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kakasveta [241]
3 years ago
7

Please help! Need to pass a module test!

Mathematics
2 answers:
ICE Princess25 [194]3 years ago
6 0
First, you need to find the slope (m) =3 and your slope intercept form being y=mx+b; look for the one that says y=3x+__. don't use this every time because there could be T that say it.
slega [8]3 years ago
5 0
-1 - 8 / 2 + 1 = -9 / 3 = -3

-1 = -3(2) + b
-1 = -6 + b
Add 6 to both sides.
5 = b

y = -3x + 5
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The value of a bicycle was recorded over a period of five years. Based on how the plot of the residuals
slamgirl [31]
Answer =yes, the residuals would tend to be one sided
8 0
3 years ago
F(x)=2x^(2)-5x-20 find f(-9)
Fed [463]

Answer:

<h2>187 </h2>

Step-by-step explanation:

f(x) = 2 {x}^{2}  - 5x - 20

To find f(-9) , substitute the value of x that's - 9 into f (x). That is for every x in f(x) replace it with - 9

We have

f( - 9) = 2 ({ - 9})^{2}  - 5( - 9) - 20 \\  = 2(81) + 45 - 20 \\  = 162 + 25 \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:    \\  = 187 \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:

We have the final answer as

<h3>187</h3>

Hope this helps you

7 0
3 years ago
Read 2 more answers
How many solutions 9x +2y =9 -3x + y=2
Tju [1.3M]

Answer:

4

Step-by-step explanatio

6 0
3 years ago
A and b are independent. calculate p(a or<br> b.if p(a) = 0.22 and p(b) = 0.24.
ziro4ka [17]
If events A and B are independent, 
For mutually exclusive then  p(A or B) = p(A) + p(B).

For not mutually exclusive then p(A or B) = p(A) + p(B) - p(A and B)
And:        p(A and B) = p(A) * p(B)


Given: <span>p(A) = 0.22 and p(B) = 0.24.
</span>
<span>∴ p(A and B) = p(A) * p(B) = 0.22*0.24 = 0.0528
</span>

If A and B are mutually exclusive
∴ p(A or B) = p(A) + p(B) = 0.22 + 0.24 = 0.46

If A and B are not mutually exclusive
∴ p(A or B) = p(A) + p(B) - p(A and B) = 0.22 + 0.24 - <span>0.0528 = 0.4072
</span>
=============================================

note: Two events are mutually exclusive if it is not possible for both of them to occur, which mean the occurrence of one event "excludes" the possibility of the other event.
4 0
3 years ago
Can sum1 help me with this question
lutik1710 [3]

Answer:

Second option is the correct choice.

Step-by-step explanation:

Thanks!

8 0
3 years ago
Read 2 more answers
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