MATHEMATICS HIGH SCHOOL

-4x <8 solve the inequality

Answers

Answer 1

Answer:

Answer:

x>−2

Step-by-step explanation:

−4x<8

Step 1: Divide both sides by -4.

−4x

−4

x>−2

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Could someone help me please? I am completely lost on how to figure out this problem.Use Synthetic division to show that x is a solution for the third degree polynomial equation and use the result to Factor the Polynomial Completely. List All real solutions of the equationx^3 - 57x - 56 = 0, x = -1x = _______ (smallest value)x = _______x = _______ (largest value)

Which of the following is equiangular and equilateral?A. rhombus
B. square
C. rectangle
D. parallelogram

Answers

I think its B because squares has equal sides and angles

Square is the correct answer

Find the correct sum of these geometric series..*a1=343, an=-1, r= -1/7

*a1=80, n=7, r= -1/2

*a1= 3, a8=384, r=2

Please help me with these problems.. :(

Answers

1)
$a_(1)=343\n a_(r)=-1\nr=- (1)/(7) \na_(r)=a_(1)* q^(r-1) \n-1=343*q^(r-1)\n-1=343* -((1)/(7))^(r-1)\n-7^0=7^3*(- 7)^(-r+1)\n7^0=7^3*7^(-r+1)\nindexes: \n0=3-r+1\nn=4$
$S_r=a_1 (1-r^n)/(1-r)\nS_r=343* (1- (-(1)/(7) )^4)/(1- (-(1)/(7) ))\nS_r=343* (1- ((1)/(2401) ))/(1+ ((1)/(7) ))\nS_r=343* (((2400)/(2401) ))/(((8)/(7) ))\nS_r=343* (300)/(343) \nS_r=300$
2)
$S= a_(1)* (1- r^(2) )/(1-r)\n S=80*(1- ( -(1)/(2)) ^(2) )/(1+(1)/(2) )\nS=80* (1- (1)/(4) )/( (3)/(2) )=80* (3)/(4)* (2)/(3) =40$
3) we dont know how many numbers has this sequence

Annabelle went rock climbing. The below graph is a model of her climbing astime passes.
Answer the following questions about the graph:
a. What are the labels on each axis?
b. What is happening for the first 5 minutes of Annabelle's climbing session?
What is your reason for saying that?
c. When was Annabelle climbing fastest? How do you know?
d. What is happening from 5 to 7 minutes? What is your reason for saying
that?

Answers

D. she’s at a constant rate. i say that because there’s a straight line indicating she’s moving at the same pace/speed.

Joshua does not want to spend more than $22 on a long-sleeve shirt. Which description of shirt prices would keep joshua within his spending limit, not including tax? Select all that apply a- 15% off %25 b- 30% off 32% c-19.65 plus 2.35 shipping fee d- 20.45 plus a $1.60 shipping fee

Answers

Answer:

the answer is C

Step-by-step explanation:

19.65 + 2.35 is exactly 22, not including tax

Answer:

A and C

Step-by-step explanation:

A. 15% off $25

15% = 0.15

0.15 x 25 = 3.75

25 - 3.75 = 21.25

22 or under? Yes

B. 30% off $32

30% = 0.30

0.30 x 32 = 9.60

32 - 9.60 = 22.40

22 or under? No

C. $19.65 plus a 2.35 shipping fee

19.65 + 2.35 = 22

22 or under? Yes

D. $20.45 plus a $1.60 shipping fee

20.45 + 1.60 = 22.05

22 or under? No

Even though this is late, the other answer did not mention A being the answer as well so I hope this helped!

Please help me with this two step math problem! THANK YOU !!!!!!!!

Answers

The job that would give you more is the one where you double the penny everyday. Although it seems small at first but slowly slowly you start making a lot more money.

To calculate how much you would make in 30 days by doubling the penny, you just double the amount every day until you get to 30:
$.01 - First day
$.02
$.04
$.08
$.16 - Fifth day
$.32
$.64
$1.28
$2.56 - Ninth day
....
$5,368,709.12 - 30th day

If you add it all up, the sum you would get is $10,737,418.23.

That is 11 times more than the first option! :)

Table:
Days Money
Day 1 $.01
Day 2 $.02
Day 3 $.04
Day 4 $.08
Day 5 $.16
Day 6 $.32
Day 7 $.64
Day 8     $1.28
Day 9     $2.56
Day 10   $5.12
Day 11 $10.24
Day 12 $20.48
Day 13 $40.96
Day 14 $81.92
Day 15 $163.84
Day 16 $327.68
Day 17 $655.36
Day 18 $1,310.72
Day 19 $2,621.44
Day 20 $5,242.88
Day 21 $10,485.76
Day 22 $20,971.52
Day 23 $41,943.04
Day 24 $83,886.08
Day 25 $167,772.16
Day 26 $335,544.32
Day 27 $671,088.64
Day 28 $1,342,177.28
Day 29 $2,684,354.56
Day 30 $5,368,709.12

And as mentioned above, the total sum is $10,737,418.23

Number of periods would be is 30 days. Or 1 month.
And this is a good example of compund interest.

(461065) João Augusto lança uma bola para cima e ela descreve uma trajetória vertical. Os instantes de tempo em que a bola sai e retorna à mão de João Augusto são representados pelas raízes da equação – 5t² + 40t = 0. Durante quantos segundos a bola permaneceu no ar?

Answers

https://brainly.com.br/

Esse e o site em Ingles, pergunta no em portugues, eles vao responder em portugues, boa sorte

Final answer:

João Augusto's ball remained in the air for 8 seconds. This was determined by the roots of the equation -5t² + 40t = 0, which represents the ball's vertical trajectory.

Explanation:

The equation given in the question represents the motion of the ball thrown into the air. Specifically, it is a parabolic equation which describes the motion of an object under the influence of gravity. We can determine the duration of the ball's flight by finding the roots of this equation.

The equation -5t² + 40t = 0 can be factored into -5t(t - 8) = 0. Therefore, the roots of this equation are 0 and 8, which represent the instants of time. In this case, t = 0 is the time when João Augusto launched the ball, and t = 8 is the time when he caught it again.

So, the ball remained in the air for 8 seconds.

Learn more about Quadratic Equations here:

brainly.com/question/30098550

#SPJ3

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