Work out the question ?

4 1/2 - 1 1/3=

Answer:

35

Step-by-step explanation:

We solve the above question using z score formula

z = (x-μ)/σ, where

x is the raw score = ?

μ is the population mean = 70

σ is the population standard deviation = 14

We were given the z score in the question as: Two and one half standard deviations below the mean

Hence:

= μ - zσ

= 70 - 2.5(14)

= 70 - 35

= 35

The score that is two and one half standard deviations below the mean is 35

Answer:

X= -1

Step-by-step explanation:

So to solve equations like this, you want to isolate the variable first. Then you begin to simplify by dividing each side of the equation by a factor that does not contain a variable.  

Answer: He owes Beth and his mom $125

Step-by-step explanation:

Answer:

D) y = 4x + 2

Step-by-step explanation:

Explanation:-

Given ( 0, 2) ( -1 , -2 )

Given in equalities     y = 4x + 2

    put point  (0,2)  in equation y = 4x +2

                                                 2 = 4(0) +2

                                                2 = 2

Therefore satisfies the point (0,2) equation   y = 4x +2

 put point  (-1,-2)  in equation y = 4x +2

                                               -2 = 4(-1)+2

                                              -2  = -2

Therefore satisfies the point (-1,-2) equation   y = 4x +2

Answer:

C

Step-by-step explanation:

Answer:

k

Step-by-step explanation:

789779889900000808907767478

Step-by-step explanation:

there you go!

Answer:

d

Step-by-step explanation:

because both the measurement and the congruent side are opposite in sentence

Answer:

Replace all occurrences of x x in x−y=5 x - y = 5 with 7−y 7 - y . x=7−y x = 7 - y. (7−y)−y=5 ( 7 - y ) - y = 5. Subtract y y from −y - y . x=7−y x = 7 - y. 7−2y=5 7

Step-by-step explanation:

Answer:

6p=$13.50

Step-by-step explanation:

Answer:

x= 7426-x is your answer

Answer:

115 students have a bike.

Step-by-step explanation:

0.92 x 125 = 115

115 students have a bike

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

Answer:

4 hundred ones

Step-by-step explanation:

4 hundreds = 400

400 = 4 hundred ones.

The only difference is the plural use and singular use.

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

Answer:

5

Step-by-step explanation:

g(x)=3x+2

g(x)÷x=3x÷x+2

g=3+2

g=5

f(x)=4x-3

f(x)÷x=4x÷x-3

f=4-3

f=1

3x+2÷g=4x-3÷f

2÷g=x-3÷f

5÷g=x÷f

5÷5=x÷1

1=x

1×(5×1)

5

Answer:

1 / 7

Step-by-step explanation:

Given :

Number of shirts in closet = 10

Number of striped shirt = 5

Number of plaid = 3

Probability of choosing 2 plaid shirts and 2 stripped shirt

Probability = required outcome / Total possible outcomes

Total possible outcomes = 10C4

Required outcome :

2 plaid shirt from 3 = 3C2

2 stripped shirts from 5 = 5C2

Hence,

P(choosing 2 plaid and 2 stripped shirt) :

(3C2 * 5C2) / 10C4

Recall:

nCr = n! / (n-r)!r!

Using calculator :

(3C2 * 5C2) / 10C4

= (3 * 10) / 210

= 30 / 210

= 1 / 7

Answer:

so much for the first time I was just wondering if you want to be a good member of the

Answer:

Step-by-step explanation:

6(x+1) = -2(3x+9)

6x+6 = -6x-18

6x+6x+6-6 = -6x+6x-18-6

12x=-24

x= -2

Answer:

4 rth answer is correct if it is wrong plz comment

Step-by-step explanation:

=14-3/21

=11/21

=

2-1/6

1/6

4-3/12

1/12

Answer:

55

Step-by-step explanation:

Table - 450 + 540 = 990

Graph - 850 + 85 = 935

On the table eleven would equal 990.

On the graph eleven would equal 935.

990 - 935 = 55

Answer:

$80.75

Step-by-step explanation:

From the question, we are given the following parameters

Amount borrowed (principal)=$3800

Time=3 months =1/4 years

Rate = 8.5%

Required

Interest paid by the man

Using the simple interest formula;

SI= Principal*Rate*Time/100

SI=3800*8.5*0.25/100

SI=38*8.5*0.25

SI=$80.75

Hence the man paid $80.75 for the use of the money

PLEASE MARK ME AS BRAINLIEST

Answer:

0.9772 = 97.72% probability that a randomly generated value of X is greater than a randomly generated value of Y

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question:

[tex]\mu_X = 45, \sigma_X = 4, \mu_Y = 35, \sigma_Y = 3[/tex]

What is the probability that a randomly generated value of X is greater than a randomly generated value of Y

This means that the subtraction of X by Y has to be positive.

When we subtract two normal variables, the mean is the subtraction of their means, and the standard deviation is the square root of the sum of their variances. So

[tex]\mu = \mu_X - \mu_Y = 45 - 35 = 0[/tex]

[tex]\sigma = \sqrt{\sigma_X^2+\sigma_Y^2} = \sqrt{25} = 5[/tex]

We want to find P(X > 0), that is, 1 subtracted by the pvalue of Z when X = 0. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{0 - 10}{5}[/tex]

[tex]Z = -2[/tex]

[tex]Z = -2[/tex] has a pvalue of 0.0228

1 - 0.0228 = 0.9772

0.9772 = 97.72% probability that a randomly generated value of X is greater than a randomly generated value of Y

Answer:

The answer is A.

Step-by-step explanation:

Plato

The range of the function is (A)

What is graph?

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

As, per the graph we can see that the range for y starts from negative infinity but it only exceeds upto +4.

Hence, the range is -∞ < y ≤ 4.

Learn more about graph here:

https://brainly.com/question/16608196

#SPJ2

Answer:

10 and 11

Step-by-step explanation:

Answer:

[tex]7 \frac{1}{2}[/tex]

hope this helps :))

Step-by-step explanation:

Given

[tex]h(t)=(139kt)^2-69t+80[/tex]

For roots [tex]h(t)=0[/tex]

[tex](139kt)^2-69t+80=0\\t=\dfrac{69\pm\sqrt{(-69)^2-4\times (139k)^2(80)}}{2\times 139}\\[/tex]

[tex]t=\dfrac{69\pm\sqrt{4761-6182720k^2}}{278}[/tex]

Larger root: [tex]t=\dfrac{69+\sqrt{4761-6182720k^2}}{278}[/tex]

smaller root: [tex]t=\dfrac{69-\sqrt{4761-6182720k^2}}{278}[/tex]

For exactly one root D=0

i.e. [tex]4761-6182720k^2=0\\\\k=\dfrac{69}{139\times 4\times 2\times \sqrt{5}}\\k=0.0277[/tex]

Answer:

do you need a bandaid?

Step-by-step explanation:

Step-by-step explanation:

Wth?

Are u okay??

call 911