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forsale [732]
3 years ago
8

50 POINTS for both questions

Mathematics
2 answers:
vitfil [10]3 years ago
7 0

Answer:

thats 5 points why u sayin 50

Step-by-step explanation:

love history [14]3 years ago
6 0

Answer:

3. i think 15.5

4. 140*

Step-by-step explanation:

in number 4, d is a vertical angle to the angle measured at 140.

in number 3, QV=SV, so 17=4x-1     18=4x    18/4=x   x=4.5

and TS=TQ, so 3(x) + 2 = 3(4.5) + 2 = 13.5 + 2 = 15.5 =TQ

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There are 440 students, ratio of male to female students is 6 to 5. Find how many male and female students in a class
aivan3 [116]
The answer is:
6: 66
5: 55
7 0
3 years ago
Read 2 more answers
A circle is centered at (-4, 6) and has a radius of 9. What is the equation of the circle? Question 3 options: (x+4)2+(y−6)2=18
Lera25 [3.4K]

Answer:

(x+4)² + (y-6)² = 81

Step-by-step explanation:

<u>General equation of a circle :</u> (x-h)² + (y-k)² = r²

where (h,k) is at center and r = radius

Here we are given that the circle has a center at (-4,6) and a radius of 9

So we have (h,k) = (-4,6) so h = -4 and k = 6 and radius = 9 so r = 9

<u>Plugging in values into general equation</u>

Recall that the general equation of a circle is (x-h)² + (y-k)² = r²

we have h = -4 , k = 6 and r = 9

==> plug in values

doing so we acquire (x-(-4))² + (y-6)² = 9²

==> apply double negative sign rule

(x+4)² + (y-6)² = 9²

==> evaluate exponent

(x+4)² + (y-6)² = 81

And we are done!

3 0
2 years ago
Let P(x,y) be a propositional function if ꓯyꓱxP(x,y) is true does it necessarily follow that ꓱxꓯyP(x,y) is true? Justify your an
andrew11 [14]

Answer:

It is NOT TRUE

Step-by-step explanation:

ꓯyꓱxP(x,y)  

means that for each value of  y there exist x such that P(x,y) is true

whereas

ꓱxꓯyP(x,y)

means that there exists x such that for each value y, P(x,y) is true.

In the second case, the same x must work for every element y.

Counter-example

Consider  

P(x,y) the following proposition

x-y = 0, for x, y integers.

Given an integer y, there is another integer x (namely, x=-y) such that

x-y = 0

so, ꓯyꓱxP(x,y) is TRUE

If ꓱxꓯyP(x,y) were TRUE, then would exist a single unique value of x such that P(x,y) is TRUE for every integer y.

Then P(x,1) and P(x,2) would be both TRUE and

x-1 = 0

x-2 = 0

and we conclude 1=2, which is a contradiction.

So  ꓱxꓯyP(x,y) is NOT TRUE (FALSE)

5 0
3 years ago
Michael needs to read 3 novels each month. Let N be the number of novels Michael needs to read in M months. Write an equation re
PIT_PIT [208]

Answer: I'm not sure if this if the correct answer but my best guess would be 3N=1M or something like that.

I can't do the second part without seeing a picture or something

I'm sorry if this was wrong

Step-by-step explanation:

8 0
3 years ago
The interior angles of a triangle measures 180?<br> True or false
Ymorist [56]
 it is true because al triangles angles MUST add up to  180
8 0
3 years ago
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