Answer:
that looks like the directions
Step-by-step explanation:
can you put a screenshot of the problem.
Find the reciprocal for each fraction below.
4/5
4/3
1/5
5
6.
Please hurry it’s missing
Answer:
0.8
Step-by-step explanation:
PLS ASAP I HAVE BEEN UP LATE I NEED HELP!!
Answer:
it’s the second one
Find the domain of the function
f(x)=[tex]\frac{1}{\sqrt{4-x} }[/tex]
write your answer in interval notation.
Answer:
The domain of f is (-∞,4)
Step-by-step explanation:
Domain of a Function
The domain of a function f is the set of all the values that the input variable can take so the function exists.
We are given the function
[tex]f(x)=\frac{1}{\sqrt{4-x} }[/tex]
It's a rational function which denominator cannot be 0. In the denominator, there is a square root whose radicand cannot be negative, that is, 4-x must be positive or zero, but the previous restriction takes out 0 from the domain, thus:
4 - x > 0
Subtracting 4:
- x > -4
Multiplying by -1 and swapping the inequality sign:
x < 4
Thus the domain of f is (-∞,4)
A company uses 3 trucks to deliver a total of T liters of cement. Each truck can transport x liters of cement per trip, and makes a total of y trips.
Write an equation that relates T, x, and y.
Answer: T=3xy
Step-by-step explanation:
Answer:
T=3xy
Step-by-step explanation:
0.83 as a fraction
both 8 and 3 are recurring
Answer:
83/99
Step-by-step explanation:
Answer:
Now it can be seen that x is assumed to be . Therefore, the decimal is equivalent to 5/6. Answer: The decimal is converted to 5/6 as fraction
Step-by-step explanation:
The waiting times on hold for a call to a customer service department are observed to have the following probability distribution:
Number of calls, x Waiting time, minutes, f(x)
0 0
2 3
4 10
6 15
8 10
10 6
The expected value of the waiting time for a random call is most nearly: ________
a. 7.3 minutes
b. 9.2 minutes
c. 11.5 minutes
d. 15.0 minutes
Answer:
b. 9.2 minutes
Step-by-step explanation:
To find the expected waiting time for a random call from the sampie given by using the formula:
[tex]\sum (f(X)) = \dfrac{\sum f (x) \times x}{\sum x}[/tex]
number of calls (x) waiting time f(x) in minutes f(x) *(x)
0 0 0
2 3 6
4 10 40
6 15 90
8 10 80
10 6 60
[tex]\sum x = 30[/tex] [tex]\sum f(x) *x = 276[/tex]
Therefore:
[tex]\sum (f(X)) = \dfrac{276}{30}[/tex]
[tex]\sum (f(X)) = 9.2[/tex]
Solve the equation for x: 1/4x=7
Answer:
x = 28
Step-by-step explanation:
1/4x = 7
x = 7 • 4
x= 28
the division pass to other place to multiplication
The distribution of the amount of money spent by students on textbooks in a semester is approximately normal in shape with a mean of 434 and a standard deviation of 31. According to the standard deviation rule, approximately 99.7% of the students spent between ____$ and ______$ on textbooks in a semester.
Answer:
Hence, approximately 99.7% of students spend between : $341 and $527
Step-by-step explanation:
According to the empirical rule :
99.7% fall within 3 standard deviations from the mean
Given that :
Mean, μ = 434
Standard deviation, σ = 31
μ ± 3σ
μ - 3σ = 434 - 3(31) = 434 - 93 = 341
μ + 3σ = 434 + 3(31) = 434 + 93 = 527
Hence, approximately 99.7% of students spend between : $341 and $527 on textbooks in a semester.
Distributive Property Practice Exercises
Exercises
1.Evaluate each of the expressions below.
c. 18m + 42n and 6(3m + 7n); m=2 and n = 6
Answer:
Yes, it is distributive.
Step-by-step explanation:
A distributive property is a rule that states that, multiplying two factors such as a binomial and trinomial would give the same result as multiplying the sum of two addends by the other factor.
Given the following data;
m = 2
n = 6
For equation 1;
18m + 42n = 18(2) + 42(6)
18m + 42n = 36 + 252
18m + 42n = 288.
For equation 2;
6(3m + 7n) = 6(3*2 + 7*6)
6(3m + 7n) = 6(6 + 42)
6(3m + 7n) = 6(48)
6(3m + 7n) = 288
18m + 42n = 6(3m + 7n) = 288
Therefore, the equation illustrates distributive property.
A bricklayers union charges monthly dues of $3 plus $.18 for each hour worked during
the month. A union member's dues for July were $31.80. How many hours were worked
in July?
Answer:
160 hours
Step-by-step explanation:
y=3+.18(hours)
31.80=3+.18(hours)
28.8=.18(hours)
160=hours
Which expression is the same as 15 of 7? CLEAR CHECK 15×17 5÷7 7÷5 17 of 5
Answer:
15/7
Step-by-step explanation:
15/7
15 of 7 is the same as 15 out of 7, or 15/7
I hope this helps! :)
Express the sum of 1.202 x 10^3 and 3.45 x 10^2 in scientific notation.
Answer:
4.1469 x 10^5
Step-by-step explanation:
multiply the coefficients and add the exponents
1.202 x 3.45 = 4.1469
10³ x 10² = 10^5
f is a differentiable function for all x. Which of the following statements must be true?
a. d/dx ∫ f(x)dx=f(x)
b. d/dx ∫ f(t)dt= - f(x)
c. ∫ f′(x)dx=−f(x)
The limits in the integral of the options are missing. They are :
a). [tex]\frac{d}{dx} \int^2_0 f(x)dx = 0[/tex]
b). [tex]\frac{d}{dx} \int^x_2 f(t)dt = 0[/tex]
c). [tex]$\int^x_2f'(x)dx=f(x)$[/tex]
Solution:
We known that
[tex]$\frac{d}{dx}\int^{g(x)}_{h(x)}f(t)dt = f(g(x))\cdot g'(x)-f(h(x))\cdot h'(x)$[/tex]
a). [tex]\frac{d}{dx} \int^2_0 f(x)dx[/tex]
[tex]$=f(2) \cdot \frac{d}{dx}(2) - f(0)\cdot \frac{d}{dx}(0)$[/tex]
= 0 - 0
= 0
Hence it is true.
b). [tex]\frac{d}{dx} \int^x_2 f(t)dt[/tex]
[tex]$=f(x)\frac{d}{dx}(x)-f(2)\cdot \frac{d}{dx}(2)$[/tex]
[tex]$=f(x) \cdot 1 -f(2)\times 0 $[/tex]
= f(x)
Hence it is true.
c). [tex]$\int^x_2f'(x)dx[/tex]
[tex]$\left[f(x)\right]^x_2 = f(x)-f(2)$[/tex]
[tex]$\neq f(x) $[/tex]
Hence it is false.
Therefore option a) and b). are true.
Which graph represents this system?
y=3
X+y=4
Answer:
The one in the picture is the correct option
PLEASE HELP PLEASEEEEEE
Answer:
The answer is B. Beta Mart
Step-by-step explanation:
First you convert everything to pints. So that would be:
Alpha - 2 pints is $1
Beta - 8 pints is $3
Gamma - 1 pint is $0.54
Delta - 4 pints is $1.86
Then you find the unit rate of each. That would be:
Alpha - 1 pint is $0.50
Beta - 1 pint is $0.375(0.38)
Gamma - 1 pint is $0.54
Delta - 1 pint is $0.465(0.47)
Whichever unit rate is the least (Beta Mart) has the lowest rate. Even though it says ounces, it would still be the same answer.
It is in the picture
Answer:
a 5/2; b. 2.5; c 0.9; d. 90%
Step-by-step explanation:
Factor 15x + 35 using the GCF.
A. 5(3x + 7)
B. 5(3x + 35)
C. 15(x + 2)
D. 7(2x + 5)
Answer:
A
Step-by-step explanation:
What is the equation of the line in slope-intercept form?
Answer:
The equation of the line in slope-intercept form is:
y = -1/6x + 4
Step-by-step explanation:
The slope-intercept form of the line equation
[tex]y = mx+b[/tex]
where
m is the slope b is the y-interceptGiven the points on the line graph
(0, 4) (6, 3)Determining the slope between (0, 4) and (6, 3)
(x₁, y₁) = (0, 4) (x₂, y₂) = (6, 3)Using the formula
Slope = m = [y₂ - y₁] / [x₂ - x₁]
= [3 - 4] / [6 - 0]
= -1 / 6
Thus, the slope of the line = m = -1/6
We know that the value of the y-intercept can be determined by setting x = 0 and determining the corresponding value of y.
From the graph, it is clear
at x = 0, y = 4
Thus, the y-intercept b = 4
now substituting b = 4 and m = -1/6 in the slope-intercept form
y = mx + b
y = -1/6x + 4
Therefore, the equation of the line in slope-intercept form is:
y = -1/6x + 4
What is the total area, in square meters, of the shaded sections of the trapezoid below?
Please
Help test
See the picture
Answer:
Area = 110.88 m²
Step-by-step explanation:
Total area = area of the two triangles + area of the rectangle
Total Area = ½bh + L*W × ½*by
= ½*7*7.2 + 7.6 × 7.2 + ½*8.6*7.2
= 25.2 + 54.72 + 30.96
Total Area = 110.88 m²
Val's whole-house central air conditioner uses 3,500 watts when running. Val runs the AC 5 hours per summer day. Electricity costs (10 cents)/(1 kilowatt-hour). How much does Val's AC cost to run for a summer month of 30 days?
Answer:
$52.50.
Step-by-step explanation:
Since Val's air conditioner uses 3,500 watts when running, and that Val uses it for 5 hours during summer days, spending 10 cents per kilowatt hour, determining how much money Val will spend during a 30-day summer must be done the following calculation:
3,500 watts = 3.5 kilowatts
3.5 kilowatts per hour = 35 cents
35 cents x 5 hours = 175 cents per day
175 cents per day x 30 days = 5250 cents per month
5250/100 = X
52.5 = X
Thus, during 30 days of summer, Val will spend $ 52.50 on electricity from the use of his air conditionier.
true or false: define event A = {1,2,3,4} and event B = {2,3,6,7}. A u B = {2,3}
Answer: Im pretty sure its True
Step-by-step explanation:
sorry if this doesnt help :(
have a great day :)
If A = {1,2,3,4} and B = {2,3,6,7}.
then, A u B = {2,3} is false
The union of two sets A and B is a set containing the elements in set A or B.
The given sets are:
A = {1,2,3,4}
B = {2,3,6,7}
A u B is the set of elements in A or B
Therefore, A u B = {1, 2, 3, 4, 6, 7}
Note that:
A ∩ B = {2, 3}, it is not A u B
Therefore, A u B = {2,3} is false
Learn more on union of sets here: https://brainly.com/question/2166579
Set up and evaluate an integral for the volume of a right pyramid whose height is 2 and whose base is a square with a side of 1?
Answer:
[tex]\mathbf{ \int^2_0 \dfrac{x^2}{4}. dx = \dfrac{2}{3}}[/tex]
Step-by-step explanation:
The volume of right pyramid whose base is a square is expressed by the formula:
[tex]V = \int^h_o \dfrac{L^2 *y^2}{h^2}. dy \ or \ V = \int^h_o \dfrac{L^2 *x^2}{h^2}. dx[/tex]
Given that:
height h = 2; &
side (l) = 1
Then;
[tex]V = \int^2_0 \dfrac{(1)^2 *x^2}{(2)^2}. dx[/tex]
[tex]V = \int^2_0 \dfrac{x^2}{4}. dx[/tex]
[tex]V =\dfrac{1}{4} \Big [ \dfrac{x^3}{3} \Big ] ^2_0[/tex]
[tex]V =\dfrac{1}{4} \Big [ \dfrac{(2)^3}{3} -0\Big ][/tex]
[tex]V =\dfrac{1}{4} \Big [ \dfrac{8}{3} -0\Big ][/tex]
[tex]\mathbf{V = \dfrac{2}{3}}[/tex]
Please help! Will Mark brainliest!
Answer:
25
Step-by-step explanation:
i not fully sure if this is right
Select the correct answer
What is the end behavior of the radical function represented by this graph?
The end behavior of the radical function represented by this graph is As x decreases in value , f(x) increases in value , as x increases in value , f(x) increases in value , Option A is the correct answer.
What is a Function ?A law that relates a dependent and an independent variable is called a Function.
The graph with a function is given
The end behavior has to be predicted
It can be seen from the graph that
as x decreases , as x value is going to negative the value of y is decreasing and going from positive to zero
as x is increasing , The value of y is increasing
Therefore , Option A is the correct answer.
To know more about Function
https://brainly.com/question/12431044
#SPJ2
Do I have the right answer help ?
Mrs. Moore's third grade class wants to go on a field trip to the science museum.
-The cost of the trip is $245.
-They currently have $180 in their class field trip fund.
-The students can earn $15 each week if they run the store.
A) How much more money does the third grade class still need to earn to pay for their trip?
B) How many weeks will it take them to earn the money they need?
Answer:
hahahhahaha
Step-by-step explanation:
abahahahhahah
glenn bought a $5 coffee and four magazines. If he spent a total of $25 how much did each magazine cost?
Answer:
5 each
Step-by-step explanation:
we will minus the coffee from the total
25 - 5 = 20
there's was 4 magazines so we do...
20 ÷ 4 = 5
Use the ALEKS calculator to write 15/17 as a decimal rounded to the nearest tenth
Answer:
15/17 is 0.88.
and rounded to the nearest tenth is 0.9
have a good day! c:
A recipe calls for using 3/4 cup of brown sugar for each 2/3 cup of white sugar. How many cups of brown sugar are used per cup of white sugar.
Which number sentence below matches this word problem?
Alice's garden produced 17 yellow tomatoes this year. She also grew 18 roma
tomatoes. What was the total number of tomatoes she grew?
A. 18- 17 = 1
B. 17 + 18 - 35
C. 306 - 17 - 18
D. 18 x 17 = 306
