 +2x . . . . . add 2x

  -14 ≥ 2x . . . . . . . subtract 18

  -7 ≥ x . . . . . . . . . divide by 2

_____

<em>Additional comment</em>

The statement above that the same methods for solving apply to both equations and inequalities has an exception. The exception is that some operations reverse the order of numbers, so make the inequality symbol reverse. The usual operations we're concerned with are <em>multiplication and division by a negative number</em>: -2 < -1; 2 > 1, for example. There are other such operations, but they tend to be used more rarely for inequalities.

You will note that we avoided division by -2 in the solution of the third inequality by adding 2x to both sides, effectively giving the variable term a positive coefficient. You will notice that also changes its relation to the inequality symbol, just as if we had left the term where it was and reversed the symbol: -2x ≥ 14 ⇔ -14 ≥ 2x ⇔ x ≤ -7 ⇔ -7 ≥ x

5 0
3 years ago
Read 2 more answers
Please solve 9 if it’s upside down please rotate it
topjm [15]

Answer:

≈ 1/2 teaspoon

4 2/5 * .11 = .484 teaspoon

Hope this helps :)

<em>ilovejiminssi♡</em>

7 0
2 years ago
HELPPP!!!!! PLEASEEE
Tpy6a [65]

Answer:

c

Step-by-step explanation:

4x = 20

--------------

4

x = 5

*20 divided by 4 equals 5*

3 0
3 years ago
Other questions:
  • A sample of 1700 computer chips revealed that 51% of the chips do not fail in the first 1000 hours of their use. The company's p
    7·2 answers
  • A circle is cut from a square piece of cloth, as shown:
    8·1 answer
  • Find g(f(x)) when f(x) = 3x2 + x - 8, and g(x) = 4x + 5.
    9·1 answer
  • What's 1.5 :- 56<br><img src="https://tex.z-dn.net/?f=%20%5Cdiv%2052" id="TexFormula1" title=" \div 52" alt=" \div 52" align="ab
    12·2 answers
  • A commuter train travels 45 miles in 34 minutes. What is its speed in miles per hour?
    7·1 answer
  • What are roots of quadratic function completing the square x^2+4X-1=0
    15·1 answer
  • At Captain's Video Emporium, video club members can play PS5 games for $5 per night. The club also charges a $25.00 membership f
    6·1 answer
  • Solve for w<br> Please help
    14·1 answer
  • A person is running a distance race at a constant rate. What time will they finish the race what information would you need to b
    13·2 answers
  • Here is a graph of days(d) of year and the predicted number of hours of sunlight(h)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!