Answers
Answer:
third one is correct
Step-by-step explanation:
PQ=√13
PR=6
QR=√13
Related Questions
20 points!
I need help!
I will also be doing a 50 point giveaway later!
Answers
Answer:
Step-by-step explanation:
I cant figure it out, and if I get this wrong I fail the test
Answers
Step-by-step explanation:
x = 1.21212121.....
100x = 121.21212121...
Therefore 99x = 120 and x = 120/99 = 40/33.
Answer:
[tex] \frac{40}{33} [/tex]
Step-by-step explanation:
hope it helpsss:-)
what is 1,005 x 105 i need help please
Answers
Answer:
105525
Step-by-step explanation:
Answer:
1,005 x 105 = 105,525
Hope this helped! Have a great weekend.
Given that f(x) = x2 – 14x + 45 and g(x) = 2 – 9, find f(x) – g(x) and
express the result in standard form?
Answers
Answer:
x2-14x+52 is the answer in my calculation.
PLS HELP
what is the slope of the line that contains these points
x 15,17,19,21
————————-
y -10,2,14,26
Answers
Answer:
6
Step-by-step explanation:
(15 , -10) (17 , 2)
slope (m) = rise/run = (2 - -10) / (17 - 15) = 12/2 = 6
2-(-10), or 2+10 since you’re subtracting a negative and they cancel out is equal to 12. Now take your two x points, 15 and 17. 17-15 is equal to 2. Take 12 and divide it by the 2, which is then 6. Hope this helps.
The class sizes of the Introductory Psychology courses at a college are shown below.
121, 134, 106, 93, 149, 130, 119, 128
The college adds a new Honors Introductory Psychology course with 45 students. What effect does the new class size have on the center and
spread of the class sizes of the Introductory Psychology courses at the college?
OA. The value of the center decreases and the distribution has a smaller spread.
O B. The value of the center increases and the distribution has a larger spread.
OC. The value of the center increases and the distribution has a smaller spread.
OD. The value of the center decreases and the distribution has a larger spread.
Answers
Answer:
pic of question
Step-by-step explanation:
option D) The value of the center decreases and the distribution has a larger spread.
What is the mean of a distribution?Mean is the measure of the central tendency or the average of the given numbers and is calculated by dividing the sum of given numbers by the total number of numbers.
Given here the distribution as 121, 134, 106, 93, 149, 130, 119, 128
therefore their mean is = (121+134+106+ 93+ 149+ 130+ 119+ 128)/8
= 122.5
Again after the new course was added the new mean is
= (121+134+106+ 93+ 149+ 130+ 119+ 128+45)/9
= 113.88
Hence clearly the mean has decreased and the distribution has a larger spread.
Learn more about the mean here:
https://brainly.com/question/13451489
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Gary went to the hardware store. He bought five boards for $8 each and a box of nails for $6. What was the change in the amount of money Gary had?
Answers
Answer:
$46 lessStep-by-step explanation:
Let Gary had x amount of money.
He spent:
$8*5 + $6 = $46He now has:
x - $46He has $46 less than had before
please help me with this math question T-T
Answers
6x + 3y = 12 solve for y
Answers
Answer:
Y= -2x+4
Step-by-step explanation:
Put it in slope intercept form
y=mx+b
Now subtract 6x on both sides to get y isolated
3y=12-6x
Now divide 3 on both sides to get y by itself
y=4-2x
Now in slope intercept form is
y= -2x+4
I need help please and thank you !
Answers
Answer:
π(12x^3y^5z)^2
Step-by-step explanation:
I doubt your teacher would want you to evaluate the whole thing but if they do leave a comment
Electricity Bill Charges
First 200 units 22p per unit
Remaining units 15p per unit
Mr Powers checks his electricity bill.
Here are his meter readings.
New reading:
Old reading
6538 units
6245 units
a)
Use subtraction to calculate the number of units used.
b)
Calculate the cost of the number of units used.
Answers
Answer:
a) 293 units
b) £57.95
Step-by-step explanation:
a)
New reading: 6538 units
Old reading : 6245 units
The amount use is the difference between the two readings.
6538 - 6245 = 293
Answer: 293 units
b)
293 is the same as 200 units plus another 93 units.
The first 200 units are charged at 22p per unit
Cost of the first 200 units: 200 units * 22p/unit = 4400p
Remaining units are charged at 15p per unit
Cost of the additional 93 units: 93 units * 15p/unit = 1395p
Total charge: 4400p + 1395p = 5795p = £57.95
Answer: £57.95
2. A line has an x-intercept of 2 and a y-intercept of 5. What is the slope
of the line?
Answers
Answer:
-5/2
Step-by-step explanation:
Use slope formula:
Given 2 points (x1, y1) and (x2, y2) Slope is
y2-y1/x2-x1
The x intercept is 2, the point would be (2,0)
The y intercept is 5, the point would be (0,5)
So you can do (5-0)/(0-2) which is 5/-2 which then would be -5/2
-5/2
Explanation:
We are given two points from the problem: (2,0) and (0,5). Using these two points, we can calculate the slope using the formula y2-y1/x2-x1 by plugging in points (x1,y1) and (x2,y2).
y2-y1/x2-x1
0-5/2-0
-5/2
Therefore, the slope of the line is -5/2.
I hope this helps!
2x + 4y = 24
if y = -3
then x = ____?
Answers
Answer:
x = 18
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityStep-by-step explanation:
Step 1: Define
2x + 4y = 24
y = -3
Step 2: Solve for x
Substitute in y: 2x + 4(-3) = 24Multiply: 2x - 12 = 24Isolate x term: 2x = 36Isolate x: x = 18Someone help please ASAP!!!!
Answers
The answer to this question is Option C.
As stated in the problem, both programs being Math Master (75% to 87%) and Excel (73% to 81%) increased, therefore, meaning they are both effective as the average test scores increased. However, Math Master had a higher average test score increase compared to Excel, meaning it is even more effective.
Hope this helps :)
Amber has been working very hard and finally got a salary increase of 100%. She was earning $200 per week. How much is she earning now? *
Answers
Answer:
$400
Step-by-step explanation:
Given that:
Earnings per week for Amber = $200
Total increase in the salary as per Amber's hard work = 100%
To find:
Earnings of Amber now?
Solution:
We are given the initial salary and its percentage increase.
We have to find the increased value of salary.
Increase in the salary = 100% of $200
[tex]\Rightarrow \dfrac{100}{100}\times \$200\\\Rightarrow \bold{\$200}[/tex]
Amber's Current salary = Initial salary + Increase in the salary
Putting the values of the initial salary and increase in the salary:
Amber's Current salary = $200 + $200 = $400
Jacob invests $6,047 in a retirement account with a fixed annual interest rate of 8% compounded continuously. What will the account balance be after 15 years?
A) $20,076.75
B) $17,280.22
C) $18,533.17
D) $21,640.41
Answers
R= 8%
T= 15
And key word is compound or simple
Yours is compound so A=p(1+r)^t you plug in number and it only give you total after you get that answer you subtract it with 6,047 and that should be your answer
which is better Financial manager or accountant?
Answers
Answer:
Financial manager sounds more professional.
Step-by-step explanation:
A package of 8 batteries costs $ 4.72 .What is the cost per battery?
Answers
Answer:
The cost of each battery is .59
Step-by-step explanation:
Divide 4.72 by 8 to get the answer
Answer:
$0.59
Step-by-step explanation:
$4.72 is the total cost of 8 batteries.
So, $4.72 ÷ 8 = $0.59
PLEASE HURRY !! Which point is located at (2, -3)?
Answers
Answer:
the answer is K for (2,-3)
a primary school has a running track.
it has two straights of 50 metres.
also there are two bends that are semicircles with diamter 30 metres
work out the distance around the running track
Answers
Answer:
Distance around the track = 194.3 metres.
Step-by-step explanation:
Given: The two straight sides are of the track are 50 metres each
Diameter of each bend = 30 metres
Thus;
radius of the bends = [tex]\frac{diameter}{2}[/tex]
= [tex]\frac{30}{2}[/tex]
= 15 metres
So that,
length of the semicircular bend = [tex]\frac{1}{2}[/tex] x 2[tex]\pi[/tex]r
= [tex]\pi[/tex]r = [tex]\frac{22}{7}[/tex] x 15
= 47.143
length of each semicircular bend is 47.14 metres.
Distance around the track = addition of the length of each straight sides + addition of the length of the bends
= 50 + 50 + 47.14 + 47.14
= 194.28
Therefore,
Distance around the track = 194.3 metres.
Write and solve an inequality that represents the number of apples, x, you can buy if each apple costs .75 cents and you have to spend less than $9.
Answers
Answer:
0.75x<9
Step-by-step explanation:
0.75x<9
0.75/0.75x < 9/0.75
x<12
Find the probability P(E or F) if E and F are mutually exclusive, P(E)=0.41 and P(F) = 0.47
P(E or F) =
Answers
Answer:
P(E or F)=P(E)+P(F)=0.41+0.47=0.88
As per the probability of an event, the probability P(E or F) is 0.88, when E and F are mutually exclusive.
What is probability of an event?"Probability is simply how likely something is to happen. Whenever we're unsure about the outcome of an event, we can talk about the probabilities of certain outcomes how likely they are.
Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates impossibility of the event and 1 indicates certainty. "
Given, the probability of the event E is P(E) = 0.41
The probability of the event F is P(F) = 0.47
Now, the probability P(E or F) is
= P(E) + P(F)
= 0.41 + 0.47
= 0.88
Therefore, P(E or F) = 0.88
Learn more about the probability of an event here: https://brainly.com/question/13974679
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Jan 258:00:56 AM
Watch help video
Write the equation of the line that passes thought the points (0,4) and (-9, -3).
Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal line.
Answers
Answer:
The equation of the straight line in point-slope form
[tex]y - 4 = \frac{7}{9} (x-0)[/tex]
The equation of the straight line
7x -9y +36 =0
Step-by-step explanation:
Step(i):-
Given that the points (0,4) and (-9,-3)
The slope of the line
[tex]m = \frac{y_{2} - y_{1} }{x_{2}- x_{1} } = \frac{-3-4}{-9-0} = \frac{7}{9}[/tex]
Step(ii):-
Equation of the straight line passing through the point (0,4) and having slope m = 7/9
[tex]y - y_{1} = m (x-x_{1} )[/tex]
[tex]y - 4 = \frac{7}{9} (x-0)[/tex]
9 y - 36 = 7x
9y = 7x + 36
[tex]y = \frac{7x}{9} +\frac{36}{9}[/tex]
Slope - intercept form
[tex]y = \frac{7x}{9} +4[/tex]
Final answer:-
The equation of the straight line in point-slope form
[tex]y - 4 = \frac{7}{9} (x-0)[/tex]
The equation of the straight line
7x -9y +36 =0
if the simple interest on $3,000 for 2 years is 300 then what is the interest rate
Answers
Answer:
The class sociologist Max Weber formulated a three-component theory of stratification that saw political power as an interplay between “class”, “status” and “group power. ” Weber theorized that class position was determined by a person’s skills and education, rather than by their relationship to the means of production
Answer:
Does that make sense??
Step-by-step explanation:
Have A Wonderful Day !!
Which of the following logarithms do not exist?
a) logarithms with fractional bases
b) logarithms of negative numbers
c) logarithms that equal zero
d) logarithms of irrational numbers
Answers
Answer:
B. logarithms of negative number don't exist
Answer:
B. logarithms of negative number
Step-by-step explanation:
Trapezoid ABCD is shown on the graph. If the trapezoid is rotated 90 degrees
counterclockwise about the origin and the resulting image is translated 6
units left, what are the coordinates of C"?
Answers
Answer:
The coordinates of C" are (-7, 4)
Step-by-step explanation:
If the point (x, y) rotated about the origin by angle 90° counterclockwise, then its image is (-y, x)If the point (x, y) translated horizontally to the left by h units, then its image is (x - h, y)From the given figure
∵ ABCD is a trapezoid
∵ The coordinates of the ponit C are (4, 1)
∴ x = 4 and y = 1
∵ The trapezoid is rotated 90 degrees counterclockwise about the origin
→ By using the 1st rule above, change the sigh of y and switch them
∴ C' = (-y, x)
∴ C' = (-1, 4)
∵ The resulting image is translated 6 units left
→ By using the 2nd rule above subtract the x-coordinate by 6
∴ C" = (x - h, y)
∵ h = 6
∵ x = -1 and y = 4
∴ C" = (-1 - 6, 4)
∴ C" = (-7, 4)
∴ The coordinates of C" are (-7, 4)
If the maximum value of y =-x²+ax+b is 8 when x = 3, find the values of a and b
Answers
0 = -2(3)+a
6=a
8=-(3)^2 +(3)(6)+b
b=-1
PLEASE ANSWER TODAY ASAP WILL GIVE BRAINLIEST TO FIRST CORRECT ANSWER.
A rectangle is 18 meters long and 25 meters wide.
What is the area of the rectangle?
1/40 m²
1/20 m²
/220 m²
5/16 m²
Answers
To find out the area of a rectangle, you multiply the length by the width.
18 x 25 = 250
Answer: 450 m²
Answer:
18 x 25 = 250
Answer: 450 m²
Step-by-step explanation:
Jev doesn't know you I am sorry...
will mark brainliy
Solve the Equation for f: -2/3f-4=10 *
Answers
Answer:
F=-21
Step-by-step explanation:
M a t h w a y
Find the length of side a .
how do I find the length of side a?
Answers
Step-by-step explanation:
might be correct
according to PythagorasAnswer:
A. 12
Step-by-step explanation:
AP3X