Is a trapezoid always a polyhedron

Answers

Answer 1

Answer: No, a trapezoid is at least one pair of parallel sides.
A Polyhedron is a 3 dimensional shape with flat faces - Not all are parallel, therefore it is not always a trapezoid. :-)

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What is 5d=470 and what is 8a=47

Answers

5d=470:

in this case we have to divide both sides by 5:

d=94

8a=47:

in this case we have to divide both sides by 8:

a=5.875

as a general rule, if you want to find out a value of a in
ab=c

you have to divide both sides of the equation by b (if it's not zero); then you will have left:

a=c/b

and if you calculate c/b, this will give you the answer

$5d= 470 \n \n d=470:5 \n \n \boxed{\boxed{d= 94}} \n \n 8a=47 \n \n a=47:8 \n \n \boxed{\boxed{a=5.875}}$

after 6 years an account that earns 5% simple intrest has earned $480 in intrest. How much is the initial deposit?

Answers

plug in your values into

I = PRT

480 = P(.04)(6)

solve for P

check your answer by finding the interest.

A rectangle with dimensions of 3 units by 5 units is enlarged by a scale factor of 1.4 By what percent does its area increase?

Answers

$A_1=3*5=15\n 3.5*1.4=4.9\n 5*1.4=7\n A_2=4.9*7=34.3\n (34.3)/(15)*100\%=228.(6)\%\n 228.(6)\%-100\%=128.(6)\%$

Answer:

128.(6)%

i think this is the ans

Can some one help me? Please!

Answers

$(1)/(3)(n+3)=6\nn+3=18\nn=15 \Rightarrow C$

$(1)/(3)(n+3)=6 \n (1)/(3)n+1=6 \n -1\ \ \ \ -1 \n (1)/(3)n=5 \n n=\boxed{15}$

3.82e+7 in standard form shown in calculator display

Answers

The answer is 3.82*10^7.

This is because in the calculator when the number is quite big enough or small enough it is written in a standard form which is 3.82*e^7 as the calculator is not able to write in the power of 10.

So whenever it is e to the power something it means it is 10 to the power something. In this case it was 3.82*e^7 which means 3.82*10^7. Which means 38200000.

e+7 means 10^+7
basically move the decimal place 7 placs to right so it would be aprox
38200000.0

Which integer represents a loss of 11 yards in a football game?

Answers

Answer:

-11?

Step-by-step explanation:

Answer:

-11

Step-by-step explanation:

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