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nalin [4]
3 years ago
15

N a number line, the directed line segment from Q to S has endpoints Q at –8 and S at 12. Point R partitions the directed line s

egment from Q to S in a 4:1 ratio.
Which expression correctly uses the formula to find the location of point R?

((m)/(m+n))(x_(2)-x_(1))+x_(1) <------formula
Mathematics
2 answers:
Tamiku [17]3 years ago
8 0

Answer:

The answer is B. on edgen

Step-by-step explanation:

B. (4/4+1)(12-(-8)) + (-8)

Evgen [1.6K]3 years ago
5 0
Answer: Point R will be at the number 8 on the number line.

From -8 to 12, there are 20 numbers. If we want to get a ratio of 4:1, we need to have 5 equal sections.

20 / 5 = 4

Since the ratio is 4:1 to R, we need to move 4 x 4 = 16 spaces from -8.

-8 + 16 = 8

Look for the equation that gives you a value of 8.
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Use the laplace transform to solve the given initial-value problem. y' + y = (t − 1), y(0) = 3
GaryK [48]

In mathematics, the Laplace transform, named after its discoverer Pierre Simon Laplace, transforms a function of real variables (usually in the time domain) into a function of complex variables (in the time domain). is the integral transform that Complex frequency domain, also called S-area or S-plane).

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5 0
2 years ago
Explain why the function is discontinuous at the given number
Blizzard [7]
For f to be continuous at x=5, we need to have

\displaystyle\lim_{x\to5}f(x)=f(5)

Note that x\to5 means that x\neq5, but that x is *approaching* 5. We're told that for x\neq5, we have

f(x)=\dfrac{x^2-5x}{x^2-25}

We can write

\dfrac{x^2-5x}{x^2-25}=\dfrac{x(x-5)}{(x+5)(x-5)}=\dfrac x{x+5}

and the limit would be

\displaystyle\lim_{x\to5}\frac x{x+5}=\dfrac5{5+5}=\dfrac5{10}=\dfrac12\neq1=f(5)

and so f is discontinuous.
5 0
3 years ago
Find the original price of the sale item. Original price: ? Discount: 36% Sale price: $32
Levart [38]

Answer:

The discount percentage was 36%. This means that $32 is 64% of the original cost.

Divide $32 by 64%: (32/.64= 50)

The original cost was $50.

Step-by-step explanation:

7 0
3 years ago
Which of the following is the representation of a decimal number? A. 1/2 B. .25 C. 23 D. 33/10
ddd [48]
B because there is a dot in front of the 25 which is also known as a decimal point.

8 0
4 years ago
Read 2 more answers
how old is sherif now ? ahmed is eight years younger than sherif in seven years, the sum of their ages will be 7/10 th of 100​
Mrrafil [7]

Answer:

32year

Step-by-step explanation:

let Ahmed be x years then sheriff will be x+8

in 7years time

sheriff will be x+8+7=x+15

Then Ahmed will be x+7

sum of their ages will be 7\10×100=70years

x+15+x+7=70

collect like terms

2x+22=70

2x=70-22

2x/2=48/2

x=24years

Sheriff=24+8

32years

8 0
3 years ago
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