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Fantom [35]
3 years ago
8

Pls help w these thx <33

Mathematics
1 answer:
stepladder [879]3 years ago
7 0

Answer:

36.81233927

13.02532494

Step-by-step explanation:

You need to use the law of sine for both of them

the law of sine is as follows:

\frac{a}{\sin(A)}=\frac{b}{\sin(B)}=\frac{c}{\sin(C)}

Question 1:

\frac{15}{\sin(64)}=\frac{10}{\sin(y)}\\y=36.81233927

Question 2:

Let x= AB

Start by solving for the missing angle, 53

\frac{8.4}{\sin(31)}=\frac{x}{\sin(53)}

x= 13.02532494

I will leave you to round the answers

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Find the inverse of f(x)=2/5x-2
Lunna [17]

Answer:

2/5x+2/5

Step-by-step explanation:

7 0
3 years ago
Order the data set from least to greatest: 8,4,6,6, 8, 2, 6,5
velikii [3]

Answer:

(least) 2,4,5,6,6,6,8,8 (greatest)

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Pleaseeeee helpppppp
lakkis [162]

Answer:

Okay so I’m gonna do a few and list a few examples

In slope intercept form its

y=mx+b

Y= Random Y coordinate (Not that important for now while writing)

m= Slope

X= random x coordinate (not that important for now while writing)

b= Y intercept

SO basically plug it in like that so for the first one

the slope is 1/3  and y-intercept is -1

so

y=1/3x-1

And thats how you do it

leave the y and x

Graphing

So for graphing or fining the equation, first identify the y-intercept

The y-intercept is on the y axis (obviously), and its the number where the line first hits, so for the first one, the y intercept is 3 becuase thats where the first line meets on the Y axis. When identified start doing rise over run, lik just go up and right, if there is no space, dot he opposite, go down and go left or right (depends if the line is rising or falling, you can tell if rising (positive) if the line goes from down to up form left to right , if falling (negative) vice versa, up to down from left to right). And just write the equation after identifying the slope And y-intercept, the x and y don’t matter.

4) y= -1/3x+3 (watch your signs, if falling the slope is automatically negative)

5) y=1/2x+1

6) y=4x-5 (negative y-intercept due to the part where the y meets up with the line, its in the negative side)

(remember to write these equations on the top side of the line

4 0
3 years ago
How would I start to solve number 15? Would I use distributive property?
natita [175]
-5-x=2x-(4x+6)

Using the distributive property is the correct first step. (4x+6) is being multiplied by -1, so distributing gives

-5-x=2x+(-4x-6)
-5-x=2x+((-4x)+(-6))

Now, using the associative property of addition, you get

-5-x=(2x+(-4x))+(-6)
-5-x=(2x-4x)-6

Simplify the right hand side:

-5-x=-2x-6

Add 5 and 2x to both sides.

(2x+5)-5-x=(2x+5)-2x-6

On the left side, use the associative property. On the right, commutativity and associativity:

2x+(5-5)-x=5+(2x-2x)-6

Simplify.

2x-x=-1
x=-1
8 0
3 years ago
a group of students attend a math club half the students are boys and 4/9 of the boys have brown eyes what fraction of the group
enyata [817]
From the whole group half the club are boys. 
fraction of boys from the whole class = 1/2
from this fraction, 4/9th of the boys have brown eyes
therefore fraction of boys who have brown eyes 
= 4/9 of 1/2
the 'of' function is used to multiply 
\frac{4}{9} *  \frac{1}{2}
when multiplying fractions numerators are multiplied by numerators and denominators multiplied by denominators
\frac{4*1}{9*2} =  \frac{4}{18}
4/18 can be simplified by dividing the whole number by a common number
4/18 divided by 2 = 2/9
the answer is 2/9
2/9 of the club are boys with brown eyes


3 0
3 years ago
Read 2 more answers
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