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3 years ago

What is the slope of the line khan academy

Mathematics

1 answer:

Dmitry [639]3 years ago

3 0

Answer:

The slope of a line would be your m in the equation. So, when you have your y=mx+b you would have the slop

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Help with this question, please!!

Sedaia [141]

Answer:

V = 135π in³
A = 105π in²

Step-by-step explanation:

Area of a circle is ...

A = πr² . . . r is the radius

Area of a sphere is ...

A = 4πr²

Lateral area of a cylinder is ...

A = πdh = 2πrh . . . h is the height

Volume of a cylinder is ...

V = πr²h

Volume of a sphere is ...

V = (4/3)πr³

___

The area of the composite figure is the sum of the areas ...

total area = base circle area + cylinder lateral area + 1/2 sphere area

= πr² + 2πrh + (1/2)4πr² = (πr)(r +2h +2r)

= πr(3r +2h)

For the given dimensions, r=3 in, h = 13 in, this is ...

total area = π(3 in)((3·3 +2·13) in) = 105π in²

___

The volume of the composite figure is the sum of the volumes ...

total volume = cylinder volume + 1/2 sphere volume

= πr²h + (1/2)(4/3)πr³ = πr²(h + 2/3r)

= π(3 in)²((13 +2/3·3) in) = 135π in³

4 0

4 years ago

How do you find equivalent ratios? HELP HELP HELP!!! I NEED THE ANSWERS ASAP!!!

Furkat [3]

Answer:

multiply or divide both quantities by the same number

Step-by-step explanation:

To find an equivalent ratio, multiply or divide both quantities by the same number. It is the same process as finding equivalent fractions

8 0

3 years ago

Read 2 more answers

(5m-4)/6 -1 = 4m - (3m+10)/2 pls answer fast

Debora [2.8K]

Answer:

Step-by-step explanation:

$\frac{(5m - 4)}{6} - 1 = 4m - \frac{(3m + 10)}{2}$

$= > \frac{5m - 4 - 6}{6} = \frac{8m - 3m - 10}{2}$

$= > \frac{5m - 10}{6} = \frac{5m - 10}{2}$

[Cross Multiplication]

=> 2(5m - 10) = 6(5m - 10)

=> 10m - 20 = 30m - 60

=> 60 - 20 = 30m - 10m

=> 40 = 20m

$= > m = \frac{40}{20}$

=> m = 2 (Ans)

3 0

3 years ago

Use the survey results to find the probability that a respondent has a pet, given that the respondent has had a pet.

Elena-2011 [213]

Answer:

Probability that the respondent has a pet given that the respondent has had a pet is $\frac{37}{81}$ or 0.46.

Step-by-step explanation:

We are given the following results below;

37% have a pet now and have had a pet.

63% do not have a pet now.

81% have had a pet.

19% do not have a pet now and have never had a pet.

Let event B = respondent has a pet now

Now, Probability that the respondent has had a pet = P(A) = 0.81

Probability that the respondent has a pet now and has had a pet = $P(A \bigcap B)$ = 0.37

So, Probability that the respondent has a pet given that the respondent has had a pet is given by = P(B/A)

This conditional probability is solved as ;

P(B/A) = $\frac{P(A \bigcap B)}{P(A)}$

= $\frac{0.37}{0.81}$ = 0.46.

3 0

4 years ago

wich form is more quickly to reveal the y intercept f(x)=3(x-6)^2-75 f(x)=3x^2+36x+33 f(x)=3(x+1)(x+11)

riadik2000 [5.3K]

Answer:

the 2nd option

Step-by-step explanation:

the second option is in standard form (y = ax^2 + bx + c), c gives us the y intercept

6 0

2 years ago