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3 years ago

I NEED HELP URGENT PLOT THE POINT!!!!

Mathematics

1 answer:

Natasha2012 [34]3 years ago

7 0

-3/4 would be the line directly to the right of -1

11/4 would be the line directly to the left of 3

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Ishaan is 3times as old as Christopher and is also 14 years older than Christopher.

adoni [48]

Ishann is 21 years old.

8 0

3 years ago

What is the slope of the line shown below?

GaryK [48]

Answer:

2/3

Use the rise over run formula and then simplify

3 0

3 years ago

Read 2 more answers

A college football coach has decided to recruit only the heaviest 15% of high school football players. He knows that high school

Alla [95]

Answer:

The coach should start recruiting players with weight 269.55 pounds or more.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 225 pounds

Standard Deviation, σ = 43 pounds

We are given that the distribution of weights is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.15

$P( X > x) = P( z > \displaystyle\frac{x - 225}{43})=0.15$

$= 1 -P( z \leq \displaystyle\frac{x - 225}{43})=0.15$

$=P( z \leq \displaystyle\frac{x - 225}{43})=0.85$

Calculation the value from standard normal z table, we have,

$P(z < 1.036) = 0.85$

$\displaystyle\frac{x - 225}{43} = 1.036\\\\x = 269.548 \approx 269.55$

Thus, the coach should start recruiting players with weight 269.55 pounds or more.

3 0

4 years ago

Hi, can someone help me on this. I'm stuck --

CaHeK987 [17]

Answer:

a) Fx=-5N Fy=-5*sqrt(3) N b) Fx= 5*sqrt(3) N Fy=-5N

c) Fx=-5*sqrt(2) N Fy=-5*sqrt(2) N

Step-by-step explanation:

The arrow's F ( weight) component on axle x is Fx= F*sinA and on axle y is

Fy=F*cosA

a) The x component and y component both are opposite directed to axle x and axle y accordingly. So both components are negative.

So Fx = - 10*sin(30)= -5 N Fy= -10*cos(30)= -10*sqrt(3)/2= -5*sqrt (3) N

b) Now the x component is co directed to axle x , and y component is opposite directed to axle y.

So x component is positive and y components is negative

So Fx = 10*sin(60)= 5*sqrt(3) N Fy= -10*cos(60)= -10*1/2= -5 N

c)The x component and y component both are opposite directed to axle x and axle y accordingly. So both components are negative.

So Fx = - 10*sin(45)= -5*sqrt(2) N

Fy= -10*cos(45)= -10*sqrt(2)/2= -5*sqrt (2) N

8 0

4 years ago

Jo jo has a total amount of $12.45 in quarters and dimes in his pocket. he has a total of 60 coins. how many quarters and dimes

baherus [9]

Given:

Total number of coins (Quarters and dimes) = 60

Total amount = $12.45

To find:

The number of quarters and dimes.

Solution:

Let x be the number of quarters and y be the number of dimes.

We know that,

1 quarter = 0.25 dollar

1 dime = 0.10 dollar

Total coins: $x+y=60$ ...(i)

Total amount: $0.25x+0.10y=12.45$ ...(ii)

From (i), we get

$y=60-x$ ...(iii)

Putting this value in (ii), we get

$0.25x+0.10(60-x)=12.45$

$0.25x+6-0.10x=12.45$

$0.25x-0.10x=12.45-6$

$0.15x=6.45$

Divide both sides by 0.15.

$x=\dfrac{6.45}{0.15}$

$x=43$

Putting x=43 in (iii), we get

$y=60-43$

$y=17$

So, the number of quarters is 43 and the number of dimes is 17.

Therefore, the correct option is b.

8 0

3 years ago