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3 years ago

What is the answer can’t seem to get it right.

Mathematics

1 answer:

kow [346]3 years ago

6 0

Answer:

Step-by-step explanation:

Each time the squares double so the pattern will go, 1,2,4,8,16

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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

Which of the following best describes the algebraic expression 7(x-9) +14 ?

forsale [732]

Answer:

Fourteen more than seven times the quantity of a number minus nine.

Step-by-step explanation:

8 0

3 years ago

If a figure has five vertices and eight edges, how many faces does it have?

sladkih [1.3K]

5. it is a pyramid with a rectangular base

4 0

3 years ago

Read 2 more answers

How do I solve for m?

vodomira [7]

$x^3y^2\left(\dfrac{x^2 y^3 z^m}{z^{-5}}\right)=x^5y^5z\\\\
x^5y^5z^{m+5}=x^5y^5z\\\\
m+5=1\\\\
\boxed{m=-4}$

7 0

3 years ago

Read 2 more answers

The area of a square is 160x^5y^2. What is the length of one side?

Aleksandr [31]

------------------------------------------------------------------
Formula of area of square
------------------------------------------------------------------
Area of square = Length x Length
Area of square = Length2

------------------------------------------------------------------
Given information
------------------------------------------------------------------
Area of square = $160x^5y^2$

------------------------------------------------------------------
Find length
------------------------------------------------------------------
$length^2 = 160x^5y^2$
$length = \sqrt{160x^5y^2}$
$length = 4y\sqrt{10x^5}$

-----------------------------------------------------------------
$\Longrightarrow \ Answer: \boxed {\boxed{ 4y\sqrt{10x^5} }}
$
-----------------------------------------------------------------

5 0

3 years ago