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Otrada [13]
3 years ago
12

The line passes through the point (4,2) and has slope of -1

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
3 0

Answer:

y-2 = -1(x-4)

Step-by-step explanation:

We know the slope and a point .  We can use point slope form

y-y1 = m(x-x1)

y-2 = -1(x-4)

If we want the equation in slope intercept form

Distribute the -1

y-2 = -x+4

Add 2 to each side

y-2+2 = -x+4+2

y = -x+6

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3) (-14.2b - 97.35) + (10.9b + 12.53 + 3.5x)
sp2606 [1]

Answer : -3.3b + 3.5x - 84.82

(-14.2b - 97.35) + (10.9b + 12.53 + 3.5x)

= (-14.2b + 10.9b) + (3.5x) + (-97.35+12.53)  |||  COMBINE LIKE TERMS

= -3.3b + 3.5x - 84.82

5 0
2 years ago
Read 2 more answers
Can anyone help on number 6?
mestny [16]

Susana swam the fastest

4 0
3 years ago
A real estate company is interested in the ages of home buyers. They examined the ages of thousands of home buyers and found tha
egoroff_w [7]

Answer:

Between 21 years and 75 years

Step-by-step explanation:

Given that a real estate company is interested in the ages of home buyers. They examined the ages of thousands of home buyers and found that the mean age was 48 years old, with a standard deviation of 9 years.

X the ages of home buyers is N(48, 9)

a) 30\leq x\leq 66\\|x-48|\leq 18\\|x-48|\leq 2\sigma

Hence using Cheby chev inequality

P(|x-48|\leq 2\sigma)\geq 1-\frac{1}{2^2} \\=0.75

b) 25.5\leq x\leq 70.5\\|x-48|\leq 22.5\\|x-48|\leq 1.5\sigma

P(|x-48|\leq 1.5\sigma)\geq 1-\frac{1}{1.5^2} \\=0.556

c) Using normal distribution we have

P(|x-48|\leq 2\sigma)=0.95

d) z value is 2.97

Hence x lies between

(48-9*2.97, 49+9*2.97)\\=(21.27,74.73)

Between 21 years and 75 years

4 0
3 years ago
Discrete math question. can you please make it easier to understand. thanks.
umka21 [38]

Answer:

It doesn't exist

Step-by-step explanation:

The graph must follow the handshake lemma: the sum of odd vertex degrees must be an even number: 1+3+5=9

4 0
3 years ago
What strategy can be used to solve 8 x 25 x 23
wariber [46]
The best way to multiply complicated problems mentally* is to break them into chunks.

Start with 20 times 8 to get 160, and then 8 times 5 to get 40. Add these together to get 200. 200 times 3 is 600, and 20 times 200 is 4000. Add these together to get your final answer, 4600. 

In other words 8 x 20 + 8 x 5 = 200  200 x 3 + 200 x 20 = 4600

*I assumed you meant mentally, because otherwise you'd just multiply longhand, multiplying two of the three numbers and then multiplying their product with the third. 
7 0
3 years ago
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