Select the correct answer Which equation represents a line that is perpendicular to line MN?
Answer:
D. y = 4x - 6
Step-by-step explanation:
The equation that is perpendicular to the line MN should have a slope that when multiplied by the slope of line MN will result to negative one. Therefore,
Therefore,
m₁ × m₂ = -1
Using the 2 coordinates of MN let's find the slope,
(-7, 6)(5, 3)
Therefore,
m₁ = 3 - 6 / 5 - (-7) = -3 / 12 = - 1 / 4
The equation that represent a line perpendicular to the line MN is
y = 4x - 6 because the slope slope(m₂) is 4.
From our formula,
4 × - 1 / 4 = - 1
So, option D meets the requirement.
Answer:
D. y = 4x - 6
Step-by-step explanation:
Find the slope of the line that passes through the points (4,1) and (-2.7).
What is the slope of a line perpendicular to this line?
Answer:
the slope=-1 the slope perp=1
Step-by-step explanation:
to find slope perpendicular you just have to multiply your slope by something and have it equal -1
for example
1/2x=-1
the slope perpendicular to a line with the slope of 1/2 would be -2 beacause 1/2x-2=-1
so the slope x perpendicular slope = -1
Look at pic ! The length of each of two sides of a triangle is 15. The third side's length is 1572. Classify the triangle.
A) 30-60-90 scalene triangle
B) 30-60-90 isosceles triangle
C) 45-45-90 isosceles triangle
D) 45-45-90 scalene triangle
Answer The correct answer to the following question is not provided U need to do it your self lol jk answer is d
Step-by-step explanation:
Which situation is an example of an observational study?
Answer:
D- Recording the reaction time of participants in a study who were asked to press a button as soon as they see a certain picture on a screen.
Step-by-step explanation:
The situation is an example of an observational study is "Recording the reaction time of participants in a study who were asked to press a button as soon as they see a certain picture on a screen:.
What is an observational study?When researchers monitor the effect of a risk factor, diagnostic test, therapy, or other intervention without attempting to influence who is or is not exposed to it in observational studies.
For example: Consider someone standing on a popular street in a New York neighborhood asking passers-by how many dogs they have, then analyzing the data to see if more pet food businesses are needed in the area.
As we know that in an observational study, the sample whose test/survey is been taken is completely random.
Therefore, the situation that is an example of an observational study is " Having customers fill out a questionnaire about their favorite brand of toothpaste".
Learn more about Observational Study here:
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On a farm, there are 75 pigs, 18 horses, 130 cows, and 25 chickens.
Find the ratio of the number of cows to the total number of animals.
A) 25 : 248
B) 65: 124
C) 75 : 248
D) 9: 124
Answer:
are u sure there are 130 cows?
David made an error when determining the product of (–2.5)(–8.3).
Step 1: (–2.5)(–8.3) = (–8.3)(–2.5)
Step 2: = (–8.3)(–2) + (–8.3)(–0.5)
Step 3: = (–16.6) + (–4.15)
Step 4: = –20.75
In which step did David make his first error?
Answer:
step 3
Step-by-step explanation:
when you multiply an even amount of negative numbers you will always get a positive result thus the answe would be 16.6 + 4.15 as in positive numbers
Which numbers are solutions to the equation 30=x2?
If you meant 2x, x is 15; if you meant x^2, the answer is the square root of 30
400x2 pls answerrr I give brainliest to first question ahhh pkssskjwaaseeee granny answer
Answer:
800, just say my name and ill be there
Step-by-step explanation:
Find the value of x.
M1= 3x + 7 and m5 = 25
Answer:
x=9
Step-by-step explanation:
m5=m1 so
25=3x+7
18=3x
x=9
=
. Consider the polynomial function p given by p(x) = 5x3 + 8x2 – 3x + 1. Evaluate the
function at x = -2.
Answer:
hope it helps u............
which of the following descriptions could represent the Venn diagram?
Answer:
Step-by-step explanation:
it will be c
The correct description represent in Venn diagram is;
''Of 9 families, 4 own a pet The Venn diagram represents the families that own a pet.''
What is Venn diagram?
Venn diagram is an illustration that uses circles to show the relationships finite groups of things.
Given that;
Number of family = 9
Number of pets = 4
Now,
In the Venn diagram;
Own pet (circle) contain in number of family (rectangle), that's mean every family has 4 own pet.
Thus, The correct description represent in Venn diagram is;
''Of 9 families, 4 own a pet The Venn diagram represents the families that own a pet.''
Learn more about the Venn diagram visit:
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What is the written form of the decimal number 9549?
Answer:
9.549
....... ..........
A researcher wants to estimate the likelihood that the baseball player will hit 2 home runs in a single game, given that the player hits a home run once in every 13 times at bat. Which type of study is most suitable for data collection in this situation?
A. experimental
B. census
C. survey
D. simulation
1. Write a polynomial function of least degree with rational coefficients so that P(x)=0 has the given roots.
x = -4, x= 8
2. A polynomial function p(x) with rational coefficients has the given roots. Find two additional roots of p(x)=0.
18-square root of 7 and 4i
3. Find all the zeros for the following function.
Y=x^3-5x^2+9x-45
1. If a polynomial function with rational coefficients has -4 and 8 as roots, it means we can factor this polynomial this way :
(x - (-4))(x-8) = (x+4)(x-8) = x² - 8x + 4x - 32 = x² - 4x - 32
1x² - 4x - 32 is a polynomial function of least degree with rational coefficients that satisifies the given conditions. The leading coefficient here is 1, we call this a monic polynomial.
2. There may be something missing in the question here
3. We can use the factoring techniques to find the roots :
x^3 - 5x² + 9x - 45 let us group x^3 with -5x² and 9x with -45 :
(x^3 - 5x²) + (9x - 45) = x²(x - 5) + 9(x - 5)
We can notice now that there is a common factor : (x-5) this allows us to factor again by (x-5) :
Y = (x-5)(x²+9)
This is the maximum we can do on R, but on C the set of complex we can still factor again.
x² + 9 has a negative discriminant : Δ = b² - 4ac where b = 0 , a = 1, c = 9
Δ < 0, Δ = - 36
Applying the formulas for the roots x1 and x2 we get x1 = -3i, and x2 = + 3i
Y = (x-5)(x-3i)(x+3i)
So the solution is S = {5, 3i, -3i} the three roots of the function.
Two shops, Lidal and Oldi, sell the same brand of toilet rolls but with different package sizes.
Calculate the price per roll for each shop.
Write which shop is the best value for money in the comment box.
Step-by-step explanation:
Lidal : 9 rolls for £3.51
1 roll for 3.51/9 = £0.39
Oldi : 4 rolls for £1.52
1 roll for 1.52/4 = £0.38
so, Oldi has the best value for money when buying toilet rolls.
In circle S with the measure of arc RT= 62°, find mRST.
Answer: think its 41
Step-by-step explanation:
What is the square root of 120?
10.95
Simplified: √120 = 2√30
How can I solve for x
Answer:
x = 10
Step-by-step explanation:
In similar polygons, the lengths of the sides are proportional.
(3x + 5)/42 = 30/36
(3x + 5)/42 = 5/6
6(3x + 5) = 5 × 42
18x + 30 = 210
18x = 180
x = 10
Answer:
x=10
Step-by-step explanation:
7.
[tex]\frac{3x+5}{42} =\frac{30}{36} \\3x+5=\frac{30}{36} \times 42\\3x+5=35\\3x=35-5=30\\x=\frac{30}{3} =10[/tex]
Find the part Q for me please
Answer:
how. :. i don't know what gives me a example that
Jack and Shelly have saved up a total of $29.00. Jack has saved 4 dollars more than 2/3 as much as Shelly. How much has Shelly saved?
Answer:
i think 15 if thats on your answer sheet
Step-by-step explanation:
Question 1 Draw a line through the point (−2,−2) with a slope of 1/4. Draw a line through the point (2, 0) with a slope of 1/4.
Answer:
line1：[tex]y=\frac{1}{4}x-\frac{3}{2}[/tex]
line2: [tex]y=\frac{1}{4}x -\frac{1}{2}[/tex]
Step-by-step explanation:
18(3+14) x 6(21+4)
With and without distributive property
PLZ HELP!!! WILL GIVE BRAINLIEST!!! State whether each conditional is true or false. Write the contra positive for the conditional and state whether the contrapositive is true or false.
1. If you ride a roller coaster, then you will experience sudden drops.
2. If you only have $15, then you can buy a meal that costs $15.65.
Step-by-step explanation:
TrueFalseHope it is helpfulAnswer: question 1 If you are going over the top of a hill or rollercoaster quickly, you could feel your stomach drop or stomach sink. In actuality, it's probably the sensation of all your internal organs shifting slightly in your ribcage as your body defies gravity for a few seconds.
Step-by-step explanation: i do not know the 2 question im sorry mabye question 1 may help if not thaks ok bye :)
Tell whether the lines through the given points are parallel, perpendicular, or neither.
Line 1: (6, 5), (4,2)
Line 2: (-8, -1), (-2, 8)
Answer: Line 1: (2, 3) , (4, 12)
m = (12 - 3)/(4 - 2) = 9/2 This is the slope of the line
y = (9/2)x + b
3 = (9/2)(2) + b
3 = 9 + b
b = -6
y = (9/2)x - 6
Line 2: (5, 10) , (14,8)
m = (8 - 10)/(14 - 5) = -2/9
this slope is the opposite sign, and inverse of the first equation's slope. Therefore, the line is perpendicular.
y = mx + b
8 = (-2/9)(14) + b
8 = -28/9 + b
11.11 = b
y = (-2/9)x + 11.11
Step-by-step explanation: Hope this helps :)
percent change of 10 and 24
Answer:
140%
Step-by-step explanation:
(24-10) / 10 = 14/10 = 140%
Answer:
140%
Step-by-step explanation:
A change from 10 to 24 represents a positive change (increase) to 140%.
Percent change = New-Old/Old x 100%
Percent change = 24-10/10 x 100% =
14/10 x 100 = 140% (increase)
Where 10 is the old value and 24 is the new value. In this case, we have a positive change (increase) of 140 percent because the new value is greater than the old value.
pls help ill give brainliest
Answer:
4
Step-by-step explanation:
-5g -6
Let g= -2
-5 (-2) -6
Multiply
10 -6
4
Answer:
A. 4
Step-by-step explanation:
So, we have an equation with a variable (g), and they've given us the value of g to be -2. All we have to do at this stage is plug in the value of g into the equation.
-5g-6 (g=-2)
-5(-2)-6
10-6=4
Doing the math by plugging in -2, you would get your answer to be 4. Let me know if you see any errors, and if you have any further questions at all.
need help with this part
Answer:
1. 42 people can be seated
2. 16 tables should be used.
Step-by-step explanation:
Part 1:
Since we are given the function, p(n) = 4n + 2, we need to plug in 10 to "n." This is because "n" represents the number of tables as stated on the top of the pciture. And "p(n)" represents the number of people that can be seated.
p(n) = 4(10) + 2
p(n) = 40 + 2
p(n) = 42
Part 2:
For this question, since we are given 65 as the total number of people that can be seated, we would plug in 65 in "p(n)", to result in the following equation.
p(65) = 4n + 2
Then solve the equation and use the property of inverse operation.
65 = 4n + 2
65 - 2 = 4n + 2 - 2
63 = 4n
63/4 = 4n/4
15.75 = n
Although we're given 15.75 as the number of tables that should be used, we can't really have a 0.75 of a table, so we would round 0.75 to 1.
15 + 1 = 16
16 tables are required.
10^2= ?
If you like Rollercoaster vids pls subscribe to SR Vlogs (Rollercoasters) on yt ❤️❤️
Answer:
100
Step-by-step explanation:
Ok I will sub!
~~~~~~~~~~~~~~~~~~~~~~~~~~~
someone plz help - giving brainliest
Answer:
We know that,
[tex]a^{x} *a^{y} =a^{x+y}[/tex]
[tex]a^{-x} =\frac{1}{a^{x} }[/tex]
[tex]\frac{1}{a^{-x} } =a^{x}[/tex]
Let's solve now
[tex]\frac{3^{4} *5^{2} }{5^{8}*5*3^{-1} }[/tex]
[tex]\frac{3^{4}*3^{1} }{5^{-2} *5^{8} *5}[/tex]
[tex]\frac{3^{4+1} }{5^{-2+8+1} }[/tex]
[tex]\frac{3^{5} }{5^{7} }[/tex]
Therefore,
[tex]\frac{3^{5} }{5^{7} } = \frac{3^{w} }{c^{x} }[/tex]
So,
w = 5
c = 5
x = 7
Hope this helps you.
Let me know if you have any other questions :-)
