Answer:
11.1%
Step-by-step explanation:
2/18 = 11.1%
Is this list of numbers an arithmetic sequence?
18,16,14,12,10,…
Answer:
YesStep-by-step explanation:sequence of numbers such that the difference between the consecutive terms is constant.
the constant is 2 (Ex. 18-2=16-2=14....) and your answer is
yes
i attached my questions thx
Answer:
Answer:
1. x15 (a)
2. 1/x15 (b)
Step-by-step explanation:
multiply exponents
simplify expression
Step-by-step explanation:
A group of 5 friends is shering 2 pounds of trail mix .Write a division problem and a fraction to represent this situation
Answer:
Division problem - 2/5
Fraction - 2/5
Step-by-step explanation:
The answer is the same because in mathematical situations, division and fraction is considered same.
Jose needs 6.2 lb of organic blueberries to make smoothies. Organic blueberries are on sale for $2.85 per pound. Jose estimates that he will need $12 to buy the 6.2 lb of blueberries. What is Jose’s error?
1. Jose did not make an error. His estimate of $12 is correct.
2. Jose incorrectly rounded $2.85 down to $2. The estimate should be $18.
3. Jose incorrectly rounded 6.2 up to 7.
4. Jose incorrectly multiplied 2 and 7. The estimate should be $14.
Answer: Jose incorrectly rounded $2.85 down to $2. The estimate should $18.
Step-by-step explanation:
lol i had this question
HELP ME PLEASE
7. When Mrs. Santo lived in China, temperature was measured in Celsius. She constantly had to convertir
Celsius to Fahrenheit until she started learning Celsius temperatures and how warm they are.
The formula to convert from Celsius to Fahrenheit is F = = C) + 32
The mean temperature for one month was 34°C and the standard deviation was 2.27.C. Applying what
know about multiplying by a constant and adding a constant, what was the mean and standard deviation
Fahrenheit? Be sure to show your work for both the mean and the standard deviation.
Answer:
Mean: [tex]93.2\; \rm ^{\circ} F[/tex].
Standard deviation: [tex]4.086\; \rm ^{\circ} F[/tex].
Step-by-step explanation:
Consider a random variable [tex]X[/tex] with mean [tex]\overline{X}[/tex] and variance [tex]{\rm Var}(X)[/tex].
If a random variable [tex]Y[/tex] is obtained by linearly transforming [tex]X[/tex] for some constants [tex]m \ne 0[/tex] and [tex]b[/tex], then the mean of [tex]Y\![/tex] would be:
[tex]\overline{Y} = m\, \overline{X} + b[/tex].
[tex]\mathrm{Var}(Y) = m^{2} \, \mathrm{Var}(X)[/tex].
The standard deviation of a random variable is the square root of its variance. Therefore, the standard deviation of [tex]Y[/tex] would be:
[tex]\begin{aligned}\mathrm{SD}(Y) &= \sqrt{\mathrm{Var}(Y)} \\ &= \sqrt{m^{2}\, \mathrm{Var}(X)} \\ &= m\, \sqrt{\mathrm{Var}(X)} \\ &= m\, \mathrm{SD}(X)\end{aligned}[/tex].
In this question, the random variable [tex]F[/tex] is obtained by linearly transforming [tex]C[/tex] using the constants [tex]m = (9/5)[/tex] and [tex]b = 32[/tex]. That is:
[tex]F = (9/5)\, C + 32[/tex].
It is given that mean [tex]\overline{C} = 34[/tex] while standard deviation [tex]\mathrm{SD}(X) = 2.27[/tex]. The mean and standard deviation of [tex]F[/tex] obtained from the linear transformation would be:
[tex]\begin{aligned}\overline{F} &= m\, \overline{C} + b \\ &= (9/5) \times 34 + 32\\ &= 93.2\end{aligned}[/tex].
[tex]\begin{aligned}\mathrm{SD}(F) &= m\, \mathrm{SD}(C) \\ &= (9/5) \times 2.27 = 4.086\end{aligned}[/tex].
Thus, when measured in degrees Fahrenheit, the corresponding mean would be [tex]93.2\; \rm ^{\circ} F[/tex] and and standard deviation would be [tex]4.086\; \rm ^{\circ} F[/tex].
Factoring with Diagrams
A(x) = x3 – 7x² – 16x +112, You know that
(x-7) is a factor.
x-
х
+3
-7
-72
Check your work
Write A(x) as the product of linear factors.
Answer:
(x - 7)(x - 4)(x + 4).
Step-by-step explanation:
A(x) = x3 – 7x² – 16x +112
Dividing by x-7:
x^2 - 16 <-------- Quotient
-----------------------------
x-7)x^3 - 7x^2 - 16x + 112
x^3 - 7x^2
0 - 16x + 112
- 16x + 112
..............
so A(x) = (x - 7)(x^2 - 16) x^2 - 16 is the difference of 2 squares so we have:
(x - 7)(x - 4)(x + 4).
Checking by expanding the brackets:
(x - 7)(x - 4)(x + 4)
= x(x - 4)(x + 4) - 7(x - 4)(x + 4)
= x(x^2 - 16) - 7(x^2 - 16)
= x^3 - 16x - 7x^2 + 114
= x^3 - 7x^2 - 16x + 112
Three less than 4 times a number is equal to 12 more than seven times the number. What is the number?
Answer:
-5
Step-by-step explanation:
4x-3 = 7x+12
Subtract 12 from each side4x-15 = 7x
Subtract 4x from each side-15 = 3x
Divide each side by 3-5 = x
Rewrite using symmetric propertyx = -5Three children's tickets to the circus cost
$53.85. Two adult tickets to the circus
cost $63.90. How much more does
1 adult ticket cost than 1 children's ticket?
Answer:
$14
Step-by-step explanation:
53.85 divided by 3 is 17.95
63.90 divided by 2 is 31.95
31.95-17.95=14
Answer: $14
Step-by-step explanation:
First find out how much each child's ticket costs. 53.85/3 = 17.95. Then find of the same thing for an single adult ticket. 63.90/2 = 31.95. Finally we subtract both numbers 31.95-17.95= 14 dollars. Thats your answer
PLEASE HELP RN, I need a lot of help on this very hard math homework
Answer:
[tex]6^{2}[/tex]
Step-by-step explanation:
Use power rules.
[tex]\frac{6^{7} }{6^{5} }[/tex]
[tex]6^{7-5}[/tex]
[tex]6^{2}[/tex]
Another way of solving in which the 6s on the numerator cancel with the 6s on the denominator:
[tex]\frac{6*6*6*6*6*6*6}{6*6*6*6*6}[/tex]
[tex]\frac{6*6}{1}[/tex]
6*6
[tex]6^{2}[/tex]
Explain why x2+7x+4=7x has no solutions.
[tex]x^2+7x+4=7x[/tex]
[tex]x^2+4=0[/tex]
[tex]x^2=-4[/tex]
Square of any real number cannot be negative because - * - = + so this equation has no solutions
Three cars are for sale.
Car A
£14240
Car B
£15870
Car C
£11 690
The price of each car is rounded to the nearest £100.
Which price changes by the greatest amount?
You must show your working.
+
+
Answer:
car B
Step-by-step explanation:
i used my brain
The total cost in dollars, c, to purchase video games online can be found using e function c = 16.95x + 4.75, where x is the number of video games purchased. If at least 4 games but no more than 7 games are purchased online, what is the range of the function for this situation?
Answer:
72.55 ≤ x≤ 123.40
Step-by-step explanation:
c = 16.95x + 4.75,
We have to purchase a minimum of 4 games
Let x = 4
c (4) = 16.95(4) + 4.75
c(4) =67.8+4.75 = 72.55
This is the smallest amount we will spend
The most we will purchase is 7 games
Let x = 7
c (7) = 16.95(7) + 4.75
c(7) =118.65+4.75 = 123.40
This is the largest amount we will spend
The range is
72.55 ≤ x≤ 123.40
what is the midpoint of 0.1 and 0.2
The answer is definitely 0.15
Select the correct answer. The difference of a number and 6 is the same as 5 times the sum of the number and 2. What is the number? Р-4 B. -2 C.-1 D. 1 ​
Answer:
n = 1
Step-by-step explanation:
n - 6 = 5(n-2)
n - 6 = 5n - 10
-6 +10 = 5n - n
4 = 4n
n = 4/4
The student council at Spendtoomuch High School is planning a school dance. The table below shows the budget for the dance.
School dance budget
Item Funds raised Expenses
Dance tickets
$
300
$300dollar sign, 300
DJ Denny
$
−
250
$−250dollar sign, minus, 250
Decorations
$
−
100
$−100dollar sign, minus, 100
What is the student council's expected profit?
Answer:
-$50.00
Step-by-step explanation:
Graph the equation.
y = |x – 11 – 2
Answer:Correct option is
A
10
Given y=(x−11)
2
⇒y=x
2
−22x+121
After substitute y=25. we get,
x
2
−22x+121−25=0
⇒x
2
−22x+96=0
⇒(x−16)(x−6)=0
⇒x=16,x=6
∴ two points are A,B are (16,25),(6,25).
Distance between A and B is
(16−6)
2
−(25−25)
2
=10
Hence, option A is correct.
Sadie is doing weekly payroll for her employees at her car dealership. Her employees make a base salary plus commission. The function LaTeX: E(x)=\mid 5- \frac{6x}{2}\mid models the way Sadie calculates the commission where x represents the number of cars the employee sells. If one of her employees sells 7 cars, how much commission will they make?
The commission function is an illustration of the absolute functions
The commission for the sales of 7 cars is 16
The function is given as:
[tex]\mathbf{E(x)=\mid 5- \frac{6x}{2}\mid}[/tex]
When an employee sells 7 cars, we have:
x = 7
So, the equation becomes
[tex]\mathbf{E(x)=\mid 5- \frac{6\times 7}{2}\mid}[/tex]
Simplify
[tex]\mathbf{E(x)=\mid 5- 3\times 7\mid}[/tex]
[tex]\mathbf{E(x)=\mid 5- 21\mid}[/tex]
Simplify
[tex]\mathbf{E(x)=\mid- 16\mid}[/tex]
Remove absolute brackets
[tex]\mathbf{E(x) = 16}[/tex]
Hence, the commission for the sales of 7 cars is 16
Read more about absolute functions at
https://brainly.com/question/1389494
*IM CONFUSED??? HELP ME PLEASEE !! , MAKE SURE ITS THE CORRECT ANSWER ITS FOR AN ASSESSMENT ! *
Answer:
First option: y = 5/6x + 12
Step-by-step explanation:
In the slope-intercept form, y = mx + b:
m = represents the slope
b = represents the y-coordinate of the y-intercept, (0, b).
In your given question, it states that the slope (m) = 5/6, and the y-intercept is (0, 12). This means that the value of (b) for your linear equation is the y-coordinate of (0, 12). Therefore, the correct answer is:
y = 5/6x + 12
The graph of a linear function f passes through the point (3, -10) and has a slope of -5. What is the zero ?
A. 1
B. -1
C. 5
D. -5
I really need help
Answer:
C
Step-by-step explanation:
i did it already
how fast do you have to go travel the speed of light
Answer:
About 186,000 miles per second.
Step-by-step explanation:
pls answer i will give u brainlist, FAST AND PLS WRITE THE STEPS HAS TO BE SHORT PLSSSSSSS
Answer:
velosity= distance ÷ time
Step-by-step explanation:
[tex]3 \times \frac{2}{5} \div \frac{2}{3} = \\ \frac{17}{5} \times \frac{3}{2} = \frac{51}{10} = 5.1[/tex]
ok i have 2 questions first one, is 12.01 larger than 11.999? second question is 0.57 equal to 0.573?
Answer yes, no
Step-by-step explanation:
for number one, 12.01 and 11.999 are being compared
let’s start by looking at the non decimal digits
12 is bigger than 11, so we can assume that anything bigger than 12 is less than anything less than twelve, so the answer is yes
for number two, they are 2 different numbers, so they are not equal
In the sequence 2, 8, 16, 64, 256, 1024 what is the fourth term?
Answer:
64 is the fourth term
Step-by-step explanation:
Note : -
First term : 2
Second term : 8
Third term : 4
Fourth term : 64
Fifth term : 256
Sixth term : 1024
Solve the equation below for y in terms of x.
(Slope Intercept Form, y = mx + b)
2y - 3x = 7
if the breadth of rectangle in one fourth of its length and perimeter is 60 cm ,find the length and breadth of rectangle
Answer:
Breadth/width = 1.936cm, length = 7.746cm
Step-by-step explanation:
Perimeter of a rectangle would be [tex]2L*2W=60cm[/tex] in this case. Breadth is width.
But we can rewrite this equation given that the width is 1/4 the length. This means 4 of the widths would equal one length.
[tex]W=\frac{1}{4}L[/tex]
[tex]L=4W[/tex]
We can substitute L with the 4W
[tex]2(4W)*2(W)=60cm[/tex]
Now we can just solve for the width W.
[tex]8W*2W=60\\16W^2=60\\W^2=\frac{15}{4} \\W=\sqrt{\frac{15}{4} } \\W=\frac{\sqrt{15} }{2}=1.936cm[/tex]
We now know the width is about 1.936cm
We can find the length given our formula before of [tex]L=4W[/tex]
[tex]L=4(\sqrt{\frac{15}{2} } )=2\sqrt{15} =7.746cm[/tex]
So the breadth/width is 1.936cm and the length is 7.746cm.
please help!! i will give a thanks and brainliest !
Answer:
19. is 18
31. is 10y-x
Step-by-step explanation:
thats only what i know sorry
3(-2x-4y)-4(6y-x)
simplify
Answer:
Simplify the expression.
12xy−72yexponent 2 -6x
Step-by-step explanation:
got it from mathaway
A train leaves Zurich at 2240 and arrives in Vienna at 07 32 the next day. Work out the time taken.
The answer is 8 hours 32 minutes
But can someone properly explain how
Step-by-step explanation:
Okay so, 22:40 is 10:40pm
07:32 is am
Time goes up to 60 minutes, it would be 52 minutes at the end(20m to get to 11pm + the 32minutes)
Then there would be 8 hours alone (11 to 7 is 8 hours)
So it takes 8 hours and 52 minutes from 10:40pm to 7:32am
ALRIGHTY I NEED HELP AGAIN! YOU'LL GET BRAINLIEST IF YOU'RE CORRECT!
Step-by-step explanation:
third quadrant ( option C) is the correct answer.
hope this helps you.
Answer:it’s B cutie
Step-by-step explanation:
4x=8 99999999999999999999999999999999999999999
Answer:
x=2
Step-by-step explanation:
Answer:
X =2
Step-by-step explanation:
4X=8
X=8/4
X=2
