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3 years ago

What is the slope of the line? What is the y-intercept? Write the equation of the line

Mathematics

2 answers:

ohaa [14]3 years ago

6 0

Answer:

slope is 2

y-intercept is 3

equation y=2x+3

Step-by-step explanation:

rjkz [21]3 years ago

5 0

Answer:

slope=4/2 or 2

y-intercept=3

equation=y=2x+3

the slope would be 4/2 because if you do the triangle method you see that the vertical distance of y is 4 and the horizontal distance of x is 2 so that gives you 4/2 the y intercept is where the line starts at 0 which you can see is 3. if the equation is y=mx+b you plug in the slope which is 4/2 or 2 and plug in the y-intercept which is 3 which gives you y=2x+3

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Please check my answers. Thanks

vaieri [72.5K]

1) should be second option

CD→

2) None of these

5 0

3 years ago

Find the value of x.

kherson [118]

Answer:

46degrees

Step-by-step explanation:

Find the value of x.

Using the circle theorem which states that

The angle at the vertex is half the difference that at the intercepted arcccs

x = 1/2(152 - 60)

x = 1/2 (92)

x = 92/2

x = 46degrees

Hence the value of x is 46degrees

6 0

3 years ago

The probability that it rains in London on any particular day is 0.3.

kirill [66]

Answer:

Day 1=0.075

Day 2=0.0375

Step-by-step explanation:

Divide each day by 2

4 0

3 years ago

Read 2 more answers

A surgical technique is performed on seven patients. You are told there is a 70% chance of success. Use a table to find the prob

kiruha [24]

Answer:

31.77% probability the surgery is successful for exactly five patients.

Step-by-step explanation:

For each patient, there are only two possible outcomes. Either the surgery is successful, or it is not. The probability of the surgery being successful for a patient is independent of other patients. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

A surgical technique is performed on seven patients.

This means that $n = 7$

You are told there is a 70% chance of success.

This means that $p = 0.7$

Find the probability the surgery is successful for exactly five patients.

This is P(X = 5).

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 5) = C_{7,5}.(0.7)^{5}.(0.3)^{2} = 0.3177$

31.77% probability the surgery is successful for exactly five patients.

5 0

3 years ago

Which of the following pairs of functions are inverse of each other ?

pshichka [43]

One way is to solve for the invers of the first function
remembe, to solve, replace f(x) or g(x) with y, switch x and y, solve for y and replace it with f⁻¹(x)

A.
f(x)=x/2+8
y=x/2+8
x=y/2+8
x-8=y/2
2x-16=y
f⁻¹(x)=2x-16
nope, not A

B.
f(x)=3x³+16
y=3x³+16
x=3y³+16
x-16=3y³
(x-16)/3=y³
∛((x-16)/3)=y
f⁻¹(x)=∛((x-16)/3)
nope, not the same
not B

C.
f(x)=18/x-9
y=18/x-9
x=18/y-9
x+9=18/y
y(x+9)=18
y=18/(x+9)
f⁻¹(x)=18/(x+9)
correct, the answer is C

answer is C

5 0

3 years ago

Read 2 more answers