Answer:
its d and c
Step-by-step explanation:
Answer:
translation left,
dialation with center C
Step-by-step explanation:
**********URGENT***********
The time required to complete a job varies inversely as the number of people working. It took 4 hours for 7 electricians to wire a building. How long would it have taken 3 electricians?
A. 1 hour 43 minutes
B. 5 hours 15 minutes
C. 7 hours 30 minutes
D. 9 hours and 20 minutes
Answer:
9 hours and 20 minutes: b
Step-by-step explanation:
4*60=240
7x240=1680
1680/3=560
560= 9 h 20 m
The time required when 3 electricians are working is 9 hours and 20 minutes.
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.com
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
The time required to complete the job varies inversely with the number of people working.
This means that if the number of people working decreases, the time required to complete the job will increase.
We can use the formula for inverse variation to solve the problem:
t = k/n
where t is the time required to complete the job, n is the number of people working, and k is a constant of proportionality.
We can find k by plugging in the given values:
4 = k/7
k = 28
Now we can use the formula to find the time required when 3 electricians are working:
t = 28/3
t ≈ 9.33 hours
Converting this to hours and minutes, we get:
t ≈ 9 hours and 20 minutes
Thus,
The time required when 3 electricians are working is 9 hours and 20 minutes.
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A remote control car costs $60. It is reduced to $45 in a sale. What is the percent change?
Answer:
25%
Step-by-step explanation:
i dont have a Step by step explanation
Solve if x is equal to 4
y=2x
y=?
Answer:
8
Step-by-step explanation:
because 2 time x=4 then multiply them and you get 8
I NEED HELP ASAP WILL MARK BRAINLIEST
Our family has a budget of $4,000 to spend on our next vacation. We plan to spend 7/9 of this amount on gasoline and hotel rooms. We plan to spend 1/2 of the remaining amount on eating out and buying snacks. (food). How much do we plan to spend on food during our vacation?
Group of answer choices
$444.45
$888.89
$1230.00
$3111.11
Answer:
I think it is 888.89
Step-by-step explanation:
Hope this helps. :D
AB is the angle bisector of CAD. Solve for the missing variable?
Answer:
[tex]x=8^\circ[/tex]
Step-by-step explanation:
A bisector is the line that divides an angle (which in this case is [tex]\angle CAD[/tex]) exactly in half. Therefore, [tex]\angle CAB = \angle BAD[/tex] and as such we can solve for [tex]x[/tex]:
[tex]\angle CAB &= \angle BAD\\33^\circ &= 4x + 1^\circ\\4x = 32^\circ\\x = 8^\circ[/tex]
and we are done.
A chef uses 18 ponds of butter each day about how many grams of butter does he use each day?
Answer:
8164.66g
Step-by-step explanation:
18 pounds -> 8164.66g
Find (6) x (-3)
What is the answer to this?
Answer:
Multiply 6 by −3.
−18
Step-by-step explanation:
Hope it is helpful.....
Answer:
-18
Step-by-step explanation:
make sure you know your tables of 6 it might help you.
In 1983, a cast-iron pan cost $28.35. Today, a cast-iron pan costs $52.95. If the CPI is 166, what is the percent relation
of the actual price of a cast-iron pan to the expected price?
a The actual price is 11.1% lower than the expected price.
b The actual price is 20.8% lower than the expected price.
The actual price is 31.5% higher than the expected price.
d. The actual price is 12.5% higher than the expected price.
с.
Answer:
d.
The actual price is 12.5% higher than the expected price
Step-by-step explanation:
The percent relation of the actual price and the expected price is 12.5%
What is the consumer price index?The consumer price index measures the changes in price of a basket of good. It is used to measure inflation.
Price of the cast iron today = $28.35 x (166/100) = $47.06
The percent relation of the actual price and the expected price = ($52.95/$47.06) - 1 = 12.5%
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Find the area of the shape below.
Jada bikes 2 miles in 12 minutes. Han swims 1 mile in 24 minutes.
Jada is moving (faster or slower?)
How many miles can Han Swim per hour?
How many miles can Jada Swim per hour?
Answer:
Jada is moving faster
Jade goes 10 miles in one hour
Han goes 2.5 miles in one hour
Step-by-step explanation:
Jada is 2miles/12 minutes=2(5) miles in 12(5) minutes
Jade goes 10 miles in 60 minutes (or one hour)
Han is 1 mile/24 minutes=1(2.5) miles in 24(2.5) minutes
Han goes 2.5 miles in 60 minutes (or one hour)
Jada is moving faster
Keith spent 48 minutes to make 8 flyers how long was spent for each flyer
Answer:
6 minutes
Step-by-step explanation:
48/8=6
What is the perimeter of this figure
40 in.
10 in.
50 in.
18 in.
Answer:
236
Step-by-step explanation:
100+100+36=236
Answer:
C. 180
Step-by-step explanation:
Just need help with number 2 I will GUVE brainliest
Write the slope-intercept equation of a line that is perpendicular to y = 4x
+5 and contains the point (4-3)
Answer: y=1/4x-4
Step-by-step explanation:
y=mx+b
The area of a circle is 169π
What is the value of r?
Answer:
radius is 7.33...
Step-by-step explanation:
I think that is the answer but i am not very sure
Consider the standard form of an exponential function:
y = a (b)^x
1. How does changing the base number (inside the parentheses) change your graph? (10 points)
2. How does changing the number outside the parentheses change your graph? (10 points)
3. Create three new exponential equations to represent Alison, Cindy, and Javier. (30 points)
Alison loves social media and likes for her posts to be shared as much as possible while Cindy and Javier prefer for their posts to stay amongst their friends primarily.
I have number one please help with 2 and 3.
Answer:
2. If we plug in X = 0 into our problem ( Y = A(B)^X ) I would get Y = A which drastically changes the initial value, the Y-intercept, and the point on the graph. The point changes to (0,a) which becomes the new Y-intercept.
3. Cindy and Javier would be ln(x) and x^(1/2) as they will grow somewhat fast at first and then die out.
While Alison would be 1/(1+e^-x) representing an s curve showing a lot of growth and later evening out.
Step-by-step explanation:
The answer to part [2] and [3] are given above.
What is a mathematical function? What is an exponential function? Differentiate between equation and expression? exponential function : An exponential equation is given by -y = A(B)ˣ
function : In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.equation : A mathematical equation is used to equate two expressions.Given is the standard form of an exponential function -
y = a (b)^x
[2] - Changing the number outside the parenthesis will determine the amplitude scaling of the graph of (A)ˣ. For -
a > 1 (Magnitude will increase)
a < 1 (Magnitude will decrease)
a = 0 (Magnitude will become zero)
[3] - For Alison, we can write the expression as -
y{A} = 5000(1000)ˣ
For Cindy and Javier, we can write -
y{C} = (2)ˣ
y{J} = (3)ˣ
where -
[x] represents the number of posts.
Therefore, the answer to part [2] and [3] are given above.
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PLEASE HELP ME!!!!!!!!!
Answer:
1. Complementary
2 Supplementary
Hope this helped!
Answer:
Angles that add up to 90: Complementary
Angles that add up to 180 degrees: Supplementary
Step-by-step explanation:
-5=n-8/4
What is happening to the variable?
How do you solve for the variable?
Answer:
n=-3
Step-by-step explanation:
Alrighty, now if I understood the problem correctly, we can simplify it to:
-5=n-2
We do +2 on both sides, and -5+2 is -3
So, n=-3
Answer:
n= -3
you move the variable to the other side it has to be by it self on the other side of the equal sigh
Step-by-step explanation:
-5 =n-2
-5+2=n
-3=n
n=-3
The quotient of a number and two is increased by seven. The result is eleven. What is the number?
9
2
8
1
Answer:
C
Step-by-step explanation:
8 is the correct answer.
Answer:
8
Step-by-step explanation:
Pls help me with my homework
Answer:
b = 8
Step-by-step explanation:
Using Pythagorean Theorem, a[tex]a^{2} +b^{2} =c^{2}[/tex], we just plug in what we know.
We know that the hypotenuse, c, is 10 km. We also know that one of the other side lengths is 6 km, we can plug that into either a or b.
Now, our equation will be: [tex]6^{2} +b^{2} =10^{2}[/tex].
You could also use the equation: [tex]b^{2} =10^{2} -6^{2}[/tex].
Next, we'll just solve the equation.
[tex]10^{2} =100[/tex], [tex]6^{2} = 36[/tex]
[tex]b^{2} =100 - 36[/tex]
[tex]b^{2} = 64[/tex]
[tex]\sqrt{b^{2} } = \sqrt{64}[/tex]
b = 8
Good luck :D
Trigonometry!! Full explanation is optional, i just rllyyyyy need an answer
Answer:
where the picture
Step-by-step explanation:
The first number plus the second number equals 83, the first number
minus the second number equals 33. What are the two numbers?
Answer:
I hope this helps
Step-by-step explanation:
So the way to handle a problem like this is to rewrite the three numbers in terms of their relationship to one of the three numbers. Let's call the numbers x, y, and z, where x is the first number, y is the second, and z is the third.
We know x + y + z = 83.
Since the third number is twice the second, we say that z = 2y.
Since the second number is seven less than the first, we say that y = x - 7. We can rewrite this as x = y + 7.
Now all three can be written in terms of y.
x + y + z = 83
(y + 7) + y + 2y = 83
4y + 7 = 83
4y = 76
y = 19
The second number is 19. The first is 19 + 7 or 26, and the third is 2 times 19 or 38.
A check reveals that 26 + 19 + 38 = 83.
What is the slope of the line that passes through the points (-5,-6 ) and (5,1)?
Answer: Slope-intercept form, y=mx+b, of linear equations, emphasizes the slope and the y-intercept of the line.
m(slope)=7/10 or (7,10)
What is the correct answer?
Answer:
I do not know
Step-by-step explanation:
I dont know
60 problemi 3 saatte çözen Erdem
yarım saatte kaç problem çözer?
Answer:
20 Problem Çözer
Step-by-step explanation:
60 ile 3'ü bölüyoruz. Ve Cevap 20 Çıkıyor.
What type of solution is this?
7=7
Answer:
I'm 99% sure it's infinite solutions
It's NOT D
Write a rule for the linear function in the table.
A. f(x) = 4x
B. f(x) = x + 4
C. f(x) = x – 4
D. f(x) = 4 – x
Answer:
You may want to email your teacher. I am pretty sure it is d, or f(x)=4-x.
Step-by-step explanation:
4-1=3
4-2=2
4-3=1
4-4=0
The first three terms of a sequence are given. Round to the nearest thousandth (if necessary). 15, 30,60,... Find the 6th term.
Answer: 120, 240, 480
Step-by-step explanation:
It would appear that the numbers are increasing in multiples of 2.
15 * 2 = 30
30 * 2 = 60
The next 3 terms will therefore be:
60 * 2 = 120
120 * 2 = 240
240 * 2 = 480
Answer:
480
Step-by-step explanation:
What is the eqution of the following line?
y=4x−1
y=4x+4
y=−4x+4
y=−4x−1
If Mr.Novak gives 9 packs of paper to a group of 5 students. If the group shares the paper equally. How many packs of paper does each student get? Write the answer as a mixed number.
Each student gets 1 whole pack of paper and 4/5 of a pack.
What is a division in mathematics?
Division is a mathematical operation that is used to determine the number of times one number, called the dividend, is contained within another number, called the divisor. The result of a division operation is called the quotient.
When a group of students share a certain number of items equally, it means that each student will receive the same number of items. To find out how many items each student will receive, we need to divide the total number of items by the number of students.
In this case, Mr. Novak gives 9 packs of paper to a group of 5 students. To find out how many packs of paper each student gets, we need to divide 9 by 5. We can use long division or use a calculator to find that 9 divided by 5 is 1 with a remainder of 4. So, each student will get 1 whole pack of paper, and the remaining 4 packs will be shared among the students. This can be written as a mixed number, which is a combination of a whole number and a fraction. In this case, the mixed number would be 1 4/5.
Hence, each student gets 1 whole pack of paper and 4/5 of a pack.
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