Step-by-step explanation:
given m = 3, p = 15 and n = 5,
[tex]2p - nm - 4 \\ = 2(15) - (5)(3) - 4 \\ = 30 - 15 - 4 \\ = 15 - 4 \\ = 11[/tex]
The PTA needs to know about how many parents will be coming to the March fundraiser. Which is the BEST method to use to estimate the number?
A) Send a survey home with each student.
B) Ask the parents who are at the February meeting.
C) Use the total number of students enrolled in the school.
D) Ask the students if their parents will be at the fundraiser.
Answer:
A or b
Step-by-step explanation:
-x + 2y = 6
4y - 2x = 11
-x + 2y = 6
x=− 6+2y
4y - 2x = 11
4y-2(-6+2y)=11
4y+12-4y=11
12=11
no solution
Graph the line that passes through the two points. Then find the slope of the line.
Answer:
Your slope is 1
Step-by-step explanation:
This is because you go up two boxes and to the right two boxes but then you have to simplify giving you a slope of 1
Find the value of x. Round to the nearest tenth. Assume that segments appearing to be tangents are tangent to the circle.
Answer:
x=8.4Step-by-step explanation:
[tex](2x)^{2} +12.6^{2} =21^{2} \\\\4x^{2} +158.76=441\\\\4x^{2}441-158.76\\\\4x^{2} =282.24\\\\x^{2} =70.56\\\\x=8.4[/tex]
hope it helps....
have a great day :)
Help me TwT I’m so confused
Answer:
Hello! It would be, A) two solutions
Step-by-step explanation:
Hope I helped! Brainiest plz! Have a nice day!♥ Hope you make a 100% -Amelia
I tried this problem out but I’m not sure if I’m right also this is a test worth 100 points can someone show me if u made any mistake can j explain also ?
Answer:
Median without outlier should be 40
For the bottom questions, it should go:
Decreases the mean, does not change the median, does not change the mode
It's decreasing the mean because it goes from 44.7 to 39
Median w/ and without outlier is both 40
Mode also stays the same w/ or without the outlier, which is 96
Write an equation for each line in Slope-Intercept Form
Answer:
Y = 4/3 - 1
Step-by-step explanation:
(3, 3) (0, -1)
m = 3+1/ 3-0
4/3 is the slope
2 Which quadratic function describes the
graphed parabola with zeros at x = 1 and x = 5?
у
6
5
4
13
2
1
х
-6543
-2
-1
0
23
4 51
6
-1
- 2
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F f(x) = -2(x - 3)2 + 8
G f(x) = -2x2 + 12x - 10
H f(x) = -0.5(x - 3)2 + 2
J f(x) = -0.5x² – 3x - 6
9514 1404 393
Answer:
H f(x) = -0.5(x -3)² +2
Step-by-step explanation:
The quadratic opens downward, so the leading coefficient is negative. All answer choices agree on this.
The vertex (maximum point) is (3, 2). Choices F and H are written in vertex form. Choice F has a vertex of (3, 8); choice H has a vertex of (3, 2), so is a likely candidate.
When we look at the graph 1 unit right or left of the vertex, we see that it is about 1.5, that is, 0.5 units below the vertex. This 0.5 is the magnitude of the leading coefficient, which we already know is negative. The leading coefficient of -0.5 eliminates choices F and G.
So, choice H has the correct leading coefficient and the correct vertex.
Choice J can be eliminated by looking at the value for x=0. For J, it is -6, but we see the y-intercept of the graph is -2.5. This eliminates choice J.
The only viable choice is H.
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
The equation is ;
4x - y = 13
Step-by-step explanation:
The general equation of a straight line is;
y = mx + b
where m is the slope and b is the y-intercept
from what we are given, let us write the second equation in the general form
x + 4y = 10
4y = -x + 20
y = -1/4x + 20/4
y = -1/4x + 5
mathematically, when two lines are perpendicular, the product of their slope is -1
So for the second line with slope m2
m2 * -1/4 = -1
m2 = 4
So, using the general form, we have the equation as;
y = 4x + b
To get the value of b, we substitute the coordinates of the given point (3,-1)
-1 = 4(3) + b
-1 = 12 + b
b = -1-12
b = -13
So the equation is;
y = 4x - 13 which can be rewritten as;
4x-y = 13
Which of the following is a good example of inflation? OA. You get a raise and the price of gas goes down. OB. You get a second job and you increase your net income by 15%. O c. The price of gas went from $4.00 last month to $4.25 this month. OD. The price of gas goes down from $4,25 last month to So thir
Answer:
C. The price of gas went from $4.00 last month to $4.25 this monthStep-by-step explanation:
The inflation is when prices for most of the goods increase with much less income raise.
Closest answer choice is C, provided it was followed up by price increase of most goods.
Simplify the expression.
(–8x) • 3x2
A. –5x3
B. –24x2
C. –24x3
D. –5x2
Answer:
-48 b
Step-by-step explanation:
Can someone really help me please
Answer:
1-B, 2-B, 3-B, 4-B, 5-A
Find the midpoint of points A(9, -2) and B(-1,8) graphically.
Answer:
the midpoint is (4,3)
Step-by-step explanation:
Help I will give you brainliest
Answer:
b- 3/5
Step-by-step explanation:
divide 6 from both numbers
Answer:
B, 5/3
Step-by-step explanation:
hope this helps have a good day :)
Please help please please help me with my work
Answer:
Question 4 is False
Question 5 is True
find the volume of the sphere. leave your answer in terms of pi
r=4
Answer:
To find an answer in pi square the radius and multiply by pi
Step-by-step explanation:
To
find volume of a sphere = 4/3Πr³
Answer =17,164.2pi Am not sure but i hope its correct.
The daily cost of hiring a plumber, y, to work x hours on a repair project can be modeled
using a linear function. The plumber charges a fixed cost of $80 plus an additional cost of
$45 per hour. The plumber works a maximum of 8 hours per day.
For one day of work, what is the range of the function for this situation?
A0
B 80
C 0
D 45 < < 685
Answer:
i have the same question
Step-by-step explanation:
i have the same question
long division
[tex]23 \sqrt{6783} [/tex]
HELPP ME PLEASEEE ITS DUE TODAY!!!!
Answer:
c= 3/4 but in decimal form it will be 0.75
Step-by-step explanation:
Answer:
The answer is 3/4.
Check the pic for explanation
thank you:)
if it is correct please mark me brainliest
Can someone help me on this plzzz
Answer:
22
Step-by-step explanation:
6^2=36
36*2=72
6*8=48
72-48=24
24-2=22
I hope this is right
Which statement about isosceles triangles is true?
A. all isosceles triangles are equilateral triangles
B. isosceles triangles do not have three side lengths
C. all isosceles triangles have one angle that is equivalent to
D. not all isosceles triangles are also classified as equilateral triangles
Write an explicit formula for the geometric sequence below and use it to find the 9th term. 256, 64, 16, 4, . . .
im doing this problem right now---
ok so a1=256 a2=64 a3=15 a4=4... find a9
the sequence divides by 1/4 every term
an=a1*r^n-1
an=(256)*(1/4)^n-1
replace n with 9
A9=(256)*(1/4)^9-1
A9=(256)*(1/4)^8
=(256)*(1/4)
A9=64^8
1/256 or a9= 0.00390625
The given dot plot represents the average daily temperatures, in degrees Fahrenheit, recorded in a town during the first 15 days of September. If the dot plot is converted to a box plot, the first quartile would be drawn at , and the third quartile would be drawn at .
Answer:
Q1 = 61
Q3 = 63
Step-by-step explanation:
From the plot attached :
Data obtained is :
Temperature frequency
59 0
60 2
61 3
62 3
63 4
64 2
65 1
Frequency Total 15
Data in raw format :
60,60,61,61,61,62,62,62,63,63,63,63,64,64,65
The first quartile :
Q1 = 1/4(n+1)th term
n = 15
Q1 = 1/4(15+1)th term
Q1 = 1/4 * 16th
Q1 = 4th term
Q1 = 61
Third quartile (Q3):
Q3 = 3/4(n+1)th term
n = 15
Q3 = 3/4(15+1)th term
Q3 = 3/4 * 16th
Q3 = (48/4)th term
Q3 = 12th term
Q3 = 63
Answer:
Q1 is 61 and Q3=63
Solve the problem and enter your answer below.
What is 62% of 29?
The line segment between (9,6) and (-2,-1) is bisected at (3.5,2.5). Find the y-intercept of the perpendicular bisector.
Ans: y-intercept = (0, _____)
Answer:
Y-intercept is (0,8)
Step-by-step explanation:
Firstly, we need to get the equation of the line segment
We have the general equation as;
y = mx + b
m is the slope and b is the y-intercept
So for the slope between (9,6) and (-2,-1); we have
m = (y2-y1)/(x2-x1)
m = (-1-6)/(-2-9) = -7/-11 = 7/11
Mathematically, when two lines are perpendicular, their slopes have a product of -1
Let the slope of the second line be m
m * 7/11 = -1
7m = -11
m = -11/7
The equation of the second line is;
y = mx + b
y = -11x/7 + b
The line passes through the point (3.5,2.5)
So,
2.5 = -11/7(3.5) + b
2.5 = -5.5 + b
b = 2.5 + 5.5
b = 8
so the y-intercept of the perpendicular bisector is 8
In 0.98, In which place is the 8?
Answer:
hundredths place
Step-by-step explanation:
hope this helps
Answer:
hundredths' place
Step-by-step explanation:
The first digit after the decimal represents the tenths place. (In this case, it's 9) The next digit after the decimal represents the hundredths place. In this case, it's 8 !
An airplane flies 2720 km in 4 hours calculate the average speed in kilometers per hour?
Answer:
680 km/hr
Step-by-step explanation:
[tex]\frac{2720 km}{4 hr}[/tex]=680 km/hr
Answer:
680 km/hr
Step-by-step explanation:
Given,
Distance ( d ) = 2720 km
Time ( t ) = 4 hours
To find : -
Average speed = ?
Formula : -
Average speed = d / t
Average speed
= 2720 / 4
= 680 km/h
9
1 point
Karla needs a box to pack her fish tank shown below. How many square feet of cardboard does she need to buy?
5
4 ft
6
2ft
6 ft
7
56 ft2
48 ft2
8
Ο Ο Ο Ο.
32 ft2
88 ft
Next
10
Previous
Answer:
give the full questions
Which of the following is an equation of the circle with a center at (-1,4) and a radius of 2√5 units? plss pahelp naman
A. x²+ y²+2x-8y-3=0
B. x²+y²-2x-8y+3=0
C. x²+y²+2x+8y-3=0
D. x²+y²-2x+8y+3=0
Answer:
Option A
Step-by-step explanation:
The standard form of an equation of a circle is represented by the formula [tex](x-h)^2+(y-k)^2 = r^2[/tex]. Remember that [tex](h,k)[/tex] is the center and [tex]r^2[/tex] is the radius squared.
So, the equation of the circle must be [tex](x+1)^2 +(y-4)^2 = 20[/tex]. Complete the square to change the form of the equations listed in the options and find the one that is equal.
Let's try this with option A. Move the constants to the right side, then use the completing the square method to place the equation in standard form:
[tex]x^2 + y^2 +2x -8y -3 = 0\\x^2 + y^2 +2x-8y = 3\\x^2 + 2x +y^2-8y = 3\\(x^2 +2x+1)+(y^2-8y +16)=3+1+16\\(x+1)^2 + (y-4)^2=20[/tex]
The end result matches with the equation determined before, so option A is the answer.
pls help me out! how do you determine the period of the graph?
Answer:
4π
Step-by-step explanation:
Periodic graphs repeat the same pattern. Here we have a cosine function which clearly repeats itself. Start at (0, 1) and count the number of squares to the right before the graph looks the same; this occurs at (4π, 1). x has increased from 0π to 4π. Thus, the period is 4π.