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
mezya [45]
2 years ago
6

Help me and i need an explanation please

Mathematics
1 answer:
jekas [21]2 years ago
7 0

Answer:

Integers, Real numbers, Rational Numbers and, Whole numbers.

Btw all whole numbers are integers because an integer is any whole number that's not a fraction or anything other than a whole number.

Step-by-step explanation:

It's not irrational because those have pi in them or go on and on.

You might be interested in
Sarah kicked a ball in the air. The function
Aleksandr-060686 [28]

Answer: The ball hits the ground at 5 s

Step-by-step explanation:

The question seems incomplete and there is not enough data. However, we can work with the following function to understand this problem:

f=30 t- 6t^{2} (1)

Where f models the height of the ball in meters and t the time.

Now, let's find the time t when the ball Sara kicked hits the ground (this is when f=0 m):

0=30 t- 6t^{2} (2)

Rearranging the equation:

6t^{2}-30 t=0 (3)

Dividing both sides of the equation by 6:

t^{2}-5 t=0 (4)

This quadratic equation can be written in the form at^{2}+bt+c=0, and can be solved with the following formula:  

t=\frac{-b \pm \sqrt{b^{2}-4ac}}{2a} (5)  

Where:  

a=1  

b=-5  

c=0  

Substituting the known values:  

t=\frac{-(-5) \pm \sqrt{(-5)^{2}-4(1)(0)}}{2(1)} (6)  

Solving we have the following result:

t=5 s  This means the ball hit the ground 5 seconds after it was kicked by Sara.

6 0
3 years ago
Given the functions, fx) = x - 8 and g(x) = x2 + x - 1, perform the indicated operation. When applicable, state the domain
adell [148]

Answer:

A

Step-by-step explanation:

(fg)(x) = f(x) × g(x)

= (x - 8)(x² + x - 1)

Each term in the second factor is multiplied by each term in the first factor, that is

x(x² + x - 1) - 8(x² + x - 1) ← distribute both parenthesis

= x³ + x² - x - 8x² - 8x + 8 ← collect like terms

= x³ - 7x² - 9x + 8 → A

There are no restrictions on the domain.

4 0
3 years ago
Can someone please check to make sure I got this correct? I would appreciate if you showed your work so that I could compare wit
dmitriy555 [2]

Answer:

-4

Step-by-step explanation:

[√2(cos(3π/4) + i sin(3π/4))]⁴

(√2)⁴ (cos(3π/4) + i sin(3π/4))⁴

4 (cos(3π/4) + i sin(3π/4))⁴

Using De Moivre's Theorem:

4 (cos(4 × 3π/4) + i sin(4 × 3π/4))

4 (cos(3π) + i sin(3π))

3π on the unit circle is the same as π:

4 (cos(π) + i sin(π))

4 (-1 + i (0))

-4

8 0
3 years ago
Tyler purchased a shirt that was on sale for 15% off the original price. The original price of the shirt was d dollars. Decide w
vichka [17]
I think the answer would be <span>A=0.85
B=(1 - 0.15)d
C=85d
D=0.85d</span>
5 0
3 years ago
Can someone help me with the working out please its due Tomorrow
slavikrds [6]
1) 12p+12q 2) 11p-11q 3)2p-10q
3 0
3 years ago
Other questions:
  • What is the radius of a semi circle when the area is 20cm
    5·1 answer
  • 20 PTS
    9·1 answer
  • Can you please help me !!!
    9·1 answer
  • PLEASE HELP ME W THIS !! I RLLY SUCK AT MATH LOL
    15·1 answer
  • $2.70 for 15 ounces please help asap
    5·1 answer
  • Compare investing $1500 at 9% compounded monthly for 11 years with investing $1500 at 14% compounded monthly for 11 years.
    6·1 answer
  • What is the order of rotational symmetry for hexagon ABCDEF?
    8·1 answer
  • 9.87x10^8 in standard form​
    14·1 answer
  • What is the answer -50 1/2+(-12.3) pls help
    10·2 answers
  • identify the kind of sample that is described. the superintendent of a large school district wants to test the effectiveness of
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!