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
lara31 [8.8K]
3 years ago
8

Please help!!! Options- 15.3 10.2 233 21

Mathematics
2 answers:
spin [16.1K]3 years ago
7 0
You’re answer would be A
Rama09 [41]3 years ago
4 0
8^2 + 13^2 = c^2
64 + 169 = c^2
233 = c^2
15.26 = c

your answer would be A. 15.3

hope that helped
You might be interested in
How many solutions does the system have?<br> y=-2x -4 <br> y=3x + 3
baherus [9]

Answer:

x=−7/5and y=−6/5

Step-by-step explanation:

Step: Substitute−2x−4foryiny=3x+3:

y=3x+3

−2x−4=3x+3

−2x−4+−3x=3x+3+−3x(Add -3x to both sides)

−5x−4=3

−5x−4+4=3+4(Add 4 to both sides)

−5x=7

−5x

−5

=

7

−5

(Divide both sides by -5)

x=−7/5

7 0
3 years ago
Give an example of a function f : N → N that is surjective but not injective. You must explain why your example is surjective an
Helen [10]

Answer:

Consider f: N → N defined by f(0)=0 and f(n)=n-1 for all n>0.

Step-by-step explanation:

First we will prove that f is surjective. Let y∈N be any natural number. Define x as the number x=y+1. Then x∈N, and f(x)=x-1=(y+1)-1=y.  We conclude that f is surjective.

However, f is not injective. Take x1=0 and x2=1. Then x1≠x2 but f(x1)=0 and f(x2)=x2-1=1-1=0. We have shown that there are two natural numbers x1,x2 such that x1≠x2 but f(x1)=f(x2), that is, f is not injective.

Note:

If 0∉N in your definition of natural numbers, the same reasoning works with the function f: N → N defined by f(1)=1 and f(n)=n-1 for all n>1. The only difference is that you consider x1=1, x2=2 for the injectivity.

7 0
2 years ago
Describe what the notation Upper P (Upper B vertical line Upper A )represents.
sergey [27]

Answer: Option 'D' is correct.

Step-by-step explanation:

Since we have given that

Upper P (Upper B vertical line Upper A)

means

P(B|A)

It means that probability of getting event B given that Event A is occurred.

D. The probability of event B​ occurring, given that event A has already occurred. is also expressed as P(B|A)

Hence, Option 'D' is correct.

4 0
3 years ago
Which expressions are equivalent to z+(z+6)
Nezavi [6.7K]

Answer:

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
When 4(0.5x+2.5y-0.7x-1.3y+4) is simplified, what is the resulting expression?
padilas [110]

Answer:

-0.8x + 4.8y + 16

Step-by-step explanation:

4(0.5x+2.5y-0.7x-1.3y+4) = 4( 0.5x - 0.7x  + 2.5y - 1.3y + 4)

= 4( -0.2x  + 1.2y + 4)

= 4*(-0.2x)  + 4 *1.2y + 4*4

= -0.8x + 4.8y + 16

8 0
2 years ago
Read 2 more answers
Other questions:
  • a photographer shines a camera light at a particular painting forming an angle of 50 degrees with a camera platform at the light
    14·1 answer
  • Find the arc measure ML.
    12·1 answer
  • Convert 8.6 ha to km².<br> Remember to include units with your answer.
    8·1 answer
  • Simplify the equation 5x + 4 = -16
    13·1 answer
  • When sandra walk through the house she saw that 18 lights are on and only one third of the lights were off how many lights were
    12·1 answer
  • The door has marbles in it 3/10 of the marbles are red 5/10 of the marbles are blue two tenths of the marbles are green which of
    7·1 answer
  • I can find the common denominator of fractions with unlike denominators.
    7·1 answer
  • PLEASE HELP EMERGENCY have a great day
    6·1 answer
  • Tim buys a torch and a battery. The torch costs 11 times as much as the battery. Tim pays with a £10 note and gets £4.84 change.
    12·1 answer
  • Three hundred tenured professors at Florida Universities are randomly sampled and are asked: “On what day of the week were you b
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!