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3 years ago

Angles A and B are complementary. If mA is 13°, what is the measure of B? A. 167° B. 347° C. 13° D. 77°

Mathematics

1 answer:

Marta_Voda [28]3 years ago

7 0

Answer:

Step-by-step explanation:

complementary sums until 90 degrees

90-13=77

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1 1/3

Step-by-step explanation:

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Answer:

A, B, C

Step-by-step explanation:

whole number: the set of counting numbers, 1, 2, 3, ..., and includes the number 0.

integer: all whole numbers, zero, and all the negatives of the whole numbers: ..., -3, -2, -1, 0, 1, 2, 3, ...

rational: any number that can be written as a fraction of integers

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1.00 is the same as 1

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A whole number

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3 years ago

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Jill and Erica make 4 gallons of lemonade for their lemonade stand. If they charge $2.00 per quart, how much money will they mak

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Answer:

They will have 32 dollars

Step-by-step explanation:

4 Gallons are 16qt

Sooo....

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3 years ago

Given the trinomial 2x*2 + 4x + 4, predict the type of solutions. a. Two rational solutions b. One rational solution c. Two irra

OverLord2011 [107]

Answer:

d. Two complex solutions

Step-by-step explanation:

We have been given a trinomial $2x^2+4x+4$ and we are supposed to predict the type of solutions of our given trinomial.

We will use discriminant formula to solve for our given problem.

$\text{Discriminant}=b^2-4ac$ , where,

$a =\text{Coefficient of }x^2$ ,

$b =\text{Coefficient of }x$ ,

$c =\text{Constant }$

Conclusion from the result of Discriminant are:

$D$

$D=0\text{ means one real zero with of multiplicity two}$

$D>0\text{ means two distinct zeroes}$

Upon substituting our given values in above formula we will get,

$\text{Discriminant}=4^2-4*2*4$

$\text{Discriminant}=16-32$

$\text{Discriminant}=-16$

Since our discriminant is less than zero, therefore, out given trinomial will have two complex solutions and option d is the correct choice.

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