Answer:
[tex]\boxed {\boxed {\sf z=2.8}}[/tex]
Step-by-step explanation:
The z-score helps describe a value's relationship to the mean. It tells us how many standard deviations a value is from the mean. The formula is:
[tex]z= \frac{x- \bar x}{s}[/tex]
where x is the value, x-bar is the mean, and s is the standard deviation.
We know the data set has a mean of 25 and a standard deviation of 5. The value we are finding the z score for is 39.
x= 39 x-bar= 25 s=5Substitute the values into the formula.
[tex]z= \frac{ 39-25}{5}[/tex]
Solve the numerator.
[tex]z= \frac{ 14}{5}[/tex]
[tex]z=2.8[/tex]
The z-score for 39 is 2.8. This means a value of 39 is 2.8 standard deviations greater than the mean.
7th Grade triangle measurements
Answer:
ummmmmm....post the pic at least
Find the area of the polygon
I would like all 3 answers and how to get them (show work).
Thanks!
Answer:
1. 180
2. 52
3. 288
Step-by-step explanation:
The area of a rectangle can be found by multiplying the length by the width, so the area of the rectangle is 15 * 12 = 180. The area of a triangle can be found by multiplying the base by the height and divide by 2, so the area of the triangle is [tex]13*\frac{8}{2} = 13 * 4 = 52[/tex]. The area of a parallelogram can be found by multiplying the length and the height, so the area of the parallelogram is 24 * 12 = 288.
Area of the figure!!!
Answer:
A) 51 [tex]m^2[/tex]
Step-by-step explanation:
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A drawer contains 3 red pens, 4 blue pens, and 7 black pens. If you randomly pull
a pen out of the drawer, what is the probability it is blue?
Answer:
i belive the answer is 3/14
Step-by-step explanation:
I could be wrong
Answer:
4/14 or 2/7
Step-by-step explanation:
there are 3 red pens, 4 blue, and 7 black
add those numbers to get the total (14 pens) then take the blue pens (4) to make the fraction 4/14 (4 blue out of 14 pens total). Then simplify the fraction.
CAN SOMEONE HELP MEEEEEEEEEE
Answer:
[tex]c = \sqrt{146} \\ x = 48°[/tex]
a) Create an example of a trinomial that has a degree of 4:
Answer:
4x^4 + 16x^3 + 182x^2 + x + 87
Step-by-step explanation:
Help fill in the blanks ?
Help me please il give brainliest & a thank you plzz
Explain how to find the quotient of 1/4 divided by 5
Answer:
1/20
Step-by-step explanation:
(1/4) / 5
When dividing a fraction by a whole number
multiply the divisor by the number
4 * 5 = 20
(1/4) / 5 = 1/20
Answer:
Convert 1/4 to decimal form, which is 0.25.Divide 0.25 by 5 The quotient is 0.05, or 1/20 in simplified fraction formThere is another way to solve without converting:
Set up equation like this: 1/4 x 1/5 (Use KCF if you know how to divide or multiply by fractions. If you don't, use the first method above)1/4 x 1/5 = 1/20The quotient is 1/20Step-by-step explanation:
Two friends shop for fresh fruit. Jackson buys a watermelon for $7.85 and 5 pounds of
cherries. Tim buys a pineapple for $4.15 and 4 pounds of cherries. Use the variable p to represent
the price, in dollars, per pound of cherries. Write and simplify an expression to represent how much
more Jackson spent.
Answer:
3.67 + p
Step-by-step explanation:
Jackson
7.85 + 5p
Tim
4.15 + 4p
----------------------
How much more jackson spent
(7.82 + 5p) - (4.15 + 4p)
Group like terms
(7.82 - 4.15) + (5p - 4p)
Simplify
3.67 + p
Total earnings S depends on the number t of hours worked. You earn $6 per hour. How much do you earn for working 10 hours?
a. $60
b. $120
c. $30
d. $90
A bag contains 9 marbles: 3 are green, 4 are red, and 2 are blue. Teresa chooses a marble at random, and without putting it
back, chooses another one at random. What is the probability that the first marble is blue and the second is green? Write
your answer as a fraction in simplest form.
Answer:
Probability[First marble blue, second is green without replacement] = 1/12
Step-by-step explanation:
Given:
Number of green marble = 3
Number of red marble = 4
Number of blue marble = 2
Total marble = 9 marble
Find:
Probability[First marble blue, second is green without replacement]
Computation:
Probability of an event = Number of favorable outcome / Number of total outcome
Probability[First marble blue] = 2 / 9
Probability[second is green] = 3 / [9-1]
Probability[second is green] = 3 / 8
Probability[First marble blue, second is green without replacement] = Probability[First marble blue] x Probability[second is green]
Probability[First marble blue, second is green without replacement] = [2/9][3/8]
Probability[First marble blue, second is green without replacement] = 6 / 72
Probability[First marble blue, second is green without replacement] = 1/12
Zoe and Hannah share tips in the ratio 3 : 7
Last week, Zoe received £24
How much did Hannah receive?
Answer:
£ 56
Step-by-step explanation:
3 : 7
Zoe - 24
3x8 = 24
7 x 8 = 56
Hannah received 56.
Fred bought 5 liters of liquid laundry detergent, 5,250 milliliters of fabric softener, and 1.5 liters of bleach. How many liters of liquid did he buy in all?
on a coordinate plane, which point lies on the x-axis?
does anyone know what the answer to this is? I'm so confused
Answer:
d should be correct
Step-by-step explanation:
HELP ME 18x84/5(h)6nnnnn
Answer:
(18x845h)(6)n
=1085hnx84
How do I figure this out?? I don’t get it
Answer:
20
Step-by-step explanation:
To find the perimeter of a shape, you have to add all the sides together. Since this is a square, this means that all the sides are the same. If one side is 5, that means that all the other sides are 5 as well. So you will have to do 5+5+5+5 or 5 x 4.
How many different possible outcomes are there if you spin a spinner labeled Red, Blue, Yellow, Green, Purple four times?
Also, how do I answer these kinds of questions?
The number of different outcomes when the spinner is spun is 625
How to determine the number of outcomes?The given parameters are:
Spinner section, n = 5 i.e. Red, Blue, Yellow, Green, PurpleNumber of spins, r= 4The number of possible outcomes is calculated using:
Outcomes = n^r
So we have:
Outcomes = 5^4
Evaluate
Outcomes = 625
Hence, the number of outcomes is 625
Read more about outcomes at:
https://brainly.com/question/10837034
#SPJ1
Answer:
Step-by-step explanation:
How many different possible outcomes are there if you spin 4 spinners labeled Triangle, Square, Circle, Hexagon?
-7 x -8 = 56 True or False
Answer:
true negative ×negative =positive
Answer:
True
Step-by-step explanation:
n= negative
p= positive
n*n=p
p*p=p
n*p=n
what is the value of y
Answer:
9.81
Step-by-step explanation:
Estimate. 593÷27
please answer fastt
Answer:
22
Step-by-step explanation:
21.962962963
Estimated: 22
Hope it helps plz give brainliest! :D
Find the volume of the figure
I need Answer Immediately!!!!!!
Answer:
86.21
Step-by-step explanation:
simple math you just add it all up then figure the percentage of 75 out of 87
I NEED HELP WITH THIS!! I WILL OFFER BRAINLIEST FOR THE BEST ANSWER! HOWEVER, ANY ABSURD ANSWERS WILL BE REPORTED!!
please help answer the math question below
Answer:
C
Step-by-step explanation:
Solve these simultaneous equations. Use any method you want
2x+y=22
X-y=5
Answer:
by using substuton method
2x=22-y
x=22-y/2 equation (i)
so substuting the value x in x-y=5
22-y/2-y=5
22-y-2y/2=5
22-3y=10
22-10/3=y
12/3=y
4=y
now substitute the value of y in equation (i)
x=22-y/2
=22-4/2
=18/2
=9
therefore ,the value of x is 9 and y is 4
Step-by-step explanation:
A spinner has 4 egual-sized sections labeled A, B, C, and D. It is spun and a fait coin is toad. What is the
probability of spinning "C" and flipping "heads"?
Answer: 1/8
Step-by-step explanation:
4 equal sections
2 coin possibilities
1/4 times 1/2 = 1/8
so 1/8 chance of spinning c and flipping heads
Which of the following represents a null set
Answer:
Empty Set: The empty set (or null set) is a set that has no members. Notation: The symbol ∅ is used to represent the empty set, { }.
Step-by-step explanation:
plss do me brainlest
who wants brainlist and points
Answer:
6 times 10^3
Step-by-step explanation:
You multiply 3 and 2 together and 10^7 and 10^-4 together. 3x2 is equal to 6 and 10^7 times 10^-4 is the same as 10^7-4 which is equal to 10^3. Therefore, the answer is 6 times 10^3.
If this has helped please mark as brainliest
Answer:
the awnser i c
Step-by-step explanation: