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3241004551 [841]
2 years ago
11

2- Marcela deseja comemorar seu aniversário com uma festa e para isso pesquisou preços de duas empresas especializadas. A empres

a "Feliz Aniversário" cobra uma taxa fixa de R$ 200,00 e mais R$ 20,00 por convidado, enquanto a empresa "Parabéns a Você" cobra uma taxa fixa de R$ 100,00 e R$ 25,00 por convidado. Para que os preços oferecidos pela empresa "Feliz Aniversário" sejam mais vantajosos para Marcela, o número de convidados para sua festa de ser
a) maior que 20
b) menor que 20
c) menor ou igual a 20
d) maior ou igual a 20​
Mathematics
1 answer:
anygoal [31]2 years ago
4 0
Mdmdmdmksksksksksmsksksms
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A trapezoid has an area of 13.5 square inches. If the bases are 3 and 6 inches what is the height?
liraira [26]
Well the formula is : b1+b2/2 (h)

so the height would be solved as : 
13.5 = 3+6/2 (h)
13.5 = 9/2 (h)
h = (13.5)/(9/2)
h = (13.5) x (2/9)  *reciprocal*
h = (27) / (9)
h = 3


5 0
3 years ago
Given: ABCD is a ∥-gram, BF ⊥ CD , BE ⊥ AD, Prove: △ABE∼△CBF
drek231 [11]

Answer:

Hence proved △ABE∼△CBF.

Step-by-step explanation:

Given,

ABCD is a parallelogram.

BF ⊥ CD    and

BE ⊥ AD

To Prove : △ABE∼△CBF

We have drawn the diagram for your reference.

Proof:

Since ABCD is a parallelogram,

So according to the property of parallelogram opposite angles are equal in measure.

\therefore m\angle A = m\angle B ⇒1

And given that BF ⊥ CD and BE ⊥ AD.

So we can say that;

m\angle F=m\angle E=90\° ⇒2

Now In △ABE and △CBF

∠A = ∠C   (from 1)

∠E = ∠F    (from 2)

So by A.A. similarity postulate;

△ABE∼△CBF

7 0
3 years ago
Solve for z.<br> 11z + 2z = -13
Ronch [10]

Answer:

z = -1

Step-by-step explanation:

add like terms: 13z = -13

divide both sides by 13: z = -1

3 0
2 years ago
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<em>A ratio camparing two quantities with different kinds of units is a ratio that tells the rate of change of one variable with a change in other variable.</em>
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Two-order systems may be solved by subtraction. True False
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This is True

answered false got it wrong

6 0
3 years ago
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