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2 years ago

IM BEGGING PLEEEASEEEEEEEEEEEEEEEEEEEEEE HELP ME

Mathematics

2 answers:

Rudiy272 years ago

7 0

Answer:

C) 15x^3y^3

Step-by-step explanation:

5 x 3 is 15

5xy^2 has 1 x and 3yx^2 has 2. 1x + 2x=3x

5xy^2 has 2 y. 3yx^2 has 1. 2y + 1y = 3y.

Therefore it is C

Alborosie2 years ago

6 0

What is that A
What is that

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NASA launches a rocket at t = 0 seconds. Its height, in meters above sea-level, as a function of time is given by h ( t ) = − 4.

Oliga [24]

Answer:

$\displaystyle 1)48.2 \: \: \text{sec}$

$\rm \displaystyle 2)3021.6 \: m$

Step-by-step explanation:

<h3>Question-1:</h3>

so when flash down occurs the rocket will be in the ground in other words the elevation(height) from ground level will be 0 therefore,

to figure out the time of flash down we can set h(t) to 0 by doing so we obtain:

$\displaystyle - 4.9 {t}^{2} + 229t + 346 = 0$

to solve the equation can consider the quadratic formula given by

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

so let our a,b and c be -4.9,229 and 346 Thus substitute:

$\rm\displaystyle t = \frac{ - (229) \pm \sqrt{ {229}^{2} - 4.( - 4.9)(346)} }{2.( - 4.9)}$

remove parentheses:

$\rm\displaystyle t = \frac{ - 229 \pm \sqrt{ {229}^{2} - 4.( - 4.9)(346)} }{2.( - 4.9)}$

simplify square:

$\rm\displaystyle t = \frac{ - 229 \pm \sqrt{ 52441- 4( - 4.9)(346)} }{2.( - 4.9)}$

simplify multiplication:

$\rm\displaystyle t = \frac{ - 229 \pm \sqrt{ 52441- 6781.6} }{ - 9.8}$

simplify Substraction:

$\rm\displaystyle t = \frac{ - 229 \pm \sqrt{ 45659.4} }{ - 9.8}$

by simplifying we acquire:

$\displaystyle t = 48.2 \: \: \: \text{and} \quad - 1.5$

since time can't be negative

$\displaystyle t = 48.2$

hence,

at 48.2 seconds splashdown occurs

<h3>Question-2:</h3>

to figure out the maximum height we have to figure out the maximum Time first in that case the following formula can be considered

$\displaystyle x _{ \text{max}} = \frac{ - b}{2a}$

let a and b be -4.9 and 229 respectively thus substitute:

$\displaystyle t _{ \text{max}} = \frac{ - 229}{2( - 4.9)}$

simplify which yields:

$\displaystyle t _{ \text{max}} = 23.4$

now plug in the maximum t to the function:

$\rm \displaystyle h(23.4)- 4.9 {(23.4)}^{2} + 229(23.4)+ 346$

simplify:

$\rm \displaystyle h(23.4) = 3021.6$

hence,

about 3021.6 meters high above sea-level the rocket gets at its peak?

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2 years ago

This information is for credit card with a _______ APR.

otez555 [7]

Answer:

d. 0%

Step-by-step explanation:

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2 years ago

Math helpp ..........

Ad libitum [116K]

Answer:

12 is the relation

Step-by-step explanation:

if you multiply 12 by your y factor you get your x fator

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2 years ago

The diameter of a circle is 9 in. Find its circumference in terms of . Answer: C = in Submit Answer

Pie

$C\text{ = 9}\pi\text{ in}$

To find the circumference, we will have to multiply the length of the diameter by pi

Mathematically, we have this as;

$\begin{gathered} C\text{ = }\pi\times d \\ C=\text{ }\pi\times9\text{ = 9}\pi \end{gathered}$

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11 months ago

What is p divided by 9

Softa [21]

I can’t really help you because “p” can be anything so you have to have the equation sorry

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