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Korvikt [17]
3 years ago
12

- 45 + 9 find the sum

Mathematics
1 answer:
olganol [36]3 years ago
8 0

Answer:

-36

Step-by-step explanation:

Hope this helps!!!

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Without solving an equation how can you determine if the equation has one solution?
amid [387]

Answer:

Yes. If it has one variable and not exponential the solution is 1.

If is one variable and to power of 2 it is quadratic and two solutions.

If it two variable with no power it is simultaneous and with 2 solutions. E.t.c

Step-by-step explanation:

7 0
4 years ago
Michael cuts a piece of wood for a project. The first cut is shown and can be represented by the equation . The second cut needs
Verdich [7]
Short Answer: A
Remark

The second cut is going to have the same slope as the original line. The lines are parallel.

Step One
You need to find the slope. That is the main part of this problem. You can pick any 2 points on the graph to do that.

<em>Point one</em> 
(- 11, 10) That point is on the upper left of the line

<em>Point Two</em>
The y intercept is a handy point in this question. It is right on the y axis. Each square counts as 2, so it is at (0,6)

<em>Formula</em>
slope = m = (y2 - y1) / (x2 - x1)

<em>Givens</em>
y2 = 10
y1 = 6
x2 = -12    Each square counts as 2 in the x direction.
x1 = 0

<u>Substitute and solve.</u>
m = (10 - 6) / (-12 - 0)
m = 4/ - 12
m = - 1/3

Step Two
Find the y intercept of the new line using the given point. 

So far what we have is  
y = (-1/3)x + b
The point used for the second line is (0,-2)
-2 = (-1/3)*0 + b 
b = - 2

Answer
The second line is
y = (-1/3)x - 2

8 0
4 years ago
I need help with #5!! the sum is 4.5 but i don’t know a, y, <br> B, or d. PLZ ANSWERRR.
fredd [130]

Answer:

A is -4, 6

Y is 4, 5

B is 7, -1

D is -8, -1

6 0
3 years ago
A bag contains 4 red balls, 2 green balls, 3 yellow balls, and 5 blue balls. Find each probability of randomly removing balls wi
zzz [600]
Altogether balls 4+2+3+5=14
P(red)=4/14=2/7
P(green)=2/14
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because it goes with replacement these probabilities are constant
6 0
4 years ago
In a college math class of 50 students, 23 are boys and 27 are girls. On the final exam, 15 boys and 14 girls made an A. What is
GenaCL600 [577]

boy or an A student is

29 made an A + 8 boys who did not make an A

37 who made an A and/or who is a boy

37/50


3 0
3 years ago
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