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Fantom [35]
3 years ago
11

‍♀️always have problems with these

Mathematics
2 answers:
inysia [295]3 years ago
5 0
I hope that my hand writing is clear.

Lana71 [14]3 years ago
4 0

y=mx+b\\\\m=\dfrac{y_2-y_1}{x_2-x_1}

We have:

(1,\ 5)\to x_1=1,\ y_1=5\\(2,\ 2)\to x_2=2,\ y_2=2

Susbstitute:

m=\dfrac{2-5}{2-1}=\dfrac{-3}{1}=-3

y=-3x+b

Susbtitute the coordinates of the point (2, 2) to the equation:

2=(-3)(2)+b\\\\2=-6+b\ \ \ \ |+6\\\\b=8

<h2>Answer: y = -3x + 8</h2>
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Someone please help me with #2
mario62 [17]

<em>Good luck, you'll need it :)</em>

6 0
3 years ago
PLEASE I NEED HELP! I want to understand this question.
jasenka [17]

Answer:

TP = 5. greater than

Step-by-step explanation:

1. Out of the 4 options, HH, HT, TH, TT, there is one option we want (HT) which is one our of the four options. that means that the theoretical probability is 1/4 = 25%. Since there were 20 flips, the theoretical probability is 25% of 20 which is 5.

2. For experimental probability, its what actually happenned. Out of the 20 flips, 6 were HT so comapared to the Theoretical probability, the experimental probability was higher.

7 0
2 years ago
Kevin has $24 to buy a gift for his cousin he found a gift for $22 with a 5% sales tax added on will Kevin have enough money to
STatiana [176]

Kevin will have enough. He will need to pay $23.10.

5% of $22 is $1.10.

22+1.10=23.10

23.10 is less than 24

6 0
3 years ago
Is it necessary to have a common denominator when you multiply two fractions? Explain.
Softa [21]

It is not necessary to have a common denominator when you multiply two fractions

<h3>How to determine the true statement?</h3>

The statement is about the relationship between the denominator of fractions when they are multiplied

Take for instance, we have the following fractions

a/b and x/y

In the above fractions, we have

Numerator = a and x

Denominator = b and y

Where b and y do not have the same value

When they are multiplied, we have

Product  = ax/by

The denominators do not have the same value

And we were able to calculate the product

This means that the fraction denominator do not have to be common

Read more about fractions at

brainly.com/question/1622425

#SPJ1

7 0
1 year ago
Here is a system of linear equations: y = 3x + 4 y = 3x - 7 How many solutions, if any, does this system have?
marysya [2.9K]

Answer:

Step-by-step explanation:

y = 3*x  + 4

y = 3*x -   7

Each one of the above equations is the equation for a straight line.

The solution for such a system is the point P ( x₀ , y₀ ) which coordinates belong to both straight lines. According to this, there is only one solution for that system ( only one point of intersection). The intersection of a pair of straight lines either can occur or not depending on the slope of the lines, if they have the same slope they are parallel, then they did not touch each other ever. How can m,  be identified in the straight line equation??,   just by looking at the coefficient of x.  

The two equations have slope 3 they are parallel then there is not a solution ( there is not a common point to both equations)

7 0
2 years ago
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