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
marin [14]
3 years ago
15

PLEASE HELP ASAP Which of the following expressions is equivalent to the expression 42 + 90?

Mathematics
1 answer:
lubasha [3.4K]3 years ago
5 0

Answer:

6(7+15)

Step-by-step explanation:

6×7=42

6×15=90

You might be interested in
Can someone help me with this I don't understand.
Troyanec [42]
First step, write down the expression on one line, using necessary parentheses. 

(2^8*5^(-5)*19^0)^(-2) * (5^(-2)/2^3)^4 *2^28

The apply the PEMDAS rule to simplify according to priority:
1. Parentheses
2. Exponentiation
3. Multiplication and Division (left to right)
4. Addition and Subtraction (left to right)

For exponentiation, it is convenient to convert all negative exponents to positive by taking the reciprocal, for example,
a^(-2)= 1/(a^2)
So
(2^8*5^(-5)*19^0)^(-2) * (5^(-2)/2^3)^4 *2^28
=1/[(2^8*5^(-5)*19^0)^(2)] * (1/[5^2*2^3])^4 *2^28
=5^5/[(2^8*19^0)^(2)] * (1/[5^2*2^3])^4 *2^28
Remember positive numbers raised to power zero equals 1, e.g.
a^0=a for any number a.
so 19^0=1
=5^10/[(2^8)^(2)] * (1/[5^2*2^3])^4 *2^28
Now, powers raised to a power equals the product of the powers, e.g.
(2^8)^2=2^16, (5^2)^4=5^8, (2^3)^4=2^12...
continuing,
=5^10/[2^16] * 1/[5^8*2^12] *2^28
When we have exponents to the same base in the denominator and numerator, we subtract exponents, e.g.
5^5/5^8=5^(5-8)=5^(-3), 2^28/[2^16*2^12]=2^(28-16-12)=2^0=1
so we get rid of many terms this way
continuing
=5^(10-8)*2^(28-16-12)
=5^2*2^0
=25*1
=25
3 0
3 years ago
Which polygon will tessellate the plane?
Sedaia [141]

Answer:

Equilateral triangles, squares and regular hexagons are the only regular polygons  that will tessellate. Therefore, there are only three regular tessellations.

Step-by-step explanation:

6 0
3 years ago
Is -16/-2 rational or irrational?
mel-nik [20]

Answer:

Totally Rational

Step-by-step explanation:

-16/-2 would give you 8 which is a rational number

<em><u>I hope this helps, dont hesitate to ask for any question.Mark me as brainliest is appreciated.Tq!!</u></em>

4 0
3 years ago
Plz help for exam!!!<br> Solve for x and y.
ad-work [718]

Answer:

A x-198,y-99\sqrt{3}

Step-by-step explanation:

since sin p/h you can say

perpendicular is 99

and hypotenuse is x

sin 30=99/x

x=198

and cos is b/h

base is y

and hypotenuse is x

cos 30=y/198

y-99\sqrt{3}

6 0
3 years ago
Sixty-five percent of men consider themselves knowledgeable soccer fans. If 10 men are randomly​ selected, find the probability
alexira [117]

Answer:

.252

Step-by-step explanation:

{10\choose7}*.65^7*(1-.65)^3=.252219625

3 0
3 years ago
Other questions:
  • Which expressions are equivalent to 4(4a+5) ?Choose 3 answers: (Choice A) 16a+5 (Choice B,) 16a+20 (Choice C) 12a+20+4a (Choice
    15·1 answer
  • You are given
    8·1 answer
  • Find the percent of increase from 1.5 inches to 6 inches​
    6·1 answer
  • The point (5, 7) is reflected over the x-axis. What are the coordinates of its image?
    7·2 answers
  • Factor<br> 8x2 – 14x – 15
    9·2 answers
  • Currently, your masks sell for $1 each. At that price you are able to sell 6000
    9·1 answer
  • Classify the triangle by its sides and angles. ​
    9·2 answers
  • I need help with question 2 on the attatched document.​
    7·1 answer
  • Drag the tiles to the correct boxes to complete the pairs
    6·1 answer
  • An artist charges a $50 supply fee, plus $35 per hour for classes. write an equation to represent the total cost, c, based on th
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!