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kkurt [141]
3 years ago
8

If a polygon has four right angles, then it is either a square or a rectangle.

Mathematics
1 answer:
morpeh [17]3 years ago
5 0
B. A polygon is either a square or a rectangle
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The diameter of a circle is 18m. Eugene claims that the circumstances of the circle is 113.04m. What is the circumference of the
pogonyaev

Answer:

The circumference is 56.52 m

Step-by-step explanation:

Eugene likely made the mistake of doubling the diameter thinking that it was the radius which gave the answer double the actual one. The equation for finding a circumference is C=\piD where d is equal to the diameter and c is the circumference. All you do is multiply 18 and 3.14 to get your answer.

4 0
3 years ago
Find the roots of the parabola given by the following equation <br> 2x^2+5X-9=2x
natta225 [31]

Answer:

x=-3\:or\:x=\frac{3}{2}

Step-by-step explanation:

The given parabola has equation

2x^2+5x-9=2x

We rewrite in standard form to obtain:

2x^2+5x-2x-9=0

2x^2+3x-9=0

Split the middle terms to get:

2x^2+6x-3x-9=0

Factor by grouping:

2x(x+3)-3(x+3)=0

(x+3)(2x-3)=0

x=-3\:or\:x=\frac{3}{2}

7 0
3 years ago
Can someone help me with this question please?
gladu [14]
X-intercept is (1.2,0)
y-intercept is (0,-1.5)
4 0
3 years ago
PLEASE ANSWER ASAP!!!!!!!!
elena-s [515]

The missing side and angles are 16.8 , 23.33 degree and 123.7 degree respectively.

<h3>What is a Triangle ?</h3>

Triangle is a polygon with three sides , three angles and three vertices.

Given is triangle ABC , with sides  a = 8, c = 11, and m∠C=33 degree

The missing angle and side is given by Cosine rule of triangle

c² = a² + b² - 2ab cosC

11² = 8² + b²  - 2* 8 * b * cos 33

57 = b² -13.42 b

b²  -13.42b -57 = 0

b = 16.8

By sine rule

a / sin A = b/sin B = c/sinC

8 / sin A = 11 / sin 33

A = 23.33 degree

Similarly

B = 123.7 degree

Therefore the missing side and angles are 16.8 , 23.33 degree and 123.7 degree respectively.

To know more about Triangle

brainly.com/question/2773823

#SPJ1

6 0
2 years ago
Write the equation of a line with y-intercept of 5 and a slope of 3 forths.
STALIN [3.7K]
Isnt it y= 3/4 + 5....
4 0
3 years ago
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