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3 years ago

point a is on line segment RT. Given ST = 2x, RT = 4x, and RS = 4x -4 determine the numerical length of RS

Mathematics

1 answer:

Andrei [34K]3 years ago

3 0

Forty nine x plus 15x -ggsg and y will get 13

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Here are some temperatures. Edinburgh -5 °C Exeter 3 °C Manchester -2 °C a) Which place is the coldest? b) Give the difference i

ruslelena [56]

Answer:A)Edinburgh B)5 degrees celsius C)-7

Step-by-step explanation:

7 0

2 years ago

3(x-12)=15 what number is x fist to answer gets brainlest

Bingel [31]

Answer:

x = 17

Step-by-step explanation:

3(x-12)=15

x-12+12=5+12

7 0

2 years ago

Help Plss simply can u show step by step ?-4(8x-4)+3x

Vikentia [17]

Answer:

-4(8x-4)+3x = -29x+16

Step-by-step explanation:

1. Simplify -4(8x-4) by using the distribution property:

-4(8x) = -32x and -4(-4) = 16 so -4(8x-4) = -32x+16

2. Add 3x to the remaining equation:

-32x+16+3x = -29x+16

3. The answer is:

-29x+16

6 0

3 years ago

Line segment AB has a midpoint, M at (2,6). If point B is located at (-3,10), what is location of point A?

Alex787 [66]

Answer is D.
As M is the midpoint of A and B; denote A(x,y); then x and y have to matched the two equations below:
(x- 3) : 2 = 2 <=> x = 7 and
(y +10) : 2 = 6 <=> y = 2
Conclusion : A (7,2)

4 0

3 years ago

A certain virus infects one in every 200 people. a test used to detect the virus in a person is positive 70% of the time when t

V125BC [204]

We're told that

$P(A)=\dfrac1{200}=0.005\implies P(A^C)=0.995$

$P(B\mid A)=0.7$

$P(B\mid A^C)=0.05$

a. We want to find $P(A\mid B)$ . By definition of conditional probability,

$P(A\mid B)=\dfrac{P(A\cap B)}{P(B)}$

By the law of total probability,

$P(B)=P(B\cap A)+P(B\cap A^C)=P(B\mid A)P(A)+P(B\mid A^C)P(A^C)$

Then

$P(A\mid B)=\dfrac{P(B\mid A)P(A)}{P(B\mid A)P(A)+P(B\mid A^C)P(A^C)}\approx0.0657$

(the first equality is Bayes' theorem)

b. We want to find $P(A^C\mid B^C)$ .

$P(A^C\mid B^C)=\dfrac{P(A^C\cap B^C)}{P(B^C)}=\dfrac{P(B^C\mid A^C)P(A^C)}{1-P(B)}\approx0.9984$

since $P(B^C\mid A^C)=1-P(B\mid A^C)$ .

4 0

3 years ago