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Ugo [173]
2 years ago
6

What would happen if you subtracted a negative ? example 4-(-5)

Mathematics
2 answers:
harkovskaia [24]2 years ago
8 0
Then the two negatives would combine to create a positive.

Yuri [45]2 years ago
5 0
It would turn positive so it would be:

4 + 5 
Answer is 9

Hope this helps!
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When given the coordinates of the vertices of a triangle, can the slope formula be used to determine whether the triangle is a r
Ksju [112]
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8 0
2 years ago
I need help fast please I don’t understand this and I’ve been struggling for a while. Can I get a brain list please or a tutor t
solong [7]

Answer:

4 √6

Step-by-step explanation:

We have a few right triangles. We know that a²+b²=c², with c being the side opposite the right angle. Representing the side without a value as z, we have:

m²+z² = (8+4)² = 12²

4²+n²=z²

8²+n²=m²

We have 3 equations with 3 unknown variables, so this should be solvable. One way to find a solution is to put everything in terms of m and go from there. First, we can take n out of the equations entirely, removing one variable. We can do this by solving for it in terms of z and plugging that into the third equation, removing a variable as well as an equation.

4²+n²=z²

subtract 4²=16 from both sides

z²-16 = n²

plug that into the third equation

64 + z² - 16 = m²

48 + z² = m²

subtract 48 from both sides to solve for z²

z² = m² - 48

plug that into the first equation

m² + m² - 48 = 144

2m² - 48 = 144

add 48 to both sides to isolate the m² and its coefficient

192 = 2m²

divide both sides by 2 to isolate the m²

96 = m²

square root both sides to solve for m

√96 = m

we know that 96 = 16 * 6, and 16 = 4², so

m = √96 = √(4²*6) = 4 √6

5 0
2 years ago
Find the surface area of the composite figure.
zhuklara [117]

Answer:

438.97 cm²

Step-by-step explanation:

To find the surface area, we break up the figure into two pieces(blue and yellow) and then add them together.

SA = 2(w · l + h · l + h · w)

2 · (6 · 16 + 4 · 16 + 4 · 6)

368 cm²

70.97 cm² + 368 cm²

438.97 cm²

5 0
2 years ago
Please help i am really struggling
marysya [2.9K]

Answer:

greater than...

equal

Step-by-step explanation:

welcome

3 0
3 years ago
Use the elimination method to solve the system of equations.Choose the correct ordered pair. x+y=8 x-y=6
ratelena [41]

Answer:

Solution (7,1)

Step-by-step explanation:

Use the elimination method

x + y=8

x - y=6

--------------Add

2x = 14

 x = 7

Substitute x = 7 into x + y=8

7 + y=8

y = 8 - 7

y = 1

Solution (7,1)


3 0
3 years ago
Read 2 more answers
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