Isaiah earned a score of 61 on Exam A that had a mean of 78 and a standard deviation
of 10. He is about to take Exam B that has a mean of 200 and a standard deviation of
50. How well must Isaiah score on Exam B in order to do equivalently well as he did
on Exam A? Assume that scores on each exam are normally distributed.

Answers

Answer 1

Answer:

isaiah must get a score of 115


Related Questions

Solve for z.
X=3y+3z

Answers

Answer: Option 2

Step-by-step explanation:

What's the volume of this container (QUICK)

Answers

Answer:

1468 in^3

Step-by-step explanation:

Multiply all of the larger box dimensions

10 * 10 * 15 = 1500  in^3

subtract the smaller box cut out corner

2 * 4 * 4 =  32

1500 - 32 = 1468 in^3

Haven baskets manufacturers 83,575 woven baskets a year. determine the minimum sales price Haven baskets must sell each basket for to break even, if the total annual fixed costs are $817,363.50 and the variable cost per basket is $12.17.
$21.95
$24.50
$29.65
$31.25​

Answers

Answer:

Step-by-step explanation:

Givens

Number of baskets sold = 83575

sale price of each = x

Fixed Cost of producing these baskets = 817363.50

Variable cost whis is part of the production of each basket = 12.17

Break Even means the costs = income.

Equation

83575*x = 12.17*83575 + 817363.50       Combine the multiplied facts

Solution

83575x = 1017107.75 + 817363.50          Combine addition on right

83575x = 1834471.25                               Divide by 83575

x = 1834471.25/83575

Answer: x = 21.95


Four congruent right triangles are cut off the corners of a square. The diagram below shows
the dimensions of thesquare and the congruent right triangles.

What is the area of the shaded part of the diagram?
A. 18 sq. in
B. 20 sq. in
C. 28 sq. in
D. 34 sq. in

Answers

Answer:

C

Step-by-step explanation:

Find area of all trinagles and subtract that by total area of square.

HELP RN IM FAILING PLEASE

Answers

Answer:

Top left.

Step-by-step explanation:

Answer: 3x + y = 3

Step-by-step explanation: For a line to be parallel it must have the same slope but a different y intercept. y = mx + b, where M is the slope, and B is the y intercept.

We can solve for y, using 3x + y = 3. Subtracting both sides from 3x, we get y = -3x + 3, which is a different y intercept but the same slope.

110% of 90 is what number a ?

? = 110 over 100
please help​

Answers

Answer:

90 is the orrect answer because I said so

Step-by-step explanation:

Answer:

The answer is a = 99

Step-by-step explanation:

We can solve this using ratios

First we set up the equation:

[tex]\frac{a}{90}= \frac{110}{100}[/tex]

Then cross-multiply:

[tex]100 * a = 90 * 110[/tex]

Simplify:

[tex]100 * a = 9,900[/tex]

Divide both sides by 100:

[tex]a = 99[/tex]

Ta-Da! The answer is a = 99

Hope this helps! :)

3800 millimetres expressed in metres is​

Answers

Answer:

3.8 meters

Step-by-step explanation:

1000 mm=1m

3000mm = 3m

500mm=.5

100mm= .1

800mm=.8m

3800mm=3.8

Please help!!!!!! :)

Answers

Answer:

Option D

Step-by-step explanation:

Given equation:

-4x + 2 = -14

This equation can be solved by:

Isolating the variable(s) and its coefficient(s) on one side of the equation. Dividing both sides of the equation by the coefficient of "x" to isolate x.

Subtracting 2 both sides of the equation (according to step 1):

⇒ -4x + 2 = -14⇒ -4x + 2 - 2 = -14 - 2⇒ -4x = -16

Dividing -4 to both sides of the equation (according to step 2):

⇒ -4x = -16⇒ -4x/-4 = -16/-4⇒ x = 4

Therefore, Option D is correct.

Learn more about this topic: https://brainly.com/question/27460957

Answer:

d) 4

Step-by-step explanation:

Solving for the value of x,

→ -4x + 2 = -14

→ -4x = -14 - 2

→ -4x = -16

→ x = -16/-4

→ [ x = 4 ] {option d}

Verification of the value of x,

→ -4x + 2 = -14

→ -4(4) + 2 = -14

→ -16 + 2 = -14

→ -14 = -14

→ [ LHS = RHS ]

Hence, the value of x is 4.

 Find the length of the third side. If necessary, write in simplest radical form.

IMAGE DOWN BELOW!

SOMEONE PLEASE HELP ME!! ILL GIVE YOU BRAINLIST ANSWER

Answers

Answer:

third side: 2√14

using pythagoras theorem:

a² + b² = c²

t² + 5² = 9²t² + 25 = 81t² = 81 - 25t² = 56t = √56t = 2√14

Answer:

The unknown side of this triangle is 56 or 214

Step-by-step explanation:

Let the unknown side of this right angled triangle be x , so by using Pythagoras theorem we can find out the third side .

=> P² + B² = H²

=> P² = H² - B²

=> P² = 9² - 5²

=> P² = 81 - 25

=> P² = 56

=> P = √56 or 2√14

help me bro fr i need dis done

Answers

Answer: 6^5 = 6^3 * 6^2

When your multiplying exponents, you just add the exponents. So, 3 should be the exponent in the box.

Please help me I can’t do it and don’t add links Three sides of a quadrilateral are the same length q.the length of the fourth side is 7 inches the Preimeter of the quadrilateral is 40 inches write an expression that represents the situations

Answers

Answer:

5

Step-by-step explanation:

5

There are 8 teams to play against each other in a tournament. How many ways can 1st and 2nd place be awarded at the end of the tournament?

Answers

Answer:

28

Step-by-step explanation:

Correct option is C)

Matches played between 8 teams =7+6+5+4+3+2+1=21

The number of ways that can 1st and 2nd place be awarded at the end of tournament is 56.

What is permutation?

A permutation is an arrangement of objects in a definite order. The members of elements of sets are arranged here in a sequence where order matters.

According to the given question

we have  to find,

Number of ways  for 1st and 2nd place can be awarded

Number of ways for 1st place be awarded  = 8

Number of ways for 2nd place be awarded = 7

Therefore,

The total number of ways can 1st and 2nd place be awarded = (8)×(7)

=56.

Learn more about permutation here:

https://brainly.com/question/2295036

#SPJ2

The Earth revolves around the Sun one year. How many
weeks, days, hours, minutes, and seconds are in a year?

Answers

Answer:

Weeks = 52

Days = 365

Hours = 8,760

Minutes = 525,600

Seconds = 3.1536 × 10^7

Step-by-step explanation:

Answer:

1 Year =

31540000 seconds.

525600 minutes.

8760 hours.

365 days.

52.1429 weeks.

12 months.

Step-by-step explanation:

Hey there!

You can do this by calculating all the numbers since you already know that there are 24 hours in a day, 12 months in a year and 365 days in a year

Help me please this is due tomorrow and I do not understand the assignment

Answers

Answer:

4 and 5 not functions 6 function

Step-by-step explanation:

In a function, each x value can only have one y value. To test this, you can try the vertical line test. Put a vertical line on the function; if it touches only one point the graph is a function. For graph 4, the x value of 3 has y values of 1 and 4 so it is not a function. For graph 5, the x values of 1 and 5 have many y values so the graph isn't a function. For graph 6, each x value has only one y value so it is a function.

Answer:

4. Not a function

5. Not a function

6. Function

Step-by-step explanation:

1 -3 (correct!)

Functions do NOT have repeating x-values. Hence why you were able to determine if # 1-3 are fuctions or not.

4. Not a fuction:

(1, 2)

(2, 3)

(3, 1)

(3, 4)

As we can see, both points have the same x-values. Therefore, not a function.

5. Using our knowledge about functions, we can quickly tell that this graph is NOT a fuction.

There are many points that fall under the same x-value.

6. Function:

(1, 2)

(2, 2)

(3, 3)

(4, 4)

No repeating x-values. Therefore, a function.

Hope this helps!

please please help me

Answers

Answer:

A. 36

Step-by-step explanation:

Right triangle angles in degrees always add up to 180° degrees. In addition, it must have a right angle (hence the name right triangle), which is 90 degrees.

Given the angle in degrees is 54, we can add 90 and 54 and subtract it from 180 to find the missing angle.

[tex]54+90=144[/tex]

Now, subtract from 180.

[tex]180-144=36[/tex]

Therefore, the degrees of the missing angle is 36.

#LearnWithBrainly

Find the standard deviation of the data given below: Ans: 12.03 Class Interval 10-20 20-30 30-40 40-50 50-60 frequency10 12 4 8 6 -20​

Answers

Answer:

•Make sure all words are spelled correctly.

•Try different keywords.

•Try more general keywords.

•Try fewer keywords.

I HOPE IT'S HELP <3

In the figure, m What is the value of X?
A.) 6
B.) 7.2
C.) 4.6
D.) 3.3

Answers

[tex]7x-4=\angle PQS\\\\\implies 7x-4 =38\\\\\implies 7x = 38+4\\\\\implies 7x = 42\\\\\implies x = \dfrac{42}7 \\\\\implies x = 6[/tex]

Answer:

7.2

Step-by-step explanation:

5x+2=38

5x=38-2

x=36/5

x=7.2

Josh ran a two-lap race in 117.92 seconds. He ran the second lap in 59.13 seconds. How long did it take him to run the first lap?​

Answers

Answer:

According to my calculation this is the answer.Hope the picture will help you...

HELP PLEASE!!!! <3


Algebraically find the slope and the y-intercept of 3y - 8 = 2x.

thank you!!

Answers

Answer:

slope = 2/3     y intercept = 8/3

Step-by-step explanation:

re-arrange to slope intercept form    y = mx + b

3y = 2x + 8

y = 2/3 x + 8 / 3  

Answer:

[tex]Slope=\frac{2}{3}[/tex]  

[tex]Y-Intercept=\frac{8}{3}[/tex]

Hope This Helps! :)

41.6%, 15/25, 4.3, 18.4, 1/4 greatest to least
I will mark brainliest and please no links

Answers

Answer:

18.4, 4.3, 0.6, 0.416, 0.25

Step-by-step explanation:

Change all sets to the same value (decimal)

41.6 / 100 (move decimal 2 to the left) =

0.416

15/25 =

0.6

4.3

18.4

1/4 =

0.25

Data:

0.416, 0.6, 4.3, 18.4, 0.25

greatest to least;

18.4, 4.3, 0.6, 0.416, 0.25

If u have 18 gallons of gas an you drove 250 miles how much gas is left

Answers

Answer:

Depends what vehicle is it does it burn alot of gas like pickup trucks or is it a little small Honda Civic

Step-by-step explanation:

Please help! You can do ittt! Offering brainliest+ 20 points!

Answers

Answer:   question 9      is     3/12

Step-by-step explanation:

Please help l just don’t understand new topic

Answers

Perimeter is found by adding all sides. And since you’re given the perimeter just do it backwards. X+x+y+y=48.

Roxanne ran 10.73 miles on Monday and 3.01 miles on Tuesday. How many more miles did Roxanne run on Monday than Tuesday?

Answers

Answer:

7.72 miles

Step-by-step explanation:

Subtract 10.73 and 3.01 to find your answer

Answer:

Step-by-step explanation:

m

someone please help i literally have no idea how to do this

Answers

Answer:

I don't know if this is all the way right but I hope it is.

Step-by-step explanation:

Step 1.

Put the data in order to find the median.

Median = 72

Find the Lower Quartile and the Upper Quartile. These are the medians of the lower and upper halves.

Lower Quartile = 66

Upper Quartile = 79

Next put those points on your number line and mark your smallest and

greatest values, the median, and the Quartiles.

Find the length of the third side. If necessary, round to the nearest tenth
Pythagorean Theorem (Rounding)

Answers

Answer:

3.5

Step-by-step explanation:

Set up the Pythagorean Theorem (a^2 + b^2 = c^2) where the unknown side is x:

2^2 + x^2 = 4^2

4 + x^2 = 16

x^2 = 12

x = ± sqrt(12)

x ≈ 3.5

Note: '^' means "to the power of", so '^2' means "squared"

Students voted to have a guinea pig or a hamster qs a class pet. Of thise students, 18 voted to have a guinea pig. This number represents 72% of the students who voted. What is the toatal number of students who voted

Answers

Answer:

The total number of students that voted is 25.

Step-by-step explanation:

18 students = 72% of the students who voted

Divide the percentage of students by 100.

72% ÷ 100 = 0.72%

Then, divide 18 by 0.72%.

18 ÷ 0.72% = 25

So, the total number of students that voted is 25 students.

Hope this helped !

Please help ASAP

Find all the values of k so that the quadratic expression factors into two binomials. Explain the process used to find the values.

3x^2 + kx - 8

Answers

Answer:

Any value of k

Step-by-step explanation:

The quadratic expression can be factored into two binomials if it has two real roots.

Two real roots possible with non-negative discriminant:

D ≥ 0

As D = b² - 4ac, we get the following inequality

k² - 4(3)(-8) ≥ 0k² + 96 ≥ 0k² ≥ - 96

This is true for any value of k

k ∈ (- ∞, + ∞)

Answer:

(-∞, ∞)  or  [tex]k \in \mathbb{R}[/tex]

Step-by-step explanation:

Binomial:  two terms connected by a plus or minus sign.

Discriminant

[tex]b^2-4ac\quad\textsf{when}\:ax^2+bx+c=0[/tex]

[tex]\textsf{when }\:b^2-4ac > 0 \implies \textsf{two real roots}[/tex]

[tex]\textsf{when }\:b^2-4ac=0 \implies \textsf{one real root}[/tex]

[tex]\textsf{when }\:b^2-4ac < 0 \implies \textsf{no real roots}[/tex]

If a quadratic expression factors into two binomials, it will have two real roots.  Therefore, the discriminant will be greater than zero.

Given quadratic expression:

  [tex]3x^2+kx-8[/tex]

[tex]\implies a=3, \quad b=k, \quad c=-8[/tex]

Substitute the values of a, b and c into the discriminant, set it to > 0:

[tex]\implies k^2-4(3)(-8) > 0[/tex]

[tex]\implies k^2+96 > 0[/tex]

As k² ≥ 0 for all real numbers,

[tex]\implies k^2+96 \geq 96[/tex]

Therefore, the values of k are (-∞, ∞)  or  [tex]k \in \mathbb{R}[/tex]

Find the value of X to the nearest tenth.

Answers

Step-by-step explanation:

REFER TO THE ATTACHMENT

HEY IN WHICH CLASS YOU ARE ROSA

Answer:

my answer is 7.5

Step-by-step explanation:

let me know if I'm incorrect

What’s 1+7+6+8+10-12+5+22-4-12+16

Answers

Answer:

The answer to your question is 47

Step-by-step explanation:

You just add and subtract the question the your answer will be 47. Brainly patrol, stop deleting me.

The answer is 72

Step-by-step explanation:

1+7=8

8+6=14

14+8=22

22+10=32

32+12=44

44+5=49

49+22=70

70-4=66

66-12=56

56+16=72

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