3 years ago

Show that parallelogram with its diagonals intersecting at 90° is rhombus.

Mathematics

1 answer:

34kurt3 years ago

8 0

I do not have an answer for that, but you should try looking for that on google or yahoo answers.

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Mrs. Benson has graded 46 math assignments but has 80% of the assignments left to grade. Mrs. Benson has how many math assignmen

timofeeve [1]

Mrs. Benson has 184 math assignments left to grade.

<u>Step-by-step explanation:</u>

Here we have , Mrs. Benson has graded 46 math assignments but has 80% of the assignments left to grade.We need to find Mrs. Benson has how many math assignments left to grade. Let's find out:

Let total Number of math assignments be x , So According to question 46 math assignments are graded & 80% are left i.e.

⇒ $x = 46+\frac{80x}{100}$

⇒ $x -\frac{80x}{100}= 46$

⇒ $\frac{100x-80x}{100}= 46$

⇒ $\frac{20x}{100}= 46$

⇒ $\frac{x}{5}= 46$

⇒ $x=230$

Now , Assignments left to grade is :

⇒ $230-46$

⇒ $184$

Therefore , Mrs. Benson has 184 math assignments left to grade.

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3 years ago

Complete factorization for -20x - 5y

marusya05 [52]

Answer:

-5 (4x+y)

Step-by-step explanation:

Factor out -5, and -20/-5=4, -5/-5=1.

7 0

3 years ago

What is the factored form of r^27 - s^30

svlad2 [7]

Answer:

(r^9-s^10) (r^18+r^9 s^10 + s^20)

Step-by-step explanation:

hope this helps :)

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3 years ago

Graph the equation f(x)=-10x^2

Zepler [3.9K]

The graph which you seek is attached to this answer.

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3 years ago

The length if the base of an isosceles triangle is 2x. The length of the leg is 6x-20. The perimeter of the triangle is 240. Fin

Natali5045456 [20]

Answer:

x is about 14.2857

Step-by-step explanation:

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3 years ago