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Ber [7]
2 years ago
13

What is the slope of the line passing through the point(2,-1) and the origin.

Mathematics
1 answer:
tiny-mole [99]2 years ago
7 0

Answer:

- 1/2

Step-by-step explanation:

(0,0) (2,-1)

m = difference of y/difference of x = (-1 - 0) / (2 - 0) = - 1/2

y = - 1/2 x

You might be interested in
What is the solution set for the inequality x < -2 or x > 6
bija089 [108]

he solution set is

{ x ∣ x > 1 } .


Explanation

For each of these inequalities, there will be a set of

x

-values that make them true. For example, it's pretty clear that large values of

x

(like 1,000) work for both, and negative values (like -1,000) will not work for either.

Since we're asked to solve a "this OR that" pair of inequalities, what we'd like to know are all the

x

-values that will work for at least one of them. To do this, we solve both inequalities for

x

, and then overlap the two solution set

8 0
3 years ago
William invested $2,300 in an account paying an interest rate of 2 1/8% compounded quarterly. Nolan invested $2,300 in an accoun
shusha [124]

Answer:

$478

Step-by-step explanation:

After 20 years, William will have a total of $3,513.94

After 20 years, Nolan will have a total of $3,991.93

Difference = $478

William:

2300[1 + (.02125 ÷ 4)]^4 · 20

2300 · (1 + .0053125)^80

2300(1.5278)

$3,513.94

Nolan:

2300[1 + (.0275 ÷ 12)]^12 · 20

2300 · (1 + .0023)^240

2300(1.7356)

$3,991.93

6 0
3 years ago
Read 2 more answers
Perlia paid for a dinner and left 20%, or $5.80, in tips. How much was the original bill (without counting the tip)?
klio [65]
Original bill is 100%/20% *5.8=29
(dollars)
3 0
2 years ago
What are the factors of m^2-12m+20
Juli2301 [7.4K]

Answer:

(m - 10)(m - 2)

Step-by-step explanation:

We need 2 numbers whose product is + 20 and whose sum = -12. They are -10 and -2.  These go into the 2 parentheses:

(m - 10)( m - 2).

4 0
3 years ago
Read 2 more answers
A certain tennis player makes a successful first serve 6969​% of the time. Suppose the tennis player serves 9090 times in a matc
Wewaii [24]

Answer:

a) 4.387

b) Yes, because np & npq are greater than 10.

c) = 0.017          

Step-by-step explanation:

Give data:

p = 0.69

n = 90

a) a

E(X) = np = 62.1

SD(X) = \sqrt{(np(1-p))}

          =\sqrt{90\times 0.69(1- 0.69)}

          = 4.387

b)

np = 62.1  

q = 1 - p  = 1 - 0.69 = 0.31

npq = 19.251

Yes, because np & npq are greater than 10.

c.

P(X \geq 72   ) = P(X > 71.5) [continuity correction]

=    P(Z> \frac{((71.5-62.1)}{ 4.387})

= P(Z> 2.14 )      

= 1 - P(Z<2.14)              

= 1 - 0.983   (using table)          

= 0.017          

8 0
3 years ago
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