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dusya [7]
2 years ago
10

Perform the operation, Enter your answer in scientific notation. 7 x 10² – 5.5 x 10²

Mathematics
2 answers:
PtichkaEL [24]2 years ago
8 0
The answer to your question is 150!
Elenna [48]2 years ago
3 0

Answer:

150 or 15^1

Step-by-step explanation:

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How do i find x and y?​
Stells [14]

Answer:

x=90

y=67

Step-by-step explanation:

as the line that bisects the vertical angle of isosceles triangle perpendicularly bisects the base

so x=90

and sum of all sides of triangle is 180 so

90+23+y=180

therefore,y=67

6 0
3 years ago
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The kindergarten class has 10 girls and 10 boys. If two students are chosen at random to be in the school play, what is the prob
Akimi4 [234]
50% because there's equal value of both variables
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3 years ago
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How to solve this question? Please help me
Maurinko [17]

Answer:

≈ 82 feet

Step-by-step explanation:

Since the triangle is right use Pythagoras' identity to calculate distance (d)

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.

Here the hypotenuse is the distance (d) between the 2 poles, hence

d² = 80² + 45² = 6400 + 2025 = 8425 ( take the square root of both sides )

d = \sqrt{8425} ≈ 82 feet ( to the nearest foot )

8 0
3 years ago
Prove that the following four points will form a rectangle when connected in order
Lemur [1.5K]

Answer:

Step-by-step explanation:

If the diagonals of the rectangle are congruent,

AC = BD

By using formula to calculate the distance between two points,

Distance between two points = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Distance between A(0, -3) and C(2, 8),

AC = \sqrt{(8+3)^2+(2-0)^2}

     = \sqrt{125}

     = 5\sqrt{5}

Similarly, distance between two points B(-4, 0) and D(6, 5),

BD = \sqrt{(5-0)^2+(6+4)^2}

     = \sqrt{125}

     = 5\sqrt{5}

Therefore, both the diagonals are congruent.

Hence, given quadrilateral ABCD is a rectangle.

8 0
3 years ago
A figure with length and width, but no depth, is called _ _ _-dimensional.
k0ka [10]

Answer: The term is called Two dimensional.

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