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Dmitry_Shevchenko [17]
3 years ago
15

What is the value of x?

Mathematics
2 answers:
Zolol [24]3 years ago
6 0
The answer is 180° hope I helped
kogti [31]3 years ago
4 0
The sum of triangle is 180 degrees. so x should be 5.

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Estimate the quotients 3.53/51 =
ale4655 [162]
An accurate estimate is anywhere from 0.06 to 0.07. The exact answer is 0.06921568627.
3 0
3 years ago
Phythagoras was born about 582bc.issac Newton was born in 1643 ad .how many years apart were they born
tigry1 [53]

Answer:

2,225

Step-by-step explanation:

You have to imagine it as a number line, with Christs death for 0.  582 years in the other direction, towards the positives, gives you 582. Plus the 1,643 years, and you have to solve 582 + 1,643

4 0
3 years ago
Someone Please Help Me On This
luda_lava [24]
1) 18
2) 4
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8 0
2 years ago
Is the Y value of the vertex of 4x squared plus 8X minus 8. help meee​
SIZIF [17.4K]

Answer:

y = -12

Step-by-step explanation:

You first calculate the x coordinate using the equation x = \frac{-b}{2a}, which in this case is \frac{-8}{8} = -1.

Then plug that x value into the equation to get the y coordinate:

4(-1)²+8(-1)-8 = -12

8 0
3 years ago
A spinner for a board game consists of a cardboard circle with two plastic arrows anchored to its center. The arrows are congrue
tekilochka [14]

Answer:

Option (c) is correct.

The approximate total area of the plastic triangles on the spinner is 2 × 3.9 square centimeters = 7.7 square centimeters


Step-by-step explanation:

Given:A spinner for a board game consists of a cardboard circle with two plastic arrows anchored to its center. The arrows are congruent isosceles triangles connected at their bases.

also,  Given: The base of each triangle measures 2 centimeters and the perimeter of each triangle is 10 centimeters.

We have to find the approximate total area of the plastic triangles on the spinner.

Perimeter of triangle is the sum of sides.

Since given the triangle to be isosceles .

Let the two equal side be x cm, then,

Perimeter of given triangle = 1 0

⇒ x  + x + 2 = 1 0

⇒ 2x = 8

⇒ x = 4

Thus, side of triangle is 4 cm.

Now we find the area of  isosceles triangle.

We first find the height, using Pythagoras theorem,

(AC)^2=(AD)^2+(DC)^2

Putting values, we get,

(4)^2=(AD)^2+(1)^2

Solving we get,

AD=3.87

Thus, area of one isosceles triangle  A=\frac{1}{2} bh

area of one isosceles triangle  A=\frac{1}{2} \times 2 \times 3.87

On solving we get,

Approximate area of one plastic triangles on the spinner is 3.9 square centimeters.

Thus, the approximate total area of the plastic triangles on the spinner is 2 × 3.9 square centimeters = 7.7 square centimeters

Option (c) is correct.




7 0
3 years ago
Read 2 more answers
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