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
denpristay [2]
3 years ago
13

The value of the expression 30 - 3x3

Mathematics
1 answer:
BaLLatris [955]3 years ago
3 0

Answer:

<em>21</em>

Step-by-step explanation:

<em>30-(3*3)</em>

<em>Follow the rule:</em>

<em>PEMDAS</em>

<em>parenthesis, exponents, multiplication, division, addition, subtraction.</em>

<em>Since we know that multiplication comes first before subtraction in PEMDAS, we do multiplication first. We can also put PARENTHESES around (3*3) because the multiplication comes first.</em>

<em>So:</em>

<em>30-(6)=</em>

<em>21!</em>

Hope this helps, have a good day. c;

You might be interested in
19. Use Gauss-Jordan elimination to solve the following system of equations. 3x + 5y = 7 6x − y = −8
MrRa [10]

\left[\begin{array}{cc}3&5\\6&-1\end{array}\right] \left[\begin{array}{c}x\\y\end{array}\right] = \left[\begin{array}{c}7\\-8\end{array}\right]\\\left[\begin{array}{cc|c}3&5 &7\\ 6& -1 & -8\end{array}\right] \rightarrow \left[\begin{array}{cc|c}3&5& 7\\0&-11 & -22\end{array}\right] \rightarrow \left[\begin{array}{cc|c}3&5& 7\\0&1 & 2\end{array}\right]\\3x +5y = 7\\\\y = 2\\\therefore x = -1

6 0
3 years ago
In a standardized normal distribution the mean is ____ while the standard deviation is ____.
Vlad [161]
I think D. I’m not sure so it might be wrong
5 0
3 years ago
You have designed a concrete patio which is the shape of a parallelogram and a triangle combined. The parallelogram has a length
MAXImum [283]

Answer:

perimeter is 35.6 area is 108

Step-by-step explanation:

it helps to draw a picture. first the perimeter of the rectangle is 4x2 +12=20 we wont be needing one of the twelves because it is connected to the triangle the area or the rectangle is 12x4=48. now for the triangle. we will need the Pythagorean theorem to find the sides first split the base in half 12/2=6 now we use the height and the base 6^{2} +5x^{2} =6

2

+5x

2

= 61 the square root of 61 is about 7.8 the perimeter is 7.8+7.8 +12 but we wont need the base because it is attached to the rectangle =15.6 the area of the triangle is like half a square Base times height though 12x5=60

the whole perimeter if 15.6+20=35.6 the area is 60+48=108

wlcm♥️

7 0
3 years ago
Segment Line segment X Y is dilated using a scale factor of Two-thirds through P. Which segment shows the correct result of the
garik1379 [7]

Answer:

We need the segments but which ever one has the segment that is 2/3 times the length of segments xy

Step-by-step explanation:

4 0
3 years ago
Which of the following equals 0.000001?
marusya05 [52]
The best option is B. 1*10^-6.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which of these numbers is a prime 1,11,21,51
    9·2 answers
  • A contractor combined x tons of a gravel mixture that contained 10 percent gravel G, by weight, with y tons of a mixture that co
    6·1 answer
  • A tennis lesson lasts from 9:00 am to 10:00 am and should include an 8 min break with equal time before and after the break at w
    5·1 answer
  • Please help, having a hard time
    5·2 answers
  • What is the slope of the line that passes through the given points? (6, 2) and (7, 4)
    8·1 answer
  • Joan had $126 to spend on 9 books after buying them she had $18 how much did each book cost
    15·2 answers
  • WHICH NUMBER IS BIGGER? -10 OR -1 EXPLAIN *
    5·1 answer
  • I NEED THIS ASAP!!
    5·1 answer
  • Write a function to represent the set of ordered pairs.<br> {(2, 2), (3,7). (4, 14), (5,23)}
    5·1 answer
  • Hansen thinks his pet goldfish, Finn, might be lonely. So, Hansen buys another goldfish to keep Finn company. He also buys a lar
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!