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labwork [276]
3 years ago
9

-9–81 positive or negative ?

Mathematics
1 answer:
umka2103 [35]3 years ago
7 0

Answer:

it is positive because

Step-by-step explanation:

-9-81

minus minus = plus

so the given result from it will be 100

therefore, its positive hope this helps

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What is the decimal expansion of 7/2
valentina_108 [34]

Answer:

0.583

Step-by-step explanation:

you just divide ig

5 0
3 years ago
Read 2 more answers
Which of the following is not part of the Triangle Proportionality Theorem?
natka813 [3]

Answer:

A. AA Similarity Theorem  . True

B. Two sides divided proportionally. True

C. A parallel line to one side of a triangle.  True

D. A perpendicular line to one side of a triangle. False

Step-by-step explanation:

The Triangle Proportionality Theorem says that if a line is parallel to one side of a triangle, then it splits the other two sides into proportional sections.

Now, here the given statements are:

<u>A. AA Similarity Theorem </u>

TRUE, as the angles opposite to equal sides are equal.

And if lines are divided proportionally, both the triangles are Similar by AA similarity theorem.

<u>B. Two sides divided proportionally. </u>

TRUE,as the other two sides of the triangle are divided proportionally by the parallel line.

<u>C. A parallel line to one side of a triangle. </u>

TRUE, as the parallel line divides the other two  non- parallel sides in equal proportions.

<u>D. A perpendicular line to one side of a triangle.</u>

FALSE, this part is not required anywhere in the given theorem result.

3 0
3 years ago
3/4 times 2 equals what
Tamiku [17]
(3/4)*2=(3*2)/4=6/4=3/2
4 0
3 years ago
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What is the image of the point (2, -3) after a rotation of 180° counterclockwise
horsena [70]

Answer:

(-2, 3)

Step-by-step explanation:

  • <em>When rotating a point 180 degrees counterclockwise about the origin our point A(x,y) becomes A'(-x,-y). So all we do is make both x and y negative</em>

<u>Point (2, -3) becomes:</u>

  • Point (-2, 3)
5 0
4 years ago
2x²-2x-5=0<br><br> solve it using Δ=b²-4ac
Murljashka [212]

Answer:

44

Step-by-step explanation:

2x² - 2x - 5 = 0 is written in standard form ax^2 + bx + c = 0.

By looking at the formula, we can see that;

a = 2

b = -2

c = -5

Now, we can substitute these variables into the equation we are given and solve.

= b² - 4ac

= -2^2 - 4(2)(-5)

= 4 - 4(-10)

= 4 - (-40)

= 4 + 40

= 44

Best of Luck!

6 0
4 years ago
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