Answer:5
Step-by-step explanation:
rate of change is the same thing as slope (or m)
The required rate of change for the given equation y = 5x + 25 is 5.
Given that,
For the given equation y =5x +25 the rate of change is to be determined.
The slope of the line is the tangent angle made by line with horizontal. i.e. m =tanx where x in degrees.
What is the rate of change?The rate of change is defined as the change in value with the rest of the time is called rate of change.
Here,
The given equation,
y = 5x + 25
Differentiate the above equation with respect to x,
dy/dx = d(5x +25)/dx
dy/dx = 5dx/dx + d25/dx
dy/dx = 5 (since dx/dx =1 and d25/dx = 0)
here dy/dx is the slope of the equation or m or rate of change = 5
Thus, the required rate of change for the given equation y = 5x + 25 is 5.
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Help me please ASAP
Answer:
135°
Step-by-step explanation:
total = 360°
360° = 90° + 135° + x°
x° = 360° - (90° + 135°) = 360° - 225°
x° = 135°
True or false? The degree of a binomial is always equal to 2
Answer:
false
Step-by-step explanation:
the degree is found by looking at the term with the highest exponent of the variable..
Answer:
It's False..........
f(x)
- 4x² + 4x-4
Find f(3)
Which polynomial is prime? A. x^4 + 3x^2 – x^2 – 3 B. x^4 – 3x^2 – x^2 + 3 C. 3x^2 + x – 6x – 2 D. 3x^2 + x – 6x + 3
Answer:
A and B
Step-by-step explanation:
A polynomial with integer coefficients that cannot be factored into polynomials of lower degree, also with integer coefficients, is called an irreducible or prime polynomialAs per above definition, A and B polynomials have coefficients 1 or 3, so are prime polynomials.
C and D polynomials have coefficient of 6 which can be further factored
A. x^4 + 3x^2 – x^2 – 3
yesB. x^4 – 3x^2 – x^2 + 3
yesC. 3x^2 + x – 6x – 2
noD. 3x^2 + x – 6x + 3
noPLEASE HELP ... how many students are in each van? And how many students are in each bus ?
Answer:
7 students in each van and 52 students in each bus.
Step-by-step explanation:
v = no of students in van, b = no of student in bus
High school A ⇒ 3v + 6b = 333 ---------- Equation (1)
High school B ⇒ 11v + 6b = 389 ------------ Equation (2)
Solve equation (1) & (2) simultaneously :
11v + 6b = 389
3v + 6b = 333
----------------------- MINUS
8v + 0 = 56
v = 56 / 8
v = 7
Put v = 7 into Equation (1) to get b:
3v + 6b = 333
3 (7) + 6b = 333
21 + 6b = 333
6b = 312
b = 312 / 6
b = 52
So there are 7 students in each van and 52 students in each bus.
Terry bought some gum and some candy. The number of packs of chewing gum was one more than the number of mints. The number of mints was three times the number of chocolate bars. If gum cost 6 cents a pack, mints cost 3 cents each, and chocolate bars cost 10 cents each, how many of each confection did he get for 80 cents?
Answer:
Hi!!
Step-by-step explanation:
7 = chewing gum
6 = mints
2 = chocolate
Answer:
number of packs of chewing gum is 7
number of mints is 6
number of chocolate bars is 2
Step-by-step explanation:
number of packs of chewing gum → x, cost 6¢
number of mints → y = x-1 =3z, cost 3¢
number of chocolate bars → z = y/3 = (x-1)/3, cost 10¢
put in equation 6x + 3y +10z = 80 plug in term of x
6x +3(x-1) +10((x-1)/3) =80 multiply each side by 3
18x +9(x-1) +10(x-1) =240 distribute
18x+9x-9+10x-10 =240 combine like terms
37x-19 = 240 add 19 in each side
37x =259
x = 7
plug into y = x-1 = 7-1 = 6 so y=6
and z = y/3 =6/3 =2 so z = 2
pls help for brainliest answer
Cuanto son 2 mas 2?
Answer:
4
Step-by-step explanation: 2x2=4
Answer:
4
Step-by-step explanation:
The slope of the line is y-4= 1/2 (x-1)
Answer:
1/2
Step-by-step explanation:
in point slope form (y-h) = slope(x-k)
The equation in the slope-intercept form will be y = x/2 + 7/2. Then the slope of the equation is 1/2.
What is a linear equation?A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.
The linear equation is given as,
y = mx + c
Where m is the slope of the line and c is the y-intercept of the line.
The linear equation is given below.
y - 4 = 1/2 (x - 1)
Convert the equation into a slope-intercept form. Then we have
y - 4 = 1/2 (x - 1)
y - 4 = x/2 - 1/2
y = x/2 - 1/2 + 4
y = x/2 + 7/2
The equation in the slope-intercept form will be y = x/2 + 7/2. Then the slope of the equation is 1/2.
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hey pls answer
WHAT IS THE PRODUCT OF 2 AND 3
i'm having trouble with this, pls help!
Answer:
6
Step-by-step explanation:
2(3)=6
Answer:6
Step-by-step explanation:
2x3 is 6
The dual bar chart shows the hair colour of boys and girls in a year group. What fraction of the red haired students are boys? Give your answer in its simplest form
Answer:
[tex]\frac{3}{4}[/tex]
Step-by-step explanation:
Total red haired students = 15+5 = 20
Boys = 15
Fraction:
=> [tex]\frac{15}{20}[/tex]
In simplest form:
=> [tex]\frac{3}{4}[/tex]
i don't even know what this is literally someone help me (khan)
Answer:
5√2
Step-by-step explanation:
√50=√25*2=√5^2*2=5√2
Answer:
5[tex]\sqrt{2}[/tex]
Step-by-step explanation:
[tex]\sqrt{50}[/tex] is equal to [tex]\sqrt{25}[/tex] · [tex]\sqrt{2}[/tex]
This can be simplified to 5[tex]\sqrt{2}[/tex]
Company A charges $17, plus $11 per day to rent a piece of equipment. Company B charges $33, plus $9 per day to rent the same piece of equipment. How many days must the piece of equipment be rented for Company B to be less expensive?
Answer: The answer is 8 days
Step-by-step explanation:
this is the last step you do
16/2 2/2
and 16/2
is 8
so the answer is 8
Hope this helps :)
Please help, On Saturday morning, Owen earned $21. By the end of the afternoon he had earned a total of $60. Enter an equation, using x as your variable, to determine whether Owen earned $39 or $37 on Saturday afternoon.
Answer:
$39 is the correct answer .
Step-by-step explanation:
Let the amount he earned on the afternoon be x then
Amount earned in morning + Amount earned in afternoon=total amount
[tex]\$ 21 +\ x\ =\ \$ 60 \\\ x=\$60 -\$ 21\\x=\$ 39[/tex]
Therefore $39 is the amount he earned on afternoon .
Which of the following is the equation of a line in slope intercept from a line with the slope of 2/3 and Y intercept at 0,-2
Answer:
y= 2/3x - 2
Step-by-step explanation:
b is were the line crosses the y intercept so its -2
and the slope is 2/3x
hope this helps:)
Alex is drawing rectangles with different areas on a centimetre grid he can draw 3 different rectangles with an area of 12cmsquared a) How many different rectangles could alex draw with an area of 11cmsquared? B)Give a reason for ur anwser
Answer:
Alex can only draw a rectangle with an area of 11 cm²
The reason for the answer is that 11 is a prime number
Step-by-step explanation:
We are told that Alex is drawing rectangles with different areas on a centimeter grid, and he can draw 3 different rectangles with an area of 12 cm²
We have the minimum grid length of centimeters = 1 cm, since we assume that only integers can be used.
That is to say:
12 = 1 x 12
12 = 2 x 6
12 = 3 x 4
These are the 3 different rectangles with an area of 12 cm²
Now we have to find how many rectangles Alex could draw with an area of 11 cm²
11 = 1 x 11
Therefore, only one factorization is possible. Which means that you can only draw a rectangle with an area of 11 cm²
The reason for the answer is that 11 is a prime number, which means only the common factor of 1 and the number itself, that is, 11.
Which situation involves a change modeled by a positive number but an end result modeled by a negative number? A.Leo enters an elevator on the second floor and goes down four floors. B. A plane, flying at an altitude of 300 feet, descends 50 feet. C. Irene is scuba diving at –30 feet. She swims 10 feet toward the surface to watch a school of fish. D. April owes her brother $5. On Friday, she gets $10 for her allowance.
The positive number but a negative result would be :
C. Irene is scuba diving at –30 feet. She swims 10 feet toward the surface to watch a school of fish.
The positive value is she swam 10 feet up to the surface, but she is still below the surface, which would be a negative result.
The situation that would involve a change that is from a positive number but ended in a negative number is option C.
This option tells us that at the negative number she was 30 feet below the surface of the water, while at positive number she was 10 feet up the water surface.
What is a positive number?This is a number that is greater than 0.
What is a negative number?This is a number that is less than 0.
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Write an equation of the line passing through the point (5,1) that is perpendicular to the line 5x+3y=15
Step-by-step explanation:
answer in photos
here m is intercept
Answer:
y = 3÷5x−2
Step-by-step explanation:
the answer is y = 3÷5x−2
what is 9.45 rounded to the nearest whole number?
Answer:
[tex]\Huge \boxed{\mathrm{9}}[/tex]
[tex]\rule[225]{225}{2}[/tex]
Step-by-step explanation:
9.45
To round up to nearest whole number, we have to see the tenth place.
If the value of the tenth place is greater or equal to 5, then we round up the number to 10. If the value of the tenth place is less than 5, the we round up the number to 9.
The value of the tenth place is 4, which is less than 5, we will round up the number to 9.
[tex]\rule[225]{225}{2}[/tex]
9.45 rounded to the nearest whole number is 9.
Given that a decimal number 9.45 we need to round it to the nearest whole number,
To round a decimal number to the nearest whole number, you need to look at the digit immediately to the right of the decimal point.
In the case of 9.45, the digit to the right of the decimal point is 4. If this digit is less than 5, you simply remove all the digits after the decimal point and keep the whole number as it is.
However, if the digit to the right of the decimal point is 5 or greater, you increase the whole number by 1.
To round 9.45 to the nearest whole number, we examine the decimal part of the number, which is 0.45.
If the decimal part is less than 0.5, we round down to the nearest whole number. In this case, since 0.45 is less than 0.5, we round down.
Therefore, 9.45 rounded to the nearest whole number is 9.
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Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 20. Use the empirical rule to determine the followinWhat percentage of people has an IQ score greater than 120?
Answer:
Percentage of people with IQ greater than 120 is 84.134%
Step-by-step explanation:
First thing we do here is to calculate the
z-score
Mathematically;
z-score = (x-mean)/SD
here, x = 120, mean = 100 while SD = standard deviation = 20
z-score = (120-100)/20 = 20/20 = 1
The probability we want to calculate is;
P(x > 120) or P(z >1)
we proceed to use the standard score table to get this;
From the standard score table ;
P(z >1) = 0.84134
which is in percentage = 84.134%
Toby, Daoud and Elsa share a sum of money. Toby gets 1/6 of the money and Daoud gets 1/2 of the money. Elsa gets the rest of the money Toby gets £1.50 Work out how much money Daoud gets. Find the ratio amount of money Toby gets: amount of money Elsa gets Give your answer in the form a : b where a and are whole numbers
Answer:
Daoud's share of the money = £4.50Toby's Money : Elsa's Money=1:2Step-by-step explanation:
Let the total amount of the money = x
Toby gets 1/6 of the moneyToby gets £1.50Therefore:
[tex]\dfrac16x=1.50\\x=1.50 \times 6\\x=\£$ 9[/tex]
Daoud gets 1/2 of the money.
Therefore: Daoud's share of the money
[tex]=\dfrac12 \times \£$ 9 =\£$ 4.50[/tex]
Elsa's Share of the money = 9-(4.50+1.50)=£3
Therefore:
Amount of money Toby gets: Amount of money Elsa gets
= 1.50: 3
Divide both sides by 1.50
Toby's Money : Elsa's Money=1:2
Answer:
Step-by-step explanation:
what is = to 95
if u do iwill give u brainliest
Answer:
19 x 5
Step-by-step explanation:
[tex]19 \times 5 = 95[/tex]
Hear is a rectangle 7 cm 3 cm the squre has the same peremeter as the rectangle what is the side length of this squre ______7cm_______ l l l l 3 cm l _______________l
Answer:
5 cm
Step-by-step explanation:
The rectangle has a length (l) of 7 cm and a width (w) of 3 cm. Therefore, the perimeter of the rectangle is:
Perimeter of rectangle = 2(l + w) = 2(7 + 3) = 2(10) = 20 cm
Since the rectangle and the square has the same perimeter, Therefore, the perimeter of the square is:
Perimeter of square = 2(l + w). But the length and width of a square are the same (i.e l = w). Therefore:
Perimeter of square = 4l
20 = 4l
l = 20 / 4 = 5 cm
Each side of the square has a length of 5 cm
100*9-2+12/2=
Just need the answer
Answer:
904
Step-by-step explanation:
According to PEMDAS, we must multiply 100 and 9 first, which gets us 900. Then divide 12 by 2, which gets us six. 900 - 2 + 6 = 898 + 6 = 904.
Answer:
904
Step-by-step explanation:
100 * 9 = 900 -2 =898 +12/2 →898+6= 904
12/2 = 6
Have a good day and stay safe!
The number of phone calls received by the complaint department of a
small company over a five day period is as follows:
28, 26, 33, 41,47
Find the mean deviation for this data.
Answer:
62.8
Step-by-step explanation:
Brainliest question please please help me please
A bank is offering a simple interest rate of 5% — that is, the bank will pay a fixed 5% of an initial investment as interest each year. By contrast, a stockbroker is offering a 4% interest rate compounded annually: 4% of the total value of the investment at the end of the year. If $1000 is invested in the bank and $1000 is invested with the stockbroker, after 4 years, what will be the total value of the two investments combined? Round to the nearest dollar.
Ratio of three angles of a triangle is 1 : 2 : 3. Find the angles.
Answer:
30⁰ , 60⁰ , 90⁰
Step-by-step explanation:
Let the angles x , 2x , 3x
By angle sum property:
x + 2x + 3x = 180⁰
6x = 180⁰
x = 30⁰
Angles are : 30⁰ , 60⁰ , 90⁰
Let one angle be x, the second 2x and the third 3x.
x + 2x + 3x = 180 degrees (angle sum property of a triangle)
6x = 180 degrees
x = 180/6
x = 30 degrees
So one angle is 30°, the second is 60°, and the third is 90°.
Work out the volume of this prism.
Answer:
840
Step-by-step explanation:
Lets split the shape in 2 shapes which gives us 2 rectangular prisms
1st shape is the one stcking upward: 12*5*6=360
2nd shape: (we must subtract 5 from 15 because we used that for the other shape and hat wouldn't give us the correct answer) 10*8*6=480
480+360=
840
Evaluate this expression for a = 3 and b = 4.
B
(a + 4)-
3(3 + 2)
+
3 - 2
OA. 6
OB.
9
O C.
11
OD.
8
Answer:
14
Step-by-step explanation:
a = 3
b = 4
[tex]b(a + 4)-3(3 + 2)+3 - 2\\a = 3,b=4\\4(3+4)-3(5)+3 - 2\\4(7)-15+3 - 2\\28-14\\\\14[/tex]
