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
Luba_88 [7]
3 years ago
14

(5x2 – 3) + (8x2 - 1)

Mathematics
2 answers:
sineoko [7]3 years ago
5 0

Answer:

Step-by-step explanation:

(5x2-3)+(8x2-1)

 13x squared - 4

 (5 • (x2)) -  3) +  (23x2 -  1)

 (5x squared -  3) +  (8x squared - 1)

 13x squared - 4

GalinKa [24]3 years ago
3 0

Answer:

13x^2-4

Step-by-step explanation:

(5x^2-3)+(8x^2-1)=

5x^2+8x^2-3-1=

13x^2-4

You might be interested in
You are working as an apprentice for the bksb Newcastle Arena.
Advocard [28]
To find the area of the arena, you will need to find the areas of the rectangular spaces and the 2 semicircles. Because the formulas are given, I will just substitute in the values and show the work for finding the areas.

To find the perimeter, you will look at the distances of lines that take you around the space. Because two of these spaces are half circles, you will need to find the circumference of the full circle.

Also, the answers need to be given in meters, so all units given in centimeters will be divided by 100 to convert them to meters.

Perimeter:

C= 3.14 x 20 m
C = 62.8 meters

62.8 + 8 + 25 + 8 + 5 + 8 + 10 + 8 + 40= 174.8 meters for the Perimeter

Area:
A = 25 x 8
A = 200 square meters

A = 10 x 8
A = 80 square meters

A = 20 x 40
A = 800 square meters

A = 3.14 x 10^2
A = 314 square meters

Total Area: 314 + 800 + 80 + 200= 1394 square meters
8 0
3 years ago
What is the author's primary purpose in writing this
Sauron [17]

Answer:

he worked hard and hus purpose is to teach people how to learn I guess he wants the reader to know how hard time they spended his secondary purpose is to teach the value of time to people.....

4 0
3 years ago
A waiter earns $11.00 an hour and approximately 10% of what he serves in a shift. If he works a 6 hour shift and takes $425 in o
Kazeer [188]

Answer:

108.50

Step-by-step explanation:

First find the wages

11* 6 = 66 dollars

Then figure the commission

10% of 425

.10 * 425

42.5

Add the two amounts together

42.5+66

108.50

8 0
3 years ago
(01.04 MC)Simplify the following expression: (−4)(−2)(−3) A -24 B -11 C 11 D 24
lys-0071 [83]

Answer:

-24

Step-by-step explanation:

So in short this is what it means:

-4×-2×-3

So to work it out this is what you do:

Deal with the first two numbers; -4 × -2=8

It becomes an eight without a negative because when multiplying numbers with the same signs(positive or negative) the answer is always a positive number thus the answer becomes 8.

Then 8×-3=-24

This is because when multiplying a negative and positive numbers the answer is always a negative numbers thus -24.

So automatically the answer is -24.

HOPE IT HELPED

6 0
3 years ago
Read 2 more answers
A mode; car is 12 inches long . using a scale of 3 inches=4 feet. how long is the actual car.
Ainat [17]

Answer:

16  feet

Step-by-step explanation:

12 inches / 3 inches=4 x 4 feet =16 feet

5 0
3 years ago
Other questions:
  • A^3b^2 divided by a^-1b^-3
    13·1 answer
  • What are the different types of science
    6·2 answers
  • Tell whether the lines for each pair of equations are parallel, perpendicular, or neither.
    12·1 answer
  • Help please
    13·2 answers
  • A recipe calls for 1/3 of a cup of milk for 10 cookies. How many cups of milk are needed to make 60 cookies?
    9·2 answers
  • Which equation could be used to solve for the measure of angle R?
    10·2 answers
  • Find numerator that makes statement true? 2/4 is less than /6
    7·1 answer
  • PLEASE HELP ME WITH ALGEBRA PROBLEMS PLEASEEEE
    11·2 answers
  • Please help this is very important
    6·1 answer
  • i will give a crown if you are the first one to answer and if you get it right and if you just get it right then i will i give y
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!