Unfortunately there's not much we can say other than
[tex]\text{distance} = \sqrt{ (x_1-x_2)^2+(y_1-y_2)^2}\\\\\text{distance} = \sqrt{ (a-c)^2+(b-d)^2}\\\\[/tex]
If we knew the numbers that replace a,b,c,d, then we could compute the actual numeric distance.
What is the equation of the line in point-slope form and slope-intercept form that is
perpendicular to the line
4x - 3y = 30 and passes through the point (-8, 7)?
9514 1404 393
Answer:
y -7 = -3/4(x +8)y = -3/4x +1Step-by-step explanation:
The slope of a line in the form ...
ax +by = c
is ...
m = -a/b
So, the slope of the given line is ...
-4/(-3) = 4/3
The slope of the perpendicular line is the opposite reciprocal of this,
m' = -1/(4/3) = -3/4
__
The point-slope equation of a line is ...
y -k = m(x -h) . . . . . . . . line with slope m through point (h, k)
Then your perpendicular line with slope -3/4 through point (-8, 7) is ...
y -7 = -3/4(x +8)
Rearranging to slope-intercept form, we get ...
y = -3/4x -3/4(8) +7
y = -3/4x +1
True or false?
Two samples are selected from a population, and a treatment is administered to the samples. If both samples have the same mean and the same variance, you are more likely to find a significant treatment effect with a sample of n = 100 than with a sample of n = 4.
True, two samples are selected from a population, and a treatment is administered to the samples. If both samples have the same mean and the same variance, you are more likely to find a significant treatment effect with a sample of n = 100 than with a sample of n = 4.
What is the mean?The average of a group of variables is referred to as the mean in mathematics and statistics. There are several methods for calculating the mean, including simple arithmetic means (adding the numbers together and dividing the result by the number of observations), geometric means, and harmonic means.
Given:
Two samples are selected from a population, and a treatment is administered to the samples.
If both samples have the same mean and the same variance.
That means, they have the same t statistic.
A t-test compares the average values of two data sets and determines if they came from the same population.
You are more likely to find a significant treatment effect with a sample of n = 100 than with a sample of n = 4.
Because the value of t-test are same.
Therefore, the statement is true.
To learn more about the mean;
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What is the range of the following function?
Answer:
[tex][-5,5][/tex]
Step-by-step explanation:
The range is the y-axis, and the endpoints are filled in, so we put brackets.
Side note:
This is called Interval Notation. This is very important when you ask for the domain and range of functions (domain is for the x-axis). You will see this system A LOT, so you have to get used to the name and the language Interval notation uses.
What is the range of the function y = x2?
The range of the function y = x2 is all real numbers, y, such that y ≥ 0.
Find the sum.
12Σn=1 3n +1
a. 252
b. 234
c. 246
Answer: C
Step-by-step explanation:
[tex]Method\ 1\\\\\displaystyle \sum _{i=1}^{12} (3i+1)=\dfrac{((3*12+1)+(3*1+1))*12}{2} =(37+4)*6=246\\\\Methode\ 2\\\\\displaystyle \sum _{i=1}^{12} (3i+1)=\sum _{i=1}^{12} (1)+3*\sum _{i=1}^{12} (i)=12+3*\dfrac{(12+1)*12}{2} =12+3*13*6=246\\[/tex]
Answer C
PICTURE ABOVE PLEASE HELP ME
Answer:
The answer would be B ) a = 12, b = 9 , c = 15
Step-by-step explanation:
calculator
Please help with this question. Thank you!
Answer:
7
Step-by-step explanation:
There are a few different methods of which you can solve this problem:
Method #1
Lets break this shape into 3 parts, First the large square, then the rectangle and then the triangle. First we can find the area of the square by multiplying 2 by 2 which will be 4,
Now lets work on the rectangle, Since we cut the square out of this shape, We are left with a rectangle of which the sides are 2 and 1, now you can multiply and get 2.
We are left with the triangle, This triangle has a side of 1, and 2 , which is 2, but we have to divide by 2, which is one.
Now add all of them together 4+2+1 = 7.
Method #2
You can multiply 4 by 2 then subtract the area of the triangle.
Alright, 2X4 is 8, now the are of a triangle is BH/2 lets substitute Base = 2,
Height = 1, 2*1/2 = 2/2 = 1
8-1 = 7
If you still have any questions ask me.
Hope this helped :)
Help will give Brainly points
Answer:
AAS (Angle Angle Side) shows congruence.
Step-by-step explanation:
Basically if you have Two Angles and a side length, which you do, by rule of congruence the rest of the triangle will be equal because two angles and a side length are equal.
S = 2lw + 2wh + 2hl, solve for h (surface area of a rectangle)
Answer:
h = (S - 2lw)/(2w + 2l)Step-by-step explanation:
Given formula:
S = 2lw + 2wh + 2hlSolve for h:
2wh + 2lh = S - 2lwh(2w + 2l) = S - 2lwh = (S - 2lw)/(2w + 2l)Answer:
[tex]s = 2lw + 2wh + 2hl \\ s = 2(lw + wh + hl) \\ \frac{s}{2} = lw + wh + hl \\ \frac{s}{2} - lw = h(w + l) \\ h = \frac{ \frac{s}{2} - lw}{w + l} \\ thank \: you[/tex]
WILL GIVE BRAINLEST
PLS HELP...
Answer: what yo grade
Step-by-step explanation:
Fill in the missing work and justification for step 5 when solving 4(x + 1) = 8.
4(x + 1) = 8
4x+4=8
4x=8-4
4x=4
x=4/4
x=1
Answer:
4x − 4 = 4 − 4; Subtraction Property of Equality
Step-by-step explanation:
Dana can type nearly 90 words per minute. Use this information to find the number of hours it will take her to type 2.6 x 105 words ,convert between standard decimal notation and scientifc
We can solve this problem by using the fact that speed of typing is defined as the words typed in unit time.
Dana will type [tex]2.6\times 10^5[/tex] words in 48.15 hours.
It's given in the question,
Dana can type 90 words per minute.Since, 1 minute = [tex]\frac{1}{60}[/tex] hours
Therefore, number of words she can type = [tex]\frac{90}{\frac{1}{60}}[/tex]
= 90×60
= 5400 words per hour
She types [tex]2.6\times 10^5[/tex] words in 'x' hours.Number of words Dana types with the given speed in 'x' hours = Speed of typing × Time
= [tex]5400\times x[/tex]
Therefore, [tex]5400\times x =2.6\times 10^5[/tex]
[tex]5400x=260000[/tex]
[tex]x=\frac{260000}{5400}[/tex]
[tex]x=48.15[/tex] hours
Therefore, Dana types [tex]2.6\times 10^5[/tex] words in 48.15 hours.
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Kim worked these hours last week: Monday 8, Tuesday 7.5, Wednesday 6.5, Thursday 3, and Friday 9 hours. She is paid $20.25 per hour. (a) How many hours did Kim work last week? (b) What was her gross pay for the week?
Hours (a) Gross Pay ()
5 out of 9 members of the Roxton Riding Club use western saddles. The rest of the members either ride English or Australian saddles. If there are 90 people on The RRC, how many use western saddles?
A- 10
B- 18
C- 40
D- 50
Answer:
10??? I Think...
I need some help in figuring out the bottom left blank ASAP! Please Help
Answer:
Inequality notation R
Step-by-step explanation:
Domain is represented by the letter D
Range is represented by the letter R
HELP PLZZZZZZZZZZZZZZZZZZZZZ FAST
Answer:
Three axis given
[tex]\\ \sf\longmapsto \overleftrightarrow{HI}[/tex]
[tex]\\ \sf\longmapsto \overleftrightarrow{EF}[/tex]
[tex]\\ \sf\longmapsto \overleftrightarrow{GJ}[/tex]
Now
All are intersected at one point G
Hope thia help u!!!!!...:/)
26 POINTS HELP ASAP!
A banker has an annual income of $75,234. The income tax she has to pay is 7%. What is the amount of income tax the banker has to pay?
(NUMBERS ONLY NO $ SIGN NO COMMA)
A banker has an annual income of $75,234. The income tax she has to pay is 7%. What is the amount of income tax the banker has to pay?
Solution:To solve the problem, we need to use the formula. P = B × R
Percentage = Base × RateP = B × RP = 75,234 × 7%P = 75,234 × 0.07P = 5,266.38Answer:Therefore, the amount of income tax the banker has to pay is 5,266.38.Solve this problem and show the steps please because I’m so confused
Answer:
0
Step-by-step explanation:
You use BIDMAS
Brackets: 10÷5=2
-2 ² =-4
Multiplication: -4×2=-8
Addition: -8+2=-6
Subtraction: 6--6=0
Answer:
= 0
Step-by-step explanation:
6 - {[tex]{10 /5}^{2}[/tex]} × 2 +2
solve the brackets first
6 - {[tex]10^{2}[/tex] ÷[tex]5^{2}[/tex]} × 2 +2
6 - {100 ÷ 25} × 2 +2
6 - {4} × 2 +2
6 - 8 +2
6-6
= 0
Simply the expression below using order of operations (5^2 -6^2)+5(8-12 ÷3)
Answer:
9
Step-by-step explanation:
The first operation is what inside the braces
1-first comes the multiple and the division
2- then the + and the -
1- (25-36)+5(8-4)
2- (25-36) + 5×4
3- (-11) + 20 =9
Stephanie is making smoothies. She needs 1/3 cup of milk and 3/4 cup of bananas.How many total cups of ingredients does she need?.
Answer:
1 and 1/12
Step-by-step explanation:
1/3 + 3/4 = 1 and 1/12
Is 12.25 a rational number
Answer:
Yes
Step-by-step explanation:
May have brainliest
Answer:
Yes.
Step-by-step explanation:
A rational number is one that ends, so yes.
7=5y-13-y
Solving linear equations please help meeee i need your help
20 points for you if you help me please
Step-by-step explanation:
7=4y-13
7+13=4y
20/4=y
5=y
Answer:
[tex]7 = 5y - 13 - y \\ 7 + 13 = 5y - y \\ 20 = 4y \\ y = \frac{20}{4} \\ \boxed{y = 5}[/tex]
y = 5 is the right answer.The diagram below shows a sketch of part of the graph y = ax+ bx + 3.
The two points V and W each lie on the graph and have co-ordinates (-1,10) and (2.13).
W
(2,13)
V
(-1,10)
Diagram is
NOT to scale
Find the values of the numbers a and b.
Answer:
Step-by-step explanation:
There appears to be a problem with your equation as it can be reduced to
y = (a + b)x + 3
which is a line of slope (a + b) and y intercept of 3
plugging in our points
10 = -1(a + b) + 3
7 = -1(a + b)
a + b = -7
13 = 2(a + b) + 3
10 = 2(a + b)
a + b = 5
a + b cannot equal both 5 and -7 at the same time.
I will GUESS that you mean y = ax² + bx + 3
10 = a(-1)² + b(-1) + 3
10 = a - b + 3.
b = a - 7
13 = a(2)² + b(2) + 3
13 = 4a + 2b + 3
10 = 4a + 2b
10 = 4a + 2(a - 7)
10 = 4a + 2a - 14
24 = 6a
a = 4
b = 4 - 7
b = -3
How tall is the table?
Answer:
what table
Step-by-step explanation:
“If a population is growing at a rate of 3% per year, how long will it take to double? Show work.”
Thank you!
What does not contain an irrational number?
Answer:
i think it's the first option.
Answer:
A. ( well... The first option)
Step-by-step explanation:
Any number that can be written as a fraction with integers is called a rational number. Which the numbers on option one is a perfect example of a rational number instead of a irrational number.
Fill in the missing terms for the geometric sequence
What is the common ratio for this geometric sequence?
___, -11, 22, ___, 88, -176
Common ratio:
Step-by-step explanation:
11/2, -11, 22, -44, 88, -176
common ratio : 22/(-11) = -2
A bag is filled with green and blue marbles. There are 41 marbles in the bag. If there are 15 more green marbles than blue marbles, find the number of green marbles and the number of blue marbles in the bag.
Find the solution by setting up an equation. You have two choices for how you will pick your variable. For each of the following variable choices, write an equation (just set up the equation, do not solve it yet) that describes the relationship between the number of green marbles, the number of blue marbles, and the total number of marbles in the bag:
there will be 26 blue marbles
Step-by-step explanation:
41-15=26
You buy halibut at $18 per pound. One portion of seared halibut requires 6 ounces of halibut. How much does the halibut for one portion cost?
The appropriate answer will be "$6.75".
According to the question, the value is:
1 pound of halibut cost,
= $18
We know that,
1 pound = 16 ounceTherefore,
16 ounce of halibut cost will be,
= $18
hence,
→ The 6 ounce if halibut will cost,
= [tex]\frac{18}{16}\times 6[/tex]
= [tex]\frac{108}{16}[/tex]
= [tex]6.75[/tex] ($)
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The triangle inequality Theorem states that the sum of the lengths of any two sides of the triangle is greater than the length of the third slide. The lengths of two sides of a triangle are 14ft and 27ft. Find the possible lengths of the third side
The third slide must have a length greater than __ft and less than _ft
Answer:
12 < x < 42 or x | ( 12,42 ) ft.
Step-by-step explanation:
15 + 27 = 42; 27 − 15 = 12 . Therefore the third side must be
less than 42 ft ant greater that 12 ft. Therefore possible length
of third side of size x is 12 < x < 42 or x | ( 12,42 ) ft [Ans]
