Answer:
Variance= (Standard deviation)^2=
✓6.25=Standard deviation
✓(625/100)= Standard deviation
25/10= Standard deviation
2.5= Standard deviation
Step-by-step explanation:
How many terms are in the expression (7*4) - 3x + x/5?
Answer:
(7*4) , -3x , x/5
Step-by-step explanation:
terms are sperated by plus and minus sign
What is the surface area?
Answer:
369 m²
Step-by-step explanation:
Area of Triangle (sides): 1/2bh
=1/2(bh)
=1/2 (9•16)
=1/2 (144)
=72
There are four sides of the prism:
72•4=288
Area of Square (base): l•w
=9•9
=81
Surface Area = 288+81=369 m²
Answer:
369 m²
Step-by-step explanation:
Which of the following is not a correct statement about
the pie chart?
More students have hazel eyes than blue.
Most of the students in the class have brown eyes.
More students in the class have blue eyes than
hazel.
O The fewest number of students have gray eyes.
Answer:
More students have hazel eyes than blue.
Step-by-step explanation:
Answer:
Step-by-step explanation:
7 pipes fill a tank in 50 minutes. How many minutes does it take if there are 11 pipes?
Give your answer to the nearest minute.
Answer: With 11 pipes, you need 31.82 minutes to fill the tank.
Step-by-step explanation:
Let's define R as the rate at which one single pipe can fill a tank.
We know that 7 of them can fill a tank in 50 minutes, then we have the equation:
7*R*50min = 1 tank
Whit this equation, we can find the value of R:
R = 1 tank/(7*50min) = (1/350) tank/min.
Now that we know the value of R, we can do the same calculation but now with 11 pipes.
Then the time needed to fill the tank, T, is such that:
11*(1/350 tank/min)*T = 1 tank
We need to isolate T.
T = 1 tank/(11*(1/350 tank/min)) = 31.82 min
With 11 pipes, you need 31.82 minutes to fill the tank.
The perimeter of a yard is 60 meters. The length is six less than twice the width. What are the dimensions of the yard?
Length = 18 meters,
Width = 12 meters
B
Length = 36 meters,
Width = 24 meters
C
Length = 24 meters,
Width = 36 meters
D
Length = 12 meters,
Width = 18 meters
Answer:
Length = 18 meters,
Width = 12 meters
Step-by-step explanation:=
Step one:
given data
perimeter= 60 meter
let the width be x
W=x
L=(2x-6)
Step two:
we know that perimeter of a rectangle is given as
P=2W+2L
60=2x+2(2x-6)
60=2x+4x-12
60=6x-12
collect like terms
6x= 60+12
6x=72
divide both sides by 6
x=72/6
x=12
Width is 12m
from L=(2x-6)
L=2*12-6
L=24-6
L=18m
Question
7(-3)=
Plz need help
Answer:
its -21
Step-by-step explanation:
its -21 because 7 x 3 is 21 but it's a -3 so -21
what is the slope of the line please help khan academy??
Answer: The answer is -3
Step-by-step explanation:
The graph goes down 3 and over 1, since slope is written rise/run, it would be -3/1, which reduces to -3
The number -√44 is between which 2 integers.
Answer:
- 5 and - 7
Step-by-step explanation:
-√44 = -6.63
Can somebody please help with this? (Slope)
Answer:
the slope is m= 5/31 :)
The card is a two given that it is black. What is the probability ( the standard deck is 52 cards)
6m - 3p + 10 when m = 6, p = 4
Answer:
The answer is 58.
Step-by-step explanation:
Plug in and Solve.
[tex]6m - 3p + 10 \\ 6(6) + 3(4) + 10 \\ 36 + 12 + 10 \\ 48 + 10 \\ 58[/tex]
Answer:
[tex]6m - 3p + 10 \\ when \: m = 6 \\ \: \: \: \: \: \: \: \: \: p = 4 \\ = 6(6) - 3(4) + 10 \\ = 36 - 12 + 10 \\ = 24 + 10 \\ = 34[/tex]
This should be easy
Answer:
69
Step-by-step explanation:
it's the holy number jesus christ can confirm
Answer:4
Step-by-step explanation:
You draw a card from a standard deck of cards three
times. What is the probability that you draw a spade,
then a red card, and then a face card (Jack, Queen, King)
with the following conditions. (Leave answers as fractions
in reduced form)
WITHOUT REPLACEMENT OF CARD
Answer:
yasssssss queen/king
Step-by-step explanation:
A data set has a mean of 42 and a standard deviation of 7.8 if an element in the set is 54 find its z-score
Answer:
mean=42
SD=7.8
X=54
Z=(X-u)/SD
Z=(54-42)/7.8=12/7.8
=1.54
Where you include squares in the flow chart parallelogram, rectangle, quadrilateral
Answer:
yes
Step-by-step explanation:
it has 4 sides and thoes shapes heve sharp sides like a square
8. Have you ever heard the word tithe? It means a tenth or 10%. Leviticus 27:30 reads, "A tithe of
everything from the land, whether grain from the soil or fruit from the trees, belongs to the LORD;
it is holy to the Lord." Therefore, we see in the previous question that Nick's youth group was
able to save more than 10% and in return they donated the money. In your opinion, why does
God require us to give 10% back to Him and what does that look like for you?
I
Rubric and grade:
Your final grade will be calculated based on the score from the rubric below using the following formula:
Your grade - Total points + 35 x 100
Equations
Table
Question 4
Question 5
Question 6
Question 7
Question 8
Ruby misses 4% of the free throws she attempts in a season. How many total free throws did she attempt if she missed 46?
Whats 6 X 1 X + 5 X 1/10 in standard form and someone pls
Natalie sawed five boards of equal length to make a stool. Each was 9 tenths of a meter long. What is the total length of the boards
she sawed?
PLS HELP
Clas...
Freddy Jose AM-F...
11. Kelsey's garden on her farm was originally 20 feet long and 4 feet wide. She added
an addition onto her garden that was 12 feet long and 6 feet wide. If she wants to
use 100 square feet of the gardens total area to plant vegetables and the rest of the
area to plant fruits, how much space of the garden will the fruit plants take up?
Answer:
So, the original space of her garden was 20ftl + 4ftw. This makes her garden have a starting area of 80ft.
She then adds another 72ft (12ftl x 6ftw) which brings the total area to 152ft.
We have 152ft to work with here, if she wants to use 100 of those ft for vegetables, and the rest to plant fruits, we have to subtract 100 from 152 which gives us 52.
Answer:
The Fruits will take up 52ft of land.
Hope this helped!
Here is a rate: 12 feet in 3 hours.
Find the unit rate:
feet per hour
Answer:
4
Step-by-step explanation:
12 feet divided by 3 hours is 4
Answer:
4 feet per hour
Step-by-step explanation:
12 feet in 3 hours
12/3 = 4
4 feet in 1 hour
What is the common ratio for the geometric sequence?
54, 36, 24, 16, ...
Answer:
-1.5
Step-by-step explanation:
a geometric sequence goes from One term the next by multiplying or dividing.
5. Write the expression in standard form: -2(4x) + 6(8x)
Check and see if both are equivalent using x = 2
Determine the x- and y- intercepts for the graph defined by the given equation.
Y = 7x + 3
a. x-intercept is (3,0) y-intercept is (0,-3/7)
b. x-intercept is (-3/7,0 y-intercept is (0,3)
c. x-intercept is (0,-3/7) y-intercept is (0,-3/7)
d. x-intercept is (3,0) y-intercept is (-3/7,0)
a.
b. (correct answer)
c.
d
d.
Please select the best answer from the choices provided
Answer:
B. is the correct answer.
Step-by-step explanation:
Answer:
B. x-intercept is (-3/7,0) y-intercept is (0,3)
Step-by-step explanation:
I calculated logically
Suppose you have a $15 coupon that can be used on any purchase over $100 at your favorite clothing store. The discounted price of a sports jacket is $203. What is the retail price of the jacket?
a.
$235.70
b.
$303.00
c.
$188.00
d.
$218.00
rv=1/c+r solve for c
I know the answer I'm confused as to how to get there
Answer:
rv=1/2
Step-by-step explanation:
Answer:
See below
Step-by-step explanation:
Given
rv=1/c+rSolving for c
Its not clear what the denominator is: c or c+r so doing bothDenominator is c:
rv = 1/c + r1/c = rv - rc = 1/(rv - r)Denominator is c + r:
rv = 1/(c + r)rv(c + r) = 1rvc + r²v = 1rvc = 1 - r²vc = (1 - r²v)/rvor more simplified
c = 1/rv - rNote. If you know the answer it should help how to get it
[tex](2x {}^{4} - 18x ^{2} + 3x - 4) \div (x ^{3} - 3x {}^{2} - 2)[/tex]
Answer:
(2x⁴-18x²+3x-4) = (2x+6)(x³-3x²-2) + (7x+8) .... remainder 7x+8
Step-by-step explanation:
(2x⁴-18x²+3x-4) = (2x+6)(x³-3x²-2) + (7x+8) .... remainder 7x+8
Use long division method
Wyatt is saving up to buy a new bicycle. He already has $60 and can save an
additional $6 per week using money from his after school job. How much total money
would Wyatt have after 6 weeks of saving? Also, write an expression that represents
the amount of money Wyatt would have saved in w weeks.
Answer:
Expression: 6w+$60 Money: $99
Step-by-step explanation:
So, let's find the ammount for 6 weeks
We know he can make $6 per week, so we ned to multiply 6*$6 to get your answer
So, 6 ( weeks ) * 6 ( dollars) = $36 for 6 weeks
Then, we ned to add the $60 he already has saved up, so $60+$39=$99
For the equation, We know that we need to multioply the number of weeks by 6, as shown by how we solved the last problem
So, 6*w=6w
Then we need to add $60
So, we get 6w+$60 for the expression
Answer:
96
Step-by-step explanation:
A quality control inspector has drawn a sample of 19 light bulbs from a recent production lot. If the number of defective bulbs is 1 or less, the lot passes inspection. Suppose 30% of the bulbs in the lot are defective. What is the probability that the lot will pass inspection
Answer:
0.0016283
Step-by-step explanation:
Given that:
Proportion of defective bulbs, p = 30% = 0.3
Sample size, n = 19 bulbs
Probability that the lot will pass inspection :
P(none of the 19 is defective) Or P(only one of the 19 is defective)
P(none of the 19 is defective) = (1 - p) ^n = (1 - 0.3)^19 ; 0.7^19
0.7^19 = 0.0011398
P(only one of the 19 is defective) :
P(1 defective) * P(18 not defective )
(0.3) * (1 - 0.3)^18
0.3 * 0.7^18
0.3 * 0.001628413597910449 = 0.0004885
Hence,
P(none of the 19 is defective) + P(only one of the 19 is defective)
0.0011398 + 0.0004885) = 0.0016283
The school cafeteria sells two types of wraps vegetarian and chicken the vegetarian wrap costs $1.00 and the chicken wrap costs $3.40 today they made $266.20 from the 103 wraps sold how many wraps sold were vegetarian
Answer:
35
Step-by-step explanation:
Let's make a system of equations for the vegetarian and chicken wraps; one for the total cost of them and one for the total amount sold.
Vegetarian wraps will be represented by variable v and chicken wraps will be represented by the variable c.
v + 3.40c = 266.20 v + c = 103Subtract these equations.
2.40c = 163.20Divide both sides by 2.40.
c = 68Substitute this value for c into the second equation.
v + (68) = 103Subtract 68 from both sides.
v = 35The number of vegetarian wraps sold amounted to 35 in total.
Answer :
The school cafeteria sold 35 vegetable wraps.Step-by-step explanation:
Let the count of vegetarian wraps be xLet the count of chicken wraps be y.Then for the count we have :
→ count of vegetarian wraps + count of chicken wraps = 103
→ x + y = 103......[Equation (i)]
Then for the cost we have :
→ ❲$1.00 * x❳ + ❲$3.40 * y❳ = $266.20
Dropping the dollar signs we get :
→ ❲1.00 * x❳ + ❲3.40 * y❳ = 266.20
→ x + 3.40y = 266.20.....[Equation (ii)]
Substracting equation (i) from equation (ii) we get :
→ 0 + 2.4y = 163.2
→ 2.4y = 163.2
→ y = 163.2 ÷ 2.4
→ y = 68
Now, subsitute the value of y = 68 in equation (i) we get :
→ x + y = 103
→ x + 68 = 103
→ x = 103 - 68
→ x = 35
Hence, the school cafeteria sold 35 vegetable wraps.