Karen scored a 76 on an exam meaning is 74 and one standard deviation of eight. Find her Z score.
Answers
Answer:
0.25
Step-by-step explanation:
(76-74)/8
=2/8
=1/4
=0.25
Related Questions
Round 2,946 to the nearest thousand
Answers
Answer:
3,000
Step-by-step explanation:
Round up when the place value is greater than or equal to 5. 9>5
Answer:
3,000
Step-by-step explanation:
anytime it says round to the nearest thousand you look at the number right of the thousandth , or any number their asking about. if it is 4 and under round down. 5 and up you round up.
Round 15,485,516 to the nearest ten thousands
Your answer
Answers
Answer:my answer is 15,490,000
Step-by-step explanation: cuz that is what rounding does
Angle 3 and angle 4 are supplementary angles angle 3 is 88° what is the measure of angle 4?
Answers
Answer:
92°
Step-by-step explanation:
Supplimentary angle = 180°
So, 180° - 88° = 92°
4 A photographer enlarges a picture to
hang on the wall. The original picture is
5 inches long and 4 wide. The new
picture is 22 inches long and 17.6 inches
wide. What scale factor did the
photographer use?
I
Answers
Answer:
He enlarged the photo by 4.4 times than the original size.
Step-by-step explanation:
22/5=4.4
4.4*4=17.6
4.4*5=22
20 POINTS PLEASE HELP!!!!! Charlie bought hamburgers and drinks for his coworkers. Each hamburger cost $3.75
and each drink cost 50 cents. In total, Charlie paid $25.50 for his order.
Write an equation that represents the relationship between the number of
hamburgers he bought, h, and the number of drinks he bought, d.
Answers
Answer:
3.75h + 0.5d = 25.50
Step-by-step explanation:
3.75h is $3.75 multiplied by h, the amount of hamburgers they buy. same goes for 0.5d it’s 50¢ multiplied by d, the amount of drinks they buy. then both those variables added has to equal $25.50 because that’s how much they spent total.
if you have distance and time how do you find speed?
Answers
Answer:
Divide distance by time.
Step-by-step explanation:
Speed is distance over time. Therefore, dividing distance by time will get you speed.
Answer:
The formula to solve for speed is s=d/t.
Hope this helps you out a bit...have a great day :3
Mr. Smith and Ms. Jones start at the same place.
Mr. Smith drives north for 4 miles. Ms. Jones
drives east for 5 miles. What is the direct distance
between Mr. Smith and Ms. Jones?
A. 18 miles
B. 41 miles
C. 9 miles
D. 41 miles
Answers
Find the least common multiple of 6a2 and 5a3.
Answers
PLS HELP ASAP! FOR BRAINLIEST ANSWER!
Answers
Answer:
The answer is C because they are both equal and they are in the same spot
Step-by-step explanation:
( This is for question number 1)
For number two it’s B) SAS
Answer:
1) C 2) B
Step-by-step explanation:
10 points!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
108cm²
Step-by-step explanation:
3x+x=4x
24÷4x=6
x=6
6×3=18
18×6=108
Sam was asked to place the numbers shown below in order from greatest to least.
5, -0.5, 4, 350%, -13, 4.7, -66, 1.22
ANSWER ASAP
Answers
Answer:
5 > 4.7 > 4 > 350% > 1.22 > -0.5 > -13 > -66
Step-by-step explanation:
Angine and kenny play online video games. Angine buys 1 software package and 2 months of game play. Kenny buys one software package and 4 months worth of game play. Each software package cost $20. If their total cost $142, what is the cost of one month of gameplay?
Answers
Answer:17$
Step-by-step explanation:
Round off the following numbers to 2 significant figures.
156
Answers
Answer:
your answer would be 160
Amy opened a savings account with $1.350 she received for graduation. The account pays 4.3% simple interest. What is the balance after 6 months?
Answers
Your parents love coffee . They purchased a bag of coffee online for 10.99. Since they purchased it online . They received 18% off . What was the sale price
Answers
Explanation: I don’t have one but that’s the right answer
The sum of three consecutive integers is 48. What are the three numbers?
Answers
What three consecutive integers have a sum of 48? Which means that the first number is 15, the second number is 15 + 1 and the third number is 15 + 2. Therefore, three consecutive integers that add up to 48 are 15, 16, and 17.
A circular crop field has an irrigation system in which a pipe, with one end attached to a tower at the center of the field, turns continuously to deliver water. The horizontal distance, in meters, from the tip of the pipe to the farmhouse is represented by y = Equals 400 sine (StartFraction pi Over 8 EndFraction x + pi) + 500, where x represents time in hours.
What does the amplitude of this function represent?
A.the length of the pipe
B.the distance between the tower and the farmhouse
C.the time it takes for the pipe to complete one full circle
D.the difference between the maximum and minimum distances from the tip of the pipe to the farmhouse
Answers
Answer:
It A: the length of the pipe
Step-by-step explanation:
Multiply or divide as Indicated.
x^-8 divided by x^-7
Answers
Answer:
x^1
Step-by-step explanation:
if you divide exponents with the same coefficients, you subtract the two exponents
15 ounces
2.5 servings
Answers
Answer:
6 ounces per serving
Step-by-step explanation:
If you divide 15 ounces by 2.5 servings, you get 6 ounces per serving. I guess this is what you are trying to find, and hopefully it helps!
Please help what Is
1/5 x -9.5
Answers
Answer:
-1.9
Step-by-step explanation:
Hope this helps!
Answer:
-1.9
Step-by-step explanation:
0.2 x -9.5 = -1.9
0.3 ÷ 6.24 show your work, ik im retarted
Answers
Answer:
Below are the steps to take
Order these numbers from least to greatest based on there absolute value
|-2.5|,|-2|,|-2.4|,|-3|
Answers
Answer:
3, 2.5, 2.4, 2
Step-by-step explanation:
Answer:
|-3|,|-2.5|,|-2.4|,|-2|
Step-by-step explanation:
Treat them as if they were all positive numbers .
7x + 3x + 4 - 24 (Given)
10x + 4 = 24 (Simplify)
10x = 20)
x = 2 (Division)
What is the missing reason for the argument shown?
A)
addition.
B)
division
C)
subtraction
D)
multiplication
Answers
Answer:
The missing reason for the shown argument is subtraction.
Step-by-step explanation:
I really need help with this ?
Answers
find the measure of angle J .will mark brainiest
Answers
Answer:
<J=51°
Step-by-step explanation:
3x-2+4x-9+3x-9=180
10x-20=180
10x=200
x=20
<J=3x-9=3(20)-9=60-9=51°
Answer: Angle J = 51°
Step-by-step explanation: All angles add up to 180° in a triangle, so add every angle and set it equal to 180°.
(3x - 2) + (3x - 9) + (4x - 9) = 180
Add like terms:
10x - 20 = 180
Add 20 to both sides:
10x = 200
Divide both sides by 10:
x = 20
Now, plug x into angle J:
3(20) - 9
60 - 9
51
Angle J = 51°
Hope this helps!
Katie has 50 chickens she eats 90% how many chickens are left?
Answers
Find ten percent of 50 by moving the decimal point left once and subtract it from 50
Answer:
First off dang Katie you can eat. And the answer is 5
Step-by-step explanation:
She just gobbling them up like no tommrow
What are inequality? When do we use inequalities?
What type of inequalities are there? Which symbols are used for each type?
Are the following expressions variable inequalities? Why?
a. 13z=27
b. x<0
c 3x+5x>11
d. y+5≤11
e. 7-1>- 32
Answers
Answer:
B,C,D, and E
Step-by-step explanation:
Inequality tells us about the relative size of two values.
Mathematics is not always about "equals", sometimes we only know that something is greater or less than.
Example: Alex and Billy have a race, and Billy wins!
What do we know?
We don't know how fast they ran, but we do know that Billy was faster than Alex:
Billy was faster than Alex
We can write that down like this:
b > a
(Where "b" means how fast Billy was, ">" means "greater than", and "a" means how fast Alex was)
Inequalities: Symbols and Vocabulary
Algebra rules / General Rules:
Isolate a positive x on the left side using algebra
Reverse the inequality sign when mult/divide by a negative
Less than: The symbol that: Looks like an L () for ess than
< ○ ) Points to the Left
● ] Caps the arrow pointing towards smaller numbers
on the number line
Points towards the smaller of two numbers (4 < 7)
> Greater than: The symbol that: Looks like the top of an R ( >
)for GReater than
> ○ ( Points to the Right
● [ Caps the arrow pointing towards larger numbers on
the number line
Open end is by the larger number (7 > 4)
Compound inequalities: usually in the form -4 < x < 4
but can also be x > -4 and x < 4
Maggie bought a pound of bananas and 4 boxes of cereal for $10.11. If each box of cereal cost $2.40, what was the price of a pound of bananas?
$0.51
$0.61
$1.51
$2.91
Answers
Answer:
$0.51
Step-by-step explanation:
If each box of cereal is $2.40, $2.40 multiplied by 4 is $9.60. $10.11 is the total, so $10.11 - $9.60 = $0.51.
Answer:
$0.51
Step-by-step explanation:
the person above me was correct
I really need help with this ?
Answers
Find the polynomial function of degree 3 such that f(2)=24 and x-1, x and x+2 are factors of the polynomial
Answers
Answer:
f(x) = 3x^3 + 3x^2 - 6x.
Step-by-step explanation:
Let:
f(x) = x(x - 1)(x + 2)
= x(x^2 + x - 2)
= x^3 + x^2 - 2x - this might be the answer or it might be some multiple of this.
Now f(2) = 24 so
24 = a(2^3 + 2^2 - 2(2)) where a is a constant.
24 = 8a
a = 3
So the function is
3( x^3 + x^2 - 2x)
= 3x^3 + 3x^2 - 6x.