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kifflom [539]
3 years ago
6

What’s the answer?? Need Help Plz

Mathematics
1 answer:
qaws [65]3 years ago
6 0

Answer:

B. 52°

Step-by-step explanation:

You need to add both equations and set them equal to 90 degrees because the other side is 90 degrees and the entire line must equal 180.

So...

5x-22+4x+4=90\\

Combine like terms

5x+4x= 9x and -22+4= -18

So:

9x-18=90\\

Add 18 to both sides

9x=108\\

Divide 9 on each side to get X=12.

Then you must plug in the 12

(4(12)+4)\\(48+4)\\52

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Can anyone help me with my math homework! My teacher didn't even discuss it! I would appreciate it! Thank you!
Hatshy [7]
Please, in the future, post just one problem at a time.

Looking at Problem #1:  The line intersects the y-axis at (0,-3) and intersects the x-axis at (1,-1).  At least, this is what I see; your graph is small.
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The slope of that line is then  m = rise / run = ------------ = +2.
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                                       [change in y]
Slope = m = rise / run = --------------------
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8 0
3 years ago
What's 5.17÷186 ? The directions for the assignment that I was forced to do is above.
My name is Ann [436]
0.0277956989 I really hope this helps you out!
7 0
3 years ago
Determine whether the graph represents a function . If it does represent a function , give its domain and range.
laiz [17]

Answer:

A function is a relationship that maps elements from a set (the domain) into elements from another set (the range)

Such that each element in the domain can be mapped into only one element from the range.

Let's see graphs 18, 20,24 and 30.

Remember that the axis that represents the domain is the horizontal one (usually represented with x), and the vertical axis represents the range (usually represented with y)

18) Here we can see that the point x = 1 his mapped into two different values of y.

we have the pair (1, 2) and the pair (1, -3)

And something similar happens for x = 2.

Then we can conclude that this is not a function.

20) Here we have a linear relationship.

Linear relationships are almost always functions, the only case when these are not functions is when the linear equation is something like x = a.

Linear equations can be written as:

y = a*x + b

So x can be any value, and thus y also can be any value.

Then the domain is the set of all real numbers, and the range is the set of all real numbers.

24) Here we have a quadratic function whose arms go down.

This is a function, now let's see the domain and range.

Quadratic functions are written as:

y = a*x^2 + b*x + c

There is no value of x can cause some problem in this equation, then this function works for all values of x, then the domain is the set of all real numbers.

Now, let's look at the graph.

We can see that the function goes up, reaches a maximum, and then goes down again.

Then the range will be the set of all the values smaller than the maximum we can see in the graph, this is:

y ∈ (-∞, 15]

or simply:

y ≤ 15.

30) Here again, we can see that for x = 0 there are two different values of y.

the same happens for x = -1, x = -2, and a lot of other values.

Then this is not a function, because it is mapping values of the domain into different values of the range.

3 0
2 years ago
2 plez!!!?!?!?!?!?!?!?!??!!??!?!?!!??!?!?! I can’t figure it out I’ve tried everything it’s due tomorrow AHAHAHAH
harkovskaia [24]
So to do this one, you have to do the problem backwards!

The equation looks like this with everything plugged in:

272.2 = 2(3.14)r

You are looking for r, so start dividing

272.2 = 2(3.14)r
136.1 = (3.14)r
43.3 = r

Therefore the radius is about 43.3 in.

I hope I helped!
5 0
2 years ago
if one tray can hold 12 loaves of bread and eat your I can hold 10 trays can a hundred twenty-five Loaves fit on one rack
tia_tia [17]
I believe the wording of the question is: If one tray can hold 12 loaves of bread and the rack can hold 10 trays, can a hundred and twenty-five loaves fit on one rack? 
Then the answer would be, no. 
12 x 10 = 120

6 0
2 years ago
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