Answer/Step-by-step explanation:
7^3 or 7 cubed = 7 x 7 x 7
Expanded form turns a simplified problem back into an equation.
Halla la suma de 3, ocho veces un número, y tres veces el mismo número
Answer:
huh?
Step-by-step explanation:
The weekly salaries of elementary school teachers in one state are normally distributed with a mean of $490 and a standard deviation of $45. If one elementary school teacher is randomly selected, what is the probability that he/she earns less than $450 a week?
Answer:
The probability is [tex]P(X < 450 ) = 0.18703[/tex]
Step-by-step explanation:
From the question we are told that
The mean is [tex]\mu = \$ 490[/tex]
The standard deviation is [tex]\sigma = \$ 45[/tex]
Generally the probability that he/she earns less than $450 a week is mathematically represented as
[tex]P(X < 450 ) = P(\frac{X - \mu }{\sigma} < \frac{450 - 490}{45} )[/tex]
[tex]\frac{X -\mu}{\sigma } = Z (The \ standardized \ value\ of \ X )[/tex]
[tex]P(X < 450 ) = P(Z < -0.8889 )[/tex]
From the z table the area under the normal curve to the left corresponding to -0.8889 is
[tex]P(Z < -0.8889 ) = 0.18703[/tex]
=> [tex]P(X < 450 ) = 0.18703[/tex]
22,389 ÷ 13=??R??
Please add the remainder and answer! I will give brainliest!
Answer:
1,722 R=3 hope this helps
Solve the inequality 3(x+1)<18
Answer:
3(x+1)<18
3x+3<18
3x<15
x<5
Step-by-step explanation:
What is the slope of the line through (-10, 1) and (0,-4)?
Answer:
m=-1/2
Step-by-step explanation:
m=-4-1/0- -10
m=-1/2
Solve the equation 11/15 = w - 8/15
2x + 7y = 28
7x - 2y = 4
Answer:
Step-by-step explanation:
2x. X = 2. H4. 4=22. 7.(2-x) = x+1 mai. شاليها. • -x=x+1. + (3 - 3 x + 1 +. 6-3x = 4x + 4. Bebetto. 2=7x -. - 4-2=34+12. - ý 2=2y+12. +. 3X= 12-X.
3/25 divided by 1/8 please help me with this question I am Wrong
Answer:
.96 or 24/25
Step-by-step explanation:
Hope this helps!
Answer:
24/25
Step-by-step explanation:
3/25 × 8/1
8 × 3/25
3×8/ 25×1
24/25×1
24/25
In the decade between 2001 and 2010, real outlays grew by – %. Total (nominal) outlays are now nearly $– trillion per year, or more than $– per U.S. citizen.
Answer:
37%
$4trillion
$12000
Step-by-step explanation:
Identify the exponential function whose graph is given below
Answer:
f(x)= -7 * 2^x
Step-by-step explanation:
The graph of the function goes through the point (0,−7) and (1,−14), so if f(x)= ab^x, then
f(0)= ab^0 = a
f(1)= ab^1 =ab
a=-7 and ab =-14 so,
b= -14/-7 = 2
thus the function is f(x)= -7 * 2^x
The exponential function y = -7b² is the required function.
What is an exponential function?An exponential function is a function which can be defined as y = aˣ, Where 'x' is a variable and 'a' is a constant.
From the given diagram,
The graph of the function go through the points (0,-7) and (1,-14),
And graph is exponential,
Let y= abˣ (1)
y₀ = a and y₁ = ab
At x=0, y₀ = -7 ⇒a=-7
and ab=-14 ⇒ b= 2
Substitute the value of a and b in equation (1) ,
The function,
y = -7b²
The required function is y = -7b².
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Shonda goes to a restaurant with no more than $15 to spend. She buys a burger that costs
$10.50 and one other item. Write an equation to express how much money Shonda spent at the
restaurant.
Answer:
she has 4.5
and she should´ve got bacon egg and cheese than that burger
Select all true statements, 25 points
Answer:
the first one and the last one
Step-by-step explanation:
Anyone help me with this please:)
Answer:
130 is the answer
Step-by-step explanation:
hope this helps
Ling spent $23.96 on cooking fuel for an upcoming camping trip. If she bought 4 cans of fuel, how much did she pay for each can?
$
Answer:
$5.99 per can of gas
Step-by-step explanation:
$23.96 divided by 4 = $5.99
This means that each can of gas is $5.99.
Answer:
$95.84
Step-by-step explanation:
Each can of Fuel is $23.96 and you want to find out How much she payed for 4. So all you have to do is multiply the given cost($23.96) by the amount of fuel cans(4). 23.96 times 4 give you the answer $95.84.
Solve the equation using the distributive property and properties of equality. Negative 5 (a + 3) = negative 55 14 -8 8 -14
Answer:
11
Step-by-step explanation:
55 divide 5 = 11
11 + 3 = 15
5 × 11 = 55
Find an equation of the line with the given slope that passes through the given point. Write the equation in the form Ax+By=C.
m= - 1/4,(-7,0)
The equation of the line in the form Ax+By=C is _________.
(Simplify your answer. Use integers or fractions for any numbers in the equation.)
Answer:
The equation of the line in the form Ax+By=C is [tex]\mathbf{ x+4y=-7}[/tex]
Step-by-step explanation:
We need to write an equation of line that have slope m= -1/4 and point(-7,0)
We would use slope-intercept form: [tex]y=mx+b[/tex]
where m is slope and b is y-intercept.
We are given slope m = -1/4 but we need to find y-intercept
Finding y-intercept
Using the slope m= -1/4 and point(-7,0) we can find y-intercept (b)
[tex]y=mx+b\\0=-\frac{1}{4}(-7)+b\\0= \frac{7}{4}+b\\b=-\frac{7}{4}[/tex]
Now finding the equation of line having slope m= -1/4 and y-intercept b= -7/4
[tex]y=mx+b\\y=-\frac{1}{4}x-\frac{7}{4}[/tex]
Now converting into form Ax+By=C :
[tex]y=-\frac{1}{4}x-\frac{7}{4}\\y=\frac{-x-7}{4}\\4y=-x-7\\x+4y=-7[/tex]
The equation of the line in the form Ax+By=C is [tex]\mathbf{ x+4y=-7}[/tex]
What value of x makes the equation 5(x - 3) + 2x = 41 TRUE?
Answer: x = 8
Step-by-step explanation: PLEASE GIVEBRAINLIEST IT HELPS ALOT
Answer:
x=8
Step-by-step explanation:
Follow the order of operations to simplify the equation:
5(x-3) +2x=41
Start by multiplying into the parenthesis: 5x-15+2x=41
Combine like terms: 5x+2x-15=41 then simplify: 7x-15=41
Add 15 to both sides: 7x=56
Divide both sides by 7 to get x by itself: x=8
Hope this helps! (^-^)
If f(x) = 4x2 – 3x + 7, what is f(-2)?
Answer:
29
Step-by-step explanation:
Answer:
29
Step-by-step explanation:
Assuming that you meant the first term to be 4x² then you just plug in -2 to all of the x-values in the function
Hi , the answer I choose was wrong , what is the correct answer ? Will choose brainlest so be quick
Answer:
Not congruent
Step-by-step explanation:
Missing angel Q andK
Find f(3) if f(x) = 4x - 10
Multiple choice -
I’ll appreciate it if someone helps
Answer:
2
Step-by-step explanation:
given f(x) = 4x-10
to find f(3), we simply substitute x = 3 into the function:
f(x) = 4x-10
f(3) = 4(3)-10
= 12-10
= 2
Answer:
2
Step-by-step explanation:
Since f(3), replace all the x's with 3s
f(3) = 4(3) - 10
The range of both functions will be ?
A)the set of natural numbers
B)the set of integers
C)all real numbers
D)the set of whole numbers
E)the set of rational numbers
Answer:
it is b
bbbbbbb!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Step-by-step explanation:
15
The length of a plane is 19.2 metres.
Lukas buys a scale model of the plane.
The scale of the model is 1:24
Work out the length of the scale model of the plane.
Give
your answer in centimetres.
Answer:
[tex]Model = 80cm[/tex]
Step-by-step explanation:
Given
[tex]Length = 19.2\ m[/tex]
[tex]Scale=1:24[/tex]
Required
Determine the scale measurement in centimeters
The scale can be represented as: [tex]Model : Actual[/tex]
[tex]Scale = Model : Actual[/tex]
Substitute 19.2 for Actual Length
[tex]Scale = Model : 19.2\ m[/tex]
Represent as a fraction
[tex]Scale = \frac{Model}{19.2m}[/tex] --- (1)
Recall that:
[tex]Scale=1:24[/tex]
Represent as a fraction
[tex]Scale = \frac{1}{24}[/tex] --- (2)
Equate (1) & (2)
[tex]\frac{Model}{19.2m} = \frac{1}{24}[/tex]
Multiply through by 19.2m
[tex]Model = \frac{1}{24} * 19.2m[/tex]
[tex]Model = \frac{ 19.2m}{24}[/tex]
Convert to centimeter
[tex]Model = \frac{ 19.2 * 100cm}{24}[/tex]
[tex]Model = \frac{ 1920cm}{24}[/tex]
[tex]Model = 80cm[/tex]
Hence, the length of the scale model is 80 cm
SOLVE FOR X BRO'SSSS
Answer:
C) x = -2
Step-by-step explanation:
We just subtract, -19 + 7 = -2
SOMEONE PLEASE HELP WITH MY MATH ON MY ACCOUNT PAGE
Answer:
Ok! :)
Step-by-step explanation:
[image above]
i specifically need help with c & e.
Answer:
c : 2h-5
e: (4x - 3)/6 +5
Step-by-step explanation:
is 9pi > 27 a true inequality?
Is weekly wage considered to be quantitive data or categorical data?
Answer:
Quantitative data
Step-by-step explanation:
Data that can be represented in digits are referred to as quantitative data while data that are in categories or grouped are referred to as categorical data.
A breakdown is:
Quantitative-> Digits e.g. 20, 45
Categorical -> Groups and categories e.g. sex, level, etc.
We understand that weekly wage is represented in digits.
e.g.
The weekly wage of A factory worker is $500.......
From the above example, the wage ($500) is expressed in digits.
The analysis above shows that weekly wage is a quantitative data.
A person places $308 in an investment account earning an annual rate of 2.1%,
compounded continuously. Using the formula V = Pert, where V is the value of the
account in t years, P is the principal initially invested, e is the base of a natural
logarithm, and r is the rate of interest, determine the amount of money, to the
nearest cent, in the account after 18 years.
Answer: 449.48
Step-by-step explanation:
The amount of money in the account after 18 years will be $449.5.
What is compound interest?Compound interest is the addition of interest to the principal sum of a loan or deposit. Mathematically -
[tex]$A = P(1 + \frac{r}{n})^{nt}[/tex]
where -
[A] = final amount
[P] = initial principal balance
[r] = interest rate
[n] = number of times interest applied per time period
[t] = number of time periods elapse
Given is that a person places $308 in an investment account earning an annual rate of 2.1%, compounded continuously.
We have the expression for compounding as -
V = P[tex]$e^{rt}[/tex]
V = 308 x [tex]$e^{(0.021)(18)}[/tex]
V = 308 x [tex]$e^{0.378}[/tex]
V = 449.5
Therefore, the amount of money in the account after 18 years will be $449.5.
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What number am I? I am three digits long. My hundreds digit is an odd number. My tens and ones digit are a multiple of 5. All of my digits equal 16.
Answer:
925
Step-by-step explanation:
I think ;)
what is the value of y when x=2y +4
Answer:
y = x/2 + 4
Step-by-step explanation:
x = 2y + 4
divide 2 + 4 on both sides in order to isolate y by its self.
x/2 + 4 = 2y + 4/2 + 4
x/2 + 4 = y
y = x/2 + 4