Answer:
10 3/4 feet longer
Step-by-step explanation:
17 3/4= 17.75
28 1/2= 28.50
28.50 - 17.75 = 10.75
10.75 = 10 3/4
During a science experiment, Cesar sets up a group of filter that removes contaminants from a liquid sample. Each filter removes 94.8% of the remaining contaminants. Which recursive formula describes the fraction of contaminants still remaining in the liquid sample after passing through n filters?
Using an exponential function, the recursive formula that describes the fraction of contaminants still remaining in the liquid sample after passing through n filters is given by:
[tex]A[n] = (0.052)^n[/tex]
What is an exponential function?A decaying exponential function is modeled by:
[tex]A(t) = A(0)(1 - r)^t[/tex]
In which:
A(0) is the initial value.r is the decay rate, as a decimal.In this problem, considering an initial fraction of A(0) = 100% = 1, the decay rate is of r = 0.948, hence the formula is:
[tex]A[n} = (1 - r)^n[/tex]
[tex]A[n] = (0.052)^n[/tex]
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(y+3)=−34(x−4) find the point and the slope
Answer:
Slope: -34
Point: (4, -3)
Step-by-step explanation:
This equation is written in point-slope form. The equation of a line in point-slope form is written as (y - y_1) = m(x - x_1).
x_1 and y_1 are the x and y coordinates of one point.m is the slope of the line.We are asked to find the point and slope of (y + 3) = -34(x - 4). We can automatically determine that the slope is -34 because that's where the variable, m, is. Next, we know that the x-coordinate is 4 because it's in the place of x_1. Lastly, the y-coordinate is -3 because it changes the subtraction sign to an addition sign, and it's in the place of y_1. Thus, the point would be (4, -3).
Have a lovely rest of your day/night, and good luck with your assignments! ♡
please help me ......
Answer:B
Step-by-step explanation:
What is 1.75 divided by 5.25
Answer:
0.33333333333
1.75 / 5.25 equals: 0.33333333333
Step-by-step explanation:
The solution after divide is,
⇒ 1.75 divided by 5.25 = 0.33
We have to given that;
The expression to solve.,
⇒ 1.75 divided by 5.25
Now, We can divide as;
⇒ 1.75 divided by 5.25
⇒ 1.75 / 5.25
⇒ 175/525
⇒ 0.33
Thus, The solution after divide is,
⇒ 1.75 divided by 5.25 = 0.33
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For each value of u, determine whether it is a solution to -28 = -4(u+5).
Is it a solution ?
can you please help me
Answer:
x = 32
Step-by-step explanation:
180 - 110 (y) = 70
so corner b = 70 degrees
360 - 282 = 78 (282 = z)
70 + 78 = 148
180 - 148 = 32
180 because all triangles angles add up to 180 degrees
so therefore x = 32 degrees
What's the answer to 8.546 rounded to the nearest ones place
Answer:
8.5
Step-by-step explanation:
because the hundredths place is not above 5
Solve this inequality for n.
14< n - 22
thanks ^^
Answer:
n = 36
Step-by-step explanation:
First, isolate the variable. Then, use the opposite operations to manipulate the inequality, whatever you do to one side you must to do the other, solve the right side to find your variable.
n - 22 + 22 < 14 + 22
n = 36
6 divided by 3.54 ..
Answer:1.694
Step-by-step explanation:
You take away the decimal from 3.54 and make the 6 the same number place
Ex. 1 ÷ 1.20
1=100
1.20=120
600 ÷ 354 = 1.694
A university's freshman class has 8900 students. 3471 of those students are majoring in Engineering. What percentage of the freshman class are Engineering majors?
Answer:
39%
Step-by-step explanation:
[tex]\frac{3471}{8900}[/tex] converted to a percentage = 39%, or 0.39 in decimal form.
what is the perimeter of square 3/4 inches
Answer:
p=4a
Step-by-step explanation:
Hi can you please help me thank youuu
help idk how to solve will mark brainliest to first who answers
Answer:
y=-1.25x+45
Step-by-step explanation:
pick 2 points
(4,40) and (8, 35)
use y-y1=m(x-x1)
m=(35-40)/(8-4)=-1.25
y-40=-1.25(x-4)
y=-1.25x+5+40
y=-1.25x+45
What is y 6=2(y+2)
HELP ME PLEASE
The linear function y= 13x represents the distance y (in miles) you have traveled after x hours during a 4-hour bicycle ride.
Which graph represents the situation?
Answer:
Step-by-step explanation:
Linear function representing the distance traveled 'y' in 'x' hours is,
y = 13x
Table for the points lying on the line is,
x y
1 13
2 26
3 39
4 52
5 65
Since, these points are lying on the graph shown in the picture,
Given graph will be the answer.
Which relationships describe angles 1 and 2?
Select each correct answer.
1. supplementary angles
2. vertical angles
3. adjacent angles
4. complementary angles
Answer:
supplementary
Step-by-step explanation:
angle adds to 180 degrees
(a-b) (c-d). Please give steps :c
Answer:
ac - ad - bc + bd
Step-by-step explanation:
There aren't very many steps to show, but I'm assuming that you needed to multiply out the equation. So for this, you would use FOIL which means first, inner, outer, last.
I think of it as multiplying the a with c and d, and then multiplying the b with the c and d. When you do this, you get ac - ad - bc + bd.
which equation shows the correct relationship between the measures of the angles of the two triangles?
m<ABC=m<A'B'C'
Observe both triangles
<A=<A'<B=<B'<C=<C'So<ABC=<A'B'C'
Jessica’s bank is offering bear a loan with a stated rate of 4.90% interest. If the interest is compounded every two months what will Jessica pay. For interest l?
A. 4.90
B. 5.00
C. 5.01
D. 4.98
Answer:
B no wrok needed
Step-by-step explanation:
pet and lunch preferences
The lines in the graph are pretty close to each other, the answer would be the second choice.
There is no association because distribution of lunch preference is approximately the same.
A full bathtub is emptying at a
fixed rate. Which of the following
equations may relates the amount
in water y, in gallons, with the
amount of time, x minutes. Assume
the bathtub is holding 100 liters
of water, and empties at a rate of
5.8 liters per minute.
Answer:
D 5y + 29x = 500
Step-by-step explanation:
Slope-intercept form of a linear equation: y = mx + b
(where m is the slope/rate of change, and b is the y-intercept)
Given:
bathtub holds 100 liters⇒ when x = 0, y = 100
Therefore, b = 100
Given:
the water is emptying at a rate of 5.8 liters/minNote that the water is decreasing in volume as time goes by. Therefore, the rate of change is negative, so m = -5.8
Inputting these values into the equation gives:
y = -5.8x + 100
Multiply the equation by 5:
5y = -29x + 500
Rearrange:
5y + 29x = 500
Therefore, D is the solution.
Which expression shows two times seven to the fifth?
A.
27 × 5
B.
2 × 75
C.
27 × 5
D.
2 × 7 × 5
Answer:
B.2 × 7^5
Step-by-step explanation:
two times seven to the fifth = 2 x 7^5
[tex]2 * 7 ^5[/tex]
[RevyBreeze]
Please help asap! I will gave brainlest!
is it possible to build a triangle with side lengths of 3,3 and 9?
Answer:
yes,it can ................
Pls help me here on this question
Triangle ABC and triangle ACD are isosceles. Angle DAB = 86° and angle ADC = 58°. Find the value of x.
The computation of triangle ABC and ACD which are both isosceles shows that the value of x will be 36°.
How to solve the triangle?It should be noted that the sum of angles in a triangle is 180°. In this situation two of the three angles have been given.
Therefore, the value of the third angle will be:
86° + 58° + x = 180°
144° + x = 180°
x = 180° - 144°
x = 36°
In conclusion, x is 36°.
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Choose the inverse of y = x2 – 10x.
Answer:
The inverse is 5±sqrt(x+25)
Step-by-step explanation:
y = x^2 - 10x
To find the inverse, exchange x and y and solve for y
x = y^2 -10y
Complete the square
x+25 = y^2 -10y +25
x+25 = (y-5)^2
Take the square root of each side
±sqrt(x+25) = y-5
Add 5 to each side
5±sqrt(x+25) = y
The inverse is 5±sqrt(x+25)
Answer:
[tex]y=\pm\sqrt{x+25}+5[/tex]
Step-by-step explanation:
Given function:
[tex]y=x^2-10x[/tex]
Rearrange to make [tex]x[/tex] the subject.
First, complete the square by adding 25 to both sides and factoring:
[tex]y+25=x^2-10x+25[/tex]
[tex]y+25=(x-5)^2[/tex]
Square root both sides:
[tex]\pm\sqrt{y+25}=x-5[/tex]
Add 5 to both sides:
[tex]x=\pm\sqrt{y+25}+5[/tex]
Finally, swap [tex]x[/tex] and [tex]y[/tex] (since the inverse of a function is its reflection in the line [tex]y = x[/tex])
[tex]y=\pm\sqrt{x+25}+5[/tex]
Becky made 10 cups of chocolate mousse for dessert. If she plans to serve each person of a cup of chocolate mousse, how many people can she serve? 30 people people 10 people people
The number of people she can serve is 10 people.
She made 10 cups of chocolate mousse for dessert.
Her plan was to serve each person of a cup of chocolate mousse.
This means she will serve one person a cup of the chocolate mousse for dessert.
The number of people she will serve can be calculated with the following proportion.
let
x = number of people she can serve
Recall each person must get one
Proportional relationship10 / x = 1cross multiply
x = 10
Therefore, the number of people she can serve is 10 people.
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An engineer draws a scale model of a building.
• The scale of the drawing is 1 inch = 2.5 feet.
• On the drawing, one wall is 30 inches long.
What is the length of the actual wall?
Answer:
75 feet
Step-by-step explanation:
[tex]\frac{2.5ft}{1in} = \frac{x}{30in} \\[/tex]
By using a proportion we can solve this problem.
By isolating x we get x = 2.5(30) so x = 75.
Thus if the wall is 30 in in the model it is 75 feet in actuality.
20-3+12/6x2=N
Helpppppp
Answer:
N=21
Step-by-step explanation:
20-3+12/6x2=N
20-3+2x2=N
20-3+4=N
21=N
N=21