3 years ago

Which of the following relations represent a function?

1 answer:

7 0

The answer would be c because if you see closely the function is -1 and 4 March determining the perspectives and how the procedure goes

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What is (-i)5?<br> A -1<br> B 1<br> C -I<br> D i

dezoksy [38]

Answer:

-i^5=-i

Step-by-step explanation:

rewrite the equation ;

i^4=1

I^4 *-i = 1*-i=-i

8 0

3 years ago

Find an equation that models the path of a satellite if its path is a hyperbola, a = 55,000 km, and c= 81,000 km. Assume the cen

elena-14-01-66 [18.8K]

Answer:

$\frac{x^2}{55000^2} - \frac{y^2}{59464^2} =1$

Step-by-step explanation:

the transverse axis is horizontal.

so its a horizontal hyperbola

Center is the origin so center is (0,0)

Equation of horizontal hyperbola is

$\frac{x^2}{a^2} - \frac{y^2}{b^2} =1$

Given a= 55000 and c= 81000

c^2 = a^2 + b^2

81000^2 = 55000^2 + b^2

subtract 55000^2 on both sides

b = sqrt(81000^2 - 55000^2)= 59464.27

now plug in the values

$\frac{x^2}{55000^2} - \frac{y^2}{59464^2} =1$

7 0

3 years ago

Can someone help? 25 points

gregori [183]

Answer:

t ≥ 18

Step-by-step explanation:

He has run 12 miles plus some more miles t. He need to run at least 30 miles

12+t ≥ 30

Subtract 12 from each side

12+t-12 ≥ 30-12

t ≥ 18

3 0

3 years ago

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Jose bought 1.5 pounds of apples for $3.60. How much would 3/4 of a pound of apples cost?

denpristay [2]

$1.80, because 3/4 is half of 1.5, and $1.80 is one half of $3.60.

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3 years ago

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What does this symbol means *

m_a_m_a [10]

Answer:

it's a star

Step-by-step explanation:

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3 years ago

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