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3 years ago

What is NOT a benefit of having a good credit score?

Mathematics

1 answer:

svp [43]3 years ago

3 0

The correct answer is B.

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In a video game, a bird is flung on a sling shot and follows a parabolic path. The path of the bird can be modeled by the equati

Novay_Z [31]

Answer:

The bird will take 0.88 seconds to reach a height of 40 feet in the air for the first time

Step-by-step explanation:

we have

$h=-16t^2+55t+4$

This is a vertical parabola open downward

The vertex represent a maximum

where

h is the height of the bird

t is the amount of time, in seconds, the bird had been in the air

For h=40 ft

substitute in the quadratic equation

$40=-16t^2+55t+4$

$-16t^2+55t+4-40=0$

$-16t^2+55t-36=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-16t^2+55t-36=0$

$a=-16\\b=55\\c=-36$

substitute in the formula

$x=\frac{-55\pm\sqrt{55^{2}-4(-16)(-36)}} {2(-16)}$

$x=\frac{-55\pm\sqrt{721}} {-32}$

$x=\frac{-55+\sqrt{721}} {-32}=0.88\ sec$

$x=\frac{-55-\sqrt{721}} {-32}=2.56\ sec$

therefore

The bird will take 0.88 seconds to reach a height of 40 feet in the air for the first time

3 0

3 years ago

Cost of a pen: $0.95<br> Markup: 60%

julia-pushkina [17]

Multiply the $0.95 by .06 or if you have a percentage button then do $0.95 by 60% and you’ll get your answer of 0.57

5 0

3 years ago

2) A month of the year is randomly selected.

lara31 [8.8K]

Answer:

5/6

Step-by-step explanation:

The months of the year are: January February March April May June July August September October November December

There are 12 months

There are 10 months that do not start with A

P (month that does NOT begin with the letter A)

= number of months that do not start with A / total months

=10/12

=5/6

3 0

3 years ago

Read 2 more answers

Y = 2x – 5 2y – 4x =

nikklg [1K]

Answer:

2y-4x

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Can someone help please!!!!

Nuetrik [128]

Step-by-step explanation:

pretty sure it's 66 because the two lengths added together is 66

7 0

3 years ago