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
o-na [289]
3 years ago
5

I’m having some trouble with this can someone pls help?

Mathematics
1 answer:
OlgaM077 [116]3 years ago
8 0

Answer:

80% of 16 is 12.8

Step-by-step explanation

80% = 0.8

16*0.8=12.8

You might be interested in
How do you Graph this <br> Y = 5x + 12<br> y = 2x - 4
SpyIntel [72]
Use the app Desmos it’s a graphing calculator! Or you can go to y= if you have a TI-84 plus calculator

7 0
3 years ago
What is the measure of angle ABC?
Angelina_Jolie [31]
B. 42 degrees
Angle ABC is an inscribed angle so u have to divide Arc AC by 2 to find angle ABC.

84degrees divided by 2 is 42 degrees.
7 0
3 years ago
Read 2 more answers
Find the equation of the line. Use exact numbers <br><br> Y= __ x+ __
nika2105 [10]

Answer:

y = 3/4x -2

Step-by-step explanation:

slope = rise/run = 3/4

y intercept is where the line crosses the y axis, it crosses at -2

5 0
3 years ago
(-6x3-4x2-8)+(x3-x2-9x+4) add together and simply
Aleksandr [31]

Answer:

-5x³ -5x² -9x - 4

Step-by-step explanation:

(-6x³-4x²-8)+(x³-x²-9x+4)

Add the like terms.

-6x³ and x³ are like terms. -6x³ + x³ = -5x³

-4x² and -x² are like terms. -4x² - x² = -5x²

-8 and 4 are like terms. -8 + 4 = -4

-6x³-4x²-8 +x³-x²-9x+4 = -5x³ -5x² -9x - 4

6 0
3 years ago
Anyone knows how to do questions 7 and 8? 15 pts!!
Oksi-84 [34.3K]
7) Certainly there is a typo in the statement, just see that the expression of item (ii) is different from that of item (i). Probably the correct expression is: 2x^2-4x+5. With this consideration, we can continue.

(i) Let E the expression that we are analyzing:

E=2x^2-4x+5\\\\ E=2x^2-4x+2-2+5\\\\ E=2(x^2-2x+1)-2+5\\\\ E=2(x-1)^2+3

Since (x-1)² is a perfect square, it is a positive number. So, E is a result of a sum of two positive numbers, 2(x-1)² and 3. Hence, E is a positive number, too.

(ii) Manipulating the expression:

2x^2+5=4x\\\\ 2x^2-4x+5=0

So, it's the case when E=0. However, E is always a positive number. Then, there is no real number x that satisfies the expression.

8) Let E the expression that we want to calculate:

E=(2+1)(2^2+1)(2^4+1)\cdot ...\cdot(2^{32}+1)+1\\\\ E-1=(2+1)(2^2+1)(2^4+1)\cdot ...\cdot(2^{32}+1)

Multiplying by (2-1) in the both sides:

(2-1)(E-1)=(2-1)(2+1)(2^2+1)(2^4+1)\cdot ...\cdot(2^{32}+1)\\\\ (E-1)=\underbrace{(2-1)(2+1)}_{2^2-1}(2^2+1)(2^4+1)\cdot ...\cdot(2^{32}+1)\\\\ (E-1)=\underbrace{(2^2-1)(2^2+1)}_{2^4-1}(2^4+1)\cdot ...\cdot(2^{32}+1)\\\\ ... Repeating the process, we obtain: ...\\\\ E-1=(2^{32}-1)(2^{32}+1)\\\\ E-1=2^{64}-1\\\\ \boxed{E=2^{64}}
3 0
3 years ago
Read 2 more answers
Other questions:
  • What is 72/9+4x4= thanks
    14·2 answers
  • Please Help! Thanks!
    8·1 answer
  • You have to spend money to make money ! You purchase a mix of newspaper ads and online ads. Each newspaper ad cost $18.50 and ea
    8·1 answer
  • I have SAT's tomorrow and need help with math...
    11·1 answer
  • Points A, B, C, and D are located on a line. A is at (-6,13), D is at (2,14), C is the midpoint of AD and B is the midpoint of A
    14·1 answer
  • Draw a model and write an equation to represent four times as many as 3 is 12 explain your work
    14·1 answer
  • Is this relation a function? EXPLAIN WHY OR WHY NOT
    13·1 answer
  • A graph has time (years) on the x-axis and height (inches) on the y-axis. A line goes through points (2, 5) and (4, 10).
    11·1 answer
  • Find a basis for the orthogonal complement of the subspace of R4 spanned by the vectors. v1 = (1, 4, -5, 3), v2 = (4, 15, 0, 5),
    13·1 answer
  • Simplify.<br><br> (–12x) ÷ (–2)<br><br> 6x<br><br> 112x<br><br> 12x<br><br> 3x
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!