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
bazaltina [42]
3 years ago
7

Find the sum of: 72 − 104 + 5 and -32 + 4 - 10. What should be added to 32 + 32 + 3 to get 3 + 3 ? (1 mark) 3. Subtract the sum

of 12ab –10bc –18ac and 9ab + 12bc + 14ac from the sum of ab + 2bc and 3bc – ac. Answer these with Explanation To be marked as BRAINLIEST!
Mathematics
1 answer:
Rzqust [24]3 years ago
5 0

Answer:

a). -65

b). -61

c). -20ab + 3bc +3ac

Step-by-step explanation:

According To the Question,

a). the sum of 72 − 104 + 5 and -32 + 4 - 10 .

  • (72 − 104 + 5) + (-32 + 4 - 10)
  • (-27) + (-38)
  • -27 - 38
  • -65

b). What should be added to 32 + 32 + 3 to get 3 + 3 , Let X be Added .

  • Thus,  (32 + 32 + 3) + X = 3 + 3
  • 67 + X = 6
  • X = 6 - 67
  • X = -61

c). Subtract  the sum of 12ab –10bc –18ac and 9ab + 12bc + 14ac from the sum of ab + 2bc and 3bc – ac.

  • Thus, [(ab + 2bc) + (3bc – ac)] - [( 12ab –10bc –18ac) + (9ab + 12bc + 14ac)]
  • (ab + 5bc - ac) - (21ab + 2bc - 4ac)
  • ab + 5bc - ac - 21ab - 2bc + 4ac
  • -20ab + 3bc + 3ac

You might be interested in
the frame of a picture is 28 cm by 32 cm outside and is of uniform width.What is the width of the frame if 192 cm2 of the pictur
natita [175]

Answer:

The width of the frame is equal to 8\ cm  

Step-by-step explanation:

Let

x-------> the width of the frame picture

we know that

(28-2x)(32-2x)=192    

896-56x-64x+4x^{2} =192

4x^{2}-120x+704=0  

Simplify

x^{2}-30x+176=0

The formula to solve a quadratic equation of the form ax^{2} +bx+c=0 is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^{2}-30x+176=0

so

a=1\\b=-30\\c=176

substitute in the formula

x=\frac{30(+/-)\sqrt{(-30)^{2}-4(1)(176)}} {2(1)}

x=\frac{30(+/-)\sqrt{196}} {2}

x=\frac{30(+/-)14} {2}

x=\frac{30+14} {2}=22\ cm  ----> this solution is not logic

x=\frac{30-14} {2}=8\ cm  

The width of the frame is equal to 8\ cm  

8 0
3 years ago
Layla is using her compass and straightedge to complete a construction of a polygon inscribed in a circle. Which polygon is she
Kaylis [27]
Layla is creating a polygon with 4 equal sides in a circle.
This will be a regular polygon with 4 equal sides and 4 equal angles,

Layla is creating a square inside a circle.
7 0
3 years ago
Read 2 more answers
BESTIES HELP ME PLEASE ANSWER THIS CORRECLTY, PLEASE TELL ME WHICH ONE OF THESE IS A LINEAR EQUATION, AND WHICH ONE IS NOT. YOU'
love history [14]

Answer:

Step-by-step explanation:

Which of what? There is no ss.

7 0
3 years ago
Please help me its 1;23 am and i cant think at all
Misha Larkins [42]
Hope this answer helps you! If it did, please mark it as the brainiest! I would really appreciate it! :)

8 0
3 years ago
What can you say about the relationship between M and P? Which letter is the correct answer?
Dimas [21]

Answer:

Choice C is correct

Step-by-step explanation:

The first step is to re-write the equations in exponential form.

The first equation can be written as;

\frac{M}{N}=10^{4} since the base is 10 and 4 the exponent.

The second equation can be written as;

\frac{P}{N}=10^{5}

The second step is to make N the subject of the formula in both equations.

Solving for N from this equation \frac{M}{N}=10^{4}, yields;

N=\frac{M}{10^{4}}

Solving for N from the second equation \frac{P}{N}=10^{5}, yields;

N=\frac{P}{10^{5}}

Therefore;

\frac{M}{10^{4}}=\frac{P}{10^{5} }\\\\P=10M

6 0
3 years ago
Other questions:
  • If 5 balls are placed randomly into 3 bins, what is the expected number of balls in each bin?
    15·1 answer
  • steve picks 55 pounds of pears. he packs an equal amount of pears into 6 bags. he then has 4 pounds of pears left. what is the w
    6·1 answer
  • Wat is 1/2 of 1 litre​
    13·2 answers
  • Point slope form for (-10,3) and (-2,-5)
    14·2 answers
  • Please solve all or even most of these (simplify using order of operation)!
    6·1 answer
  • Help me I'm in exam and its time<br> Solve for x: 3(x - 5) + 4x = 2x + 8
    7·2 answers
  • Janet must paint her outdoor cicular tabletop
    8·1 answer
  • if a girl has 15 dirhums to buy lunch. she wants to buy one of each of the foods. how much more money will she need to buy lunch
    9·1 answer
  • Pleas help me find the area of this compound shape I will give you loads of points
    9·2 answers
  • 4X9 help<br> plsss I will give branilyst
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!