All categories

3 years ago

Which equation is a point slope form equation for line AB ?

Mathematics

1 answer:

poizon [28]3 years ago

6 0

The correct answer is y + 2 = -2(x-5).

Original Equation: y = -2x + 8

Test Option B:

y + 2 = -2(x-5)

y + 2 = -2x + 10
- 2 - 2
-----------------------------
y = -2x + 8

You might be interested in

Help<br>ques starts frm a rectangular garden

yuradex [85]

Answer:

this is the full solution of your question

8 0

3 years ago

If each pretzels weighed a half an ounce, how many pretzels would fit in a 16 ounce bag

Murrr4er [49]

To find out we should, divide the whole weight to weight of each pretzels.

The whole is 16 ounce and each pretzel is $\frac { 1 }{ 2 }$ ounces. So let's divide :

$\frac { 16 }{ \frac { 1 }{ 2 } } \\ \\ We\quad can\quad rewrite\quad \\ this\quad expression\quad as\quad :\\ 16\cdot \frac { 2 }{ 1 } \\ and\quad that\quad is\quad equal\quad to\\ 16\cdot 2=32\\ \\ \\$

When you divide a number by a fraction, you can flip the fraction upside down and multiply it with the number, the result will be same.

4 0

4 years ago

Read 2 more answers

Add 0.0025 kg, 1750 mg, 2.25 g, and 825,000 μg, and express the answer in grams.

Bogdan [553]

Answer:

6.75g

Step-by-step explanation:

The first step is converting everything to grams, by rules of three. Then we add.

In a rule of three problem, the first step is identifying the measures and how they are related, if their relationship is direct of inverse.

When the relationship between the measures is direct, as the value of one measure increases, the value of the other measure is going to increase too.

When the relationship between the measures is inverse, as the value of one measure increases, the value of the other measure will decrease.

Unit conversion problems, like this one, is an example of a direct relationship between measures.

First step: 0.0025kg to g

Each kg has 1000g, so:

1kg - 1000g

0.0025kg - xg

x = 1000*0.0025 = 2.5g

0.0025kg = 2.5g

Second step: 1750 mg

Each g has 1000mg, so:

1g - 1000mg

xg - 1750mg

1000x = 1750

$x = \frac{1750}{1000}$

x = 1.75g

1750 mg = 1.75g

2.25g - OK

Third step: 825,000 μg to g

Each g has 1,000,000 ug, so:

1g - 1,000,000 ug

xg - 825,000 ug

1,000,000x = 825,000

$x = \frac{825,000}{1,000,000}$

x = 0.25g

825,000 μg = 0.25g

Final step: adding everyting

0.25g + 2.25g + 1.75g + 2.50g = 6.75g

8 0

3 years ago

R(x)=f(x)−g(x), where f(x)=x+1/x+3 and g(x)=x+17/x^2−x−12.

aliya0001 [1]

Answer:

$\frac{x^2-4x-21}{(x+3)(x-4)}$

Step-by-step explanation:

R(x)=( $\frac{x+1}{x+3}$ )-( $\frac{x+17}{x^(2)-x-12}$ )

R(x)=( $\frac{x+1}{x+3}$ )-( $\frac{x+17}{(x+3)(x-4)}$ )

R(x)= $\frac{(x+1)(x-4)}{(x+3)(x-4)}$ - $\frac{x+17}{(x+3)(x-4)}$

R(x)= $\frac{x^2-3x-4-x-17}{(x+3)(x-4)}$

R(x)= $\frac{x^2-4x-21}{(x+3)(x-4)}$

8 0

3 years ago

P(ANB) =3/10

Free_Kalibri [48]

Answer:

$\frac{3}{4}$

Step-by-step explanation:

This is a question from conditional probability.

We are given:

$P(A \cap B) = \frac{3}{10}$

$P(B)=\frac{2}{5}$

And, we need to find P(A | B)

According to the formula of conditional probability:

$P(A|B)=\frac{P(A \cap B)}{P(B)}$

Using the values, we get:

$P(A|B)=\frac{\frac{3}{10} }{\frac{2}{5} }\\\\P(A|B)=\frac{3}{4}$

Thus, the probability of occurrence of event A given that event B has already occurred is $\frac{3}{4}$

5 0

3 years ago