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zlopas [31]
4 years ago
14

How do you do this geometry problem? Answer ASAP please!

Mathematics
1 answer:
o-na [289]4 years ago
4 0
I am currently doing this right now, make them equal each other, then follow what i do:
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Administrators at a local high school are organizing desks in the cafeteria for the junior students to use while taking a practi
ICE Princess25 [194]

Answer:

correct choice is B

Step-by-step explanation:

If d represents the number of desks in each row and the administrators want there to be 13 less rows than the number d of desks in each row, then the number of rows is d-13.

The total number of desks in all rows is

d\cdot (d-13)=d^2-13d.

Due to space limitations, there should be fewer than 264 students in the cafeteria. Therefore,

d^2-13d

8 0
3 years ago
Prove that opposite sides of a parallelogram are congruent. Be sure to create and name the appropriate geometric figures. (10 po
iren2701 [21]

Answer:

Theorem : Opposite sides of a parallelogram are congruent or equal.

Let us suppose a parallelogram ABCD.  

Given: and  (According to the definition of parallelogram)

We have to prove that: AB is congruent to CD and BC is congruent to AD.

Prove: let us take two triangles,  and

In these two triangles,  { By the definition of alternative interior angles}

Similarly,                        

And,                                AC=AC (common segment)

By  ASA,  

thus By the property of congruent triangle, we can say that corresponding  sides of  are also congruent.

Thus, AB is congruent to CD and BC is congruent to AD.

Step-by-step explanation:

5 0
3 years ago
The variable r is directly proportional to the square of t, and r = 144 when t = 72.
Paul [167]

Answer:

k=0.023

Step-by-step explanation:

r \alpha  {t }^{2}  \\ r = k {t}^{2}  \\ 144 = k \times  {72 }^{2}  \\ k =   \frac{144}{ {72 }^{2} }   \\ k = 0.023 \\ the \: eqn \: is \: therefore \\ r = 0.023 \times  {t}^{2}

4 0
3 years ago
Choose the correct problem for the fraction 7/8. A 7x8, B 7/10, C 7/8, D 8/7. Fractions as division
Lera25 [3.4K]

i think its answer is 7/8

3 0
3 years ago
Please help! <br><br> 21 is 30% of what number?<br><br> Enter your answer in the box.
Fiesta28 [93]
I think the answer is 70
8 0
3 years ago
Read 2 more answers
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