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3 years ago

I really need help with these questions !!!! Plzzz! 2-4

Mathematics

2 answers:

tresset_1 [31]3 years ago

6 0

The picture I sent is how to do #2

Igoryamba3 years ago

4 0

4) Triangle DMC is Isosceles because only two of its sides are equal and the other is not which is the bottom one therefore it makes it isosceles and not equilateral because not all of it’s sides are equal

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Which expression can be simplified as

DedPeter [7]

Answer:

4th is correct answer. 1, 2, 3 not correct you can check the exponents properties

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3 years ago

The number of seats in a row has been increased at a rectangular-shape movie theater after renovation so that it is now five mor

Damm [24]

Let the number of rows be = r

Let the number of seats per row be = s

we know that the number of seats is 126.

So, $s\times r=126$ ..... (1)

As given, there are five more seats per row than the number of rows, so we can say that:

$s=r+5$

Putting this in equation (1)

$(r+5)*r=126$

$r^{2}+5r=126$

$r^{2}+5r-126=0$

$r^{2}+14r-9r-126=0$

$(r+14)(r-9)=0$

r=-14 and r=9 (neglecting the negative value) we get r=9

And s=r+5

so, s =9+5=14

Hence, there are 5 rows and 14 seats per row.

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3 years ago

7, 4, 8, 3 the target number is 26

Neporo4naja [7]

Answer:

What is the question? Can you show more info or show anything they gave you?

Step-by-step explanation:

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3 years ago

Can someone help me? It’s Geometry !

Alenkinab [10]

Answer:

answer is 175

Step-by-step explanation:

i solved it by similarity in triangle small triangle and big triangle are similar to each other.

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3 years ago

Help picture below problem 13

Hitman42 [59]

Answer:

it's obtuse angle...

mark me brainliest

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2 years ago