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4 years ago

What is the slope of the line joining (10, 9) and (40, 3)?

Mathematics

1 answer:

bija089 [108]4 years ago

6 0

I just learned this
9-3= 6
10-40= -30
so
6/-30= -1/5

So the answer is C

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Right now, Simran's father is three times as old as Simran. Five years ago, he was four times as

Illusion [34]

Hello,

Let's f the age of the father
s the age of Simran

f=3*s
f-5=4*(s-5)
==>3s-5=4s-20
==>s=15
f=3*15=45

3 0

4 years ago

Read 2 more answers

42 /48 in simplest form

zloy xaker [14]

First we need to find the GCF (greatest common factor)

Factors of 42 are:
1, 2, 3, 6, 7, 14, 21, 42

Factors of 48 are:
1, 2, 3, 4, 6, 8, 12, 16, 24, 48

GCF is 6

To simplify you divide numerator and denominator into the GCF

42 ÷ 6 = 7

48 ÷ 6 = 8

42/48 = 7/8

Hope this helps. :)

6 0

3 years ago

Harrison Water Sports has two retail outlets: Seattle and Portland. The Seattle store does 60 percent of the total sales in a ye

Anna11 [10]

Answer: P = 0.75

Step-by-step explanation:

Hi!

The sample space of this problems is the set of all the possible sales. It is divided in the disjoint sets:

$S_s = {\text{sales made in Seattle }}\\S_p={\text {sales made in Portland}}$

We have also the set of sales of boat accesories $S_b$ , the colored one in the image.

We are given the data:

$P(S_s) = 0.6\\P(S_b | S_s) = \frac{P(S_b\bigcap S_s)}{P(S_s)}=0.4\\P(S_b|S_p) =\frac{P(S_b\bigcap S_p)}{P(S_p)}=0.2$

From these relations you can compute the probabilities of the intersections colored in the image:

$pink\;set:\;P(S_b \bigcap S_s) =0.6*0.4=0.24\\blue\;set\;:P(S_b \bigcap S_p)=(1-0.6)*0.2 =0.08$

You are asked about the conditional probability:

$P(S_s|S_b) = \frac{P(S_s \bigcap S_b)}{P(S_b)}$

To calculate this, you need $P(S_b)$ . In the image you can see that the set $S_b$ is the union of the two disjoint pink and blue sets. Then:

$P(S_b)=P((S_b \bigcap S_s)\bigcup(S_b \bigcap S_p)) = 0.24 + 0.08 = 0.32$

Finally:

$P(S_s|S_b) = \frac{0.24}{0.32}=0.75$

4 0

4 years ago

If 1/2 is subtracted from four times the reciprocal of a number, the result is 0. Find the number.

Maurinko [17]

Answer:

The Number is 8.

Step-by-step explanation:

Let the number be x.

Given:

1/2 is subtracted from four times the reciprocal of a number, the result is 0.

Hence the equation will become like;

$4\times \frac{1}{x} - \frac{1}{2}=0$

Now Solving the equation we get.

$\frac{4}{x} -\frac{1}{2}=0\\\\\frac{4}{x} = \frac{1}{2}\\\\x= 4\times 2\\x=8$

Now the we can see the number is 8, when 1/2 is subtracted from 4 times the reciprocal of number means 4/8 which becomes 1/2 and hence when 1/2 is subtracted from 1/2 it equals to 0.

Hence the number is 8.

8 0

3 years ago

Help :D .......................

LUCKY_DIMON [66]

Answer:

The circunference is represented by the equation is $x^{2}+y^{2}-6\cdot x +4\cdot y +9=0$ .

The graph of this function is presented in the attachment.

Step-by-step explanation:

The general equation of the circunferece is defined by the following formula:

$x^{2}+y^{2}+A\cdot x + B\cdot y + C = 0$ (1)

We can determine the value of the coefficients by knowing three distinct points: $(x_{1}, y_{1}) = (3,0)$ , $(x_{2},y_{2}) = (5,-2)$ , $(x_{3},y_{3}) = (1, -2)$