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Adult racehorse weights are normally distributed, with a mean of 500 kg and a standard deviation of 33 kg. Approximately what percentage of the adult racehorses weigh more than 570 kg?
1.7%
98.3%
93.3%
0.12%

Answer:

600

Step-by-step explanation:

+2  

2 5

2 4

---------

 First 5 x 4=20 which means add 2 to the equation 2 x 4

Second 4 x 2=8 + 2=10 do first 3 numbers are 100

third we put a 0 below the first 0 on first line.

fourth do 5 x 2=10 so we add 1 to 2 x 2

fifth 2 x 2 + 1= 5

sixth 100 + 500=600 and there's your answer

Hope this helps have a great afternoon:)

Step-by-step explanation:

5x(2x-3y)+4y(2x-3y)

10x-15y+8xy-12y²

hope this helps you

have a good day

Answer:

[tex]\huge\boxed{\bf\:10x^{2} - 7xy - 12y^{2}}[/tex]

Step-by-step explanation:

[tex]\tt\:(5x+4y)*(2x-3y)\\\\\sf\: Use \: the \: distributive \: property. \\\\\tt\: 5x (2x - 3y) + 4y(2x - 3y)\\\tt\:10x^{2} - 15xy + 8xy - 12y^{2}\\\\\sf\: Simplify \: it \: further.\\\\\boxed{\bf\:10x^{2} - 7xy - 12y^{2}}[/tex]

_________

Have a great day!

Answer:

3(9a+8)

Step-by-step explanation:

have a nice day and week

Answer:

3(9a+8)

Step-by-step explanation:

The greatest common factor of both terms is 3

So we take 3 outside the brackets to give us:

3(9a+8)

Answer:

x=7

Step-by-step explanation:

4 and x are getting multiplied

take 4 on other side

28 gets divided by 4

4X7 is 28

The amount earned by Ria is given by the hourly rate less the amount

that she pays as tax.

Responses:

(i) $540

[tex](ii) \hspace{0.15 cm} The \ number \ of \ hours \ worked, \ x = \dfrac{303.75 }{13.5 \times 1\frac{1}{2}} = 15[/tex]

(iii) $1,971

(iv) $29.565

(1) The rate Ria is paid per hour = $13.5

The number of hours Ria worked during the week = 40 hours

(2) The gross earnings in August = $2,463.75

The number of hours in a regular week = 40 hours

The over time rate = [tex]\mathbf{1\frac{1}{2}}[/tex] × Hourly rate

Let x represent the number of hours worked overtime

Therefore;

$13.5 × 40 × 4 + x ×  [tex]1\frac{1}{2}[/tex] × $13.5 = $2,463.75

$2,463.75 - $2,160 = $303.75 = x × [tex]\mathbf{1\frac{1}{2}}[/tex] × $13.5

[tex]x = \dfrac{303.75 }{13.5 \times 1\frac{1}{2}} = \mathbf{15}[/tex]

(iii) Given that 20% was deducted as tax, the percentage of her salary left is 100% - 20% = 80% = 0.8

Which gives;

(iv) The interest rate, R = 4.5% = 0.045

The amount invested, P = $219

Duration of the investment, T = 3 years

The interest after 3 years is therefore;

I = P·R·T

Learn more about percentages here:

https://brainly.com/question/24753098

Answer: 0.85 and strong positive correlation

Step-by-step explanation: i just did it

Answer:

its 0.85 and strong positive correlation

Step-by-step explanation:

I guessed it and got it right

Answer:

5.25

Step-by-step explanation:

5.25 US cups in each container (5 cups 1/4 cup)

Answer:

59,004 (not to the nearest meter) 59,000 (to the nearest meter)

Step-by-step explanation:

2200 mph = 983.4 mps

983.4 x 60 = 59,004

59,004 = 59,000 meters per minute

Step-by-step explanation:

The = equals symbol is used to show that the values on either side of it are the same. It is most commonly used to show the result of a calculation, for example 2 + 2 = 4, or in equations, such as 2 + 3 = 10 − 5.

Step-by-step explanation:

you must make sure that you answers are the same, example 3+3=6.for this example you will arrive at the same answer

Answer:

24

Step-by-step explanation:

7 + 4 × 5 - (15 ÷ 5) ← evaluate parenthesis

= 7 + 4 × 5 - 3 ← evaluate multiplication

= 7 + 20 - 3 ← evaluate from left to right

= 27 - 3

= 24

Answer:

[tex]24[/tex]

Step-by-step explanation:

[tex]7\:+\:4\:\times \:5\:-\:\left(15\:\div \:5\right)\:[/tex]

Follow PEMDAS:

P ~ Parentheses, E ~ Exponents, M ~ Multiplication, D ~ Division, A~ Addition, and S ~ Subtraction.

1) Parentheses:

2) Multiplication:

3) Addition/Subtraction:

~

I don't know if u need both but i'll solve both

2: -(z-3y-3x+z+2y+3x+2y)-x

   -z+3y+3x-z-2y-3x-2y-x

    -2z-y-x

3:    7-a+b-4+3a-2b

     3+2a-b

I hope this helped :)

The other two linear factors of the polynomial x³ + 4x² +x -6 are; Choice A: (x – 1) and (x + 3)

By ling division of polynomials, it follows that the division of polynomial x³ + 4x² +x -6 by x +2 yields the quadratic expression;

On this note, the factorisation of the quadratic expression above yields factors;

Read more on factorisation of polynomials;

https://brainly.com/question/280849

Step-by-step explanation:

You should study the exponential laws. Remember that (a/b) to the exponent of m is the same as a to the exponent of m over b to the exponent of m.

Therefore, 2 to the exponent of 5×4 over 3 to the exponent of 2×4 equals to 1048576/6561.

Answer:

2 to the exponent of 5×4 over 3 to the exponent of 2×4 equals to 1048576/6561.

Step-by-step explanation:

Step-by-step explanation:

SoH, CaH, ToA

We will be using soH

Sin0=O/H

Sin0=50/1200

0=Sin^-1(50/1200)

=2.39°

(not sure though)

Answer:

multiply across

Step-by-step explanation:

3/1 × 1/7 = 3/7

Answer: 900 degrees

Step-by-step explanation:

The formula for the sum of the interior angles is (n-2)*180 where n is the number of sides.

In this case, there are 7 sides so the sum of the interior angles would be

(7-2)*180

= 5*180

= 900 degrees

EXPLANATION: Simply substitute the value of 3 given. In other words, f(3) is the function of f(x), however, in this case, x is 3

f(3)=3(3)−4

Distribute 3 through the parenthesis

f(3)=9−4

Simplifyf(3)=5

Step-by-step explanation:

Answer:

1) Center = A → centermost point of a circle.

2) Radius = AB, AC → distance from centre to any point on the surface of the circle.

3) Diameter = BC → longest chord; distance from 1 point of the circle to another which passes through the centre of the circle.

4) Chord = IH → distance from 1 point on the circle to another.

5) Tangent = GF → external line which passes through only 1 point of the circle.

6) Secant = DE → external line which passes through 2 points on the circle.

Hope it helps ⚜

Answer:

40%

Step-by-step explanation:

10% of 40 is 4

4x4=16 meaning that 10% x 4 = 40%

Answer:

40%

Step-by-step explanation:

I dont know how to really explain it I just solved it using calculator

Answer:

 ( -3•28•7k20x2p12)

Step-by-step explanation:

                                                   (0-23p5)

 0-(((((((3•(k2))•x)•((4•(k6))3))•(0-(7•(p4))))•x)•————————)•p3)

                                                      2    

         -23p5

Simplify —————

             2  

2.1    23   divided by   21   = 2(3 - 1) = 22

Answer:

1000

Step-by-step explanation:

Okay so let's put T as TOTAL tickets

1800+1500+3T

To make it easier lets do this

3300+3T

total earnings is 5T+1300

So now the problem is this

3300+3T=5T+1300

Lets take away 1300 from both sides

3300-1300 = 2000

1300-1300 = 0

2000+3T=5T

Lets now take 3T from both sides

3T = 3T = 0

5T - 3T = 2T

now we have

2000=2T

Divide both sides by 2

1000=T

The team must sell 1000 tickets to break even

Answer:

24 yd

Step-by-step explanation:

Answer:

The profit percentage is 25%.

Step-by-step explanation:

Solution :

Selling price = Rs. 600

Profit = 1/5 of the selling price

Profit percentage = ??

Profit = 1/5 of the selling price

600 × 1/5 = 120

Profit = Rs. 120

Cost price = Selling Price - Profit

= 600 - 120

= 480

Profit pecentage -

P% = (SP - CP)/CP × 100

= (600 - 480)/480 × 100

= 120/480 × 100

= 1/4 × 100

= 25%

Hence, the profit percentage is 25%.

it is sometimes called as response variable

stores revenue = $12,400

35 % of 12,400 = revenue for good advertising

= 35 / 100 × 12,400

= $4,340

so from $12,400 $4,340 was earned due to good advertising

Answer:

x=2

Step-by-step explanation:

If 15x=30 and 15*2=30 then x=2

Hope this helped.

A brainliest is always appreciated.

For the standard normal distribution, if P (z≤a) = 0. 7116, then the value of P(z≥a) is 0.2884.

The standard normal distribution is a special type of normal distribution where the mean is 0, and the standard deviation is 1.

As it is given that the value of P(z≤a)=0.7116, therefore, for P(z≤a) we can write,

[tex]P(z\leq a) = 0.7116\\\\P(z > a) =1- 0.7116\\[/tex]

But as we know the fact that in continuous distribution, the probability of a single point is 0, therefore, we can write

[tex]P(Z \leq z) = P(Z < z) )[/tex]

Similarly, for P(z>a)=0.7116 we can write,

[tex]P(z > a) = 1-0.7116\\\\P(z \geq a) = 1-0.7116\\\\P(z \geq a) = P(z=a) + P(z > a) = 1- 0+0.7116\\\\P(z \geq a) = 0.2884[/tex]

Hence, For the standard normal distribution, if P (z≤a) = 0. 7116, then the value of P (z≥a) is 0.2884.

Learn more about Standard normal distribution:

https://brainly.com/question/25447725

Step-by-step explanation:

since in a triangle each side must be shorter than the sum of the other 2 sides (otherwise the end points cannot connect, and there is no triangle), the necessary inequality condition must be

side < 1 + 2 = 3

so,

side < 3

for a lower limit let's go through the cases

1 < 2 + side (is always true)

2 < 1 + side

1 < side (side must be larger than 1)

and again

side < 1 + 2 = 3

side < 3

so the full restriction for the third side is

1 < side < 3

Answer:

The answer is 1.75

Step-by-step explanation:

2-1/5 or (.25)