Answer:
X=5
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
5x-2=2x+13
-2x -2x
3x-2=13
+2 +2
3x=15
divide 15 by 3.
-7x+21y=63 what are the x and y intercepts
Answer:
x intercept: (-9,0)
Y intercept: (0,3)
Which factors of -12 add to -1?
py link
4 and - 3
6 and -2
-4 and 3
-12 and 1
-6 and 2
12 and -1
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Answer:
-4 and 3
Step-by-step explanation:
8 increased by the sum of t and 3
Answer:
8+(t+3)
Step-by-step explanation:
the sum is when you add two numbers together. so you would add t with 3 and out it in parentheses so you make sure that happens first. then you add it to 8 since 8 is being increased by the sum.
Is this negative positive or no correlation
Step-by-step explanation:
No correlation
Lines AB and CD are straight lines. Find x and y. Give reasons to justify your solutions.
9514 1404 393
Answer:
x = 14°
y = 5°
Step-by-step explanation:
Angle COL is complementary to both 25° (∠AOC) and 5y (∠LOM). Then it must be true that ...
5y = 25°
y = 5° . . . . . . divide by 5
__
Similarly, angle MOB is complementary to angle LOM, so ...
90° -25° = 3x +23°
42° = 3x . . . . . subtract 23° and simplify
14° = x . . . . . . divide by 3
The values of x and y are ...
x = 14°y = 5°3(2m-3)=5(m+1) What is the value of m
Answer:
14!
Step-by-step explanation:
3(2m-3)=5(m+1)
Step 1: 6m-9 = 5m + 5
Step 2 : Add 9 to -9 and 5
6m= 5m+14
Step 3: Subtract 5m from 6 and 14
Simplify!
m=14
an object travels at 20 m/s for 20 seconds. how far has it traveled?
Answer:
400 meters
Step-by-step explanation:
So it goes 20 meters every second. So you would multiply that by 20 seconds to get 400 meters.
hey If I originally had an A/101% in class and then did an assignment and got a 72% on it, what should my grade be now?
Answer:
well
Step-by-step explanation:
If it was a test grade it would be 60 or 70 percent but a daily grade would probaly be 20 or 30 percent hope this helps
Answer:
Step-by-step explanation:
You would have a Z on your grade obviously
the amount of sleep that elementary school children get per night follows a normal distribution with a mean of 9.5 hours and a standard deviation of 0.55 hours. is it unusual for an elementary student to get at least 12 hours of sleep?
Answer:
Yes, that is unusual as the problem is given.
Step-by-step explanation:
If the mean is 9.5 and the standard deviation is 0.55, then anything within the normal curve of 10.05 on the high end and 8.45 on the low end is normal. 12 is more than several standard deviations or an outlier if this makes sense.
So, it is unusual as the problem is stated, but if it's a weekend, 12 hours is normal. LOL
Good luck!
Based on the normal distribution parameters given, the probability of a student getting atleast 12 hours of sleep ls 0. Hence, it is abnormal.
Given the Parameters :
Mean = 9.5 Standard deviation = 0.55Using the Zscore formula, the probability of getting a atleast 12 hours of sleep can be expressed thus :
Zscore = (Score - Mean) / standard deviation
For X ≥ 12 :
Z = (12 - 9.5) / 0.55 = 4.545The probability using a normal distribution table :
P(Z ≥ 4.54) = 1 - P(Z ≤ 4.54)
P(Z ≤ 4.54) = 1 ( normal distribution table)
P(Z ≥ 4.54) = 1 - 1 = 0
Since, the probability is 0 ; hence, it is unlikely and therefore, abnormal.
Learn more :https://brainly.com/question/8165716
EASY PLEASE HELP PLEASE HELP 15 POINTS...PLEASE HELP
Answer:
positive one
Step-by-step explanation:
look at the position on the y axis
Answer:
(0, - 4 )
Step-by-step explanation:
The y- intercept is the value of the y- coordinate where the line crosses the y- axis.
The line crosses the y- axis at y = - 4 ← y- intercept or
(0, - 4 ) in coordinate form
m is the midpoint of segment AB. if M (-1,2) and A(-9,6) find the cooridinates of the other endpoints.
Answer:
B(7 , -2)
Step-by-step explanation:
A(-9 , 6)
Midpoint = (-1 , 2 )
[tex]Midpoint = (\frac{x_{1}+x_{2}}{2} , \frac{y_{1}+y_{2}}{2}) = (-1 , 2)\\[/tex]
[tex](\frac{-9+x_{2}}{2},\frac{6+y_{2}}{2}) = (-1 , 2)\\[/tex]
Compare the x co ordinates and y co ordinates,
[tex]\frac{-9+x_{2}}{2}= - 1[/tex] & [tex]\frac{6+y_{2}}{2}=2[/tex]
-9 + x₂ = -1*2 & 6 + y₂ = 2*2
-9 + x₂ = -2 & 6 + y₂ = 4
x₂ = -2 +9 & y₂ = 4 - 6
x₂ = 7 & y₂ = -2
B(7 , -2)
Will give brainliest if correct.
Answer:
X Intercept: (6,0)
Y Intercept: (0,2)
Step-by-step explanation:
Plug y = 0 into the equation and solve the resulting equation −3x = −18 for x. Plug x = 0 into the equation and solve the resulting equation −9y = −18 for y.
Libby takes a test that has a total possible score of 500. Each question is worth the same number of points. If she misses 4% of the questions, what is her score?
Answer:
Step-by-step explanation:
We can use the markdown formula to solve this question because it is the same type of problem.
= R x P
1. = 500 x 0.04
= 20
2. 500 - 20
= 480
I'd like to imform you about responsible internet usage. Social sites like this shouldn't be used for asking people to be their girlfriend. They should especialy not be used for inappropriate reasons either. I've seen very offensive pictures on this website. Thank you for listening! Have a great day!
Key: R = Percentage Rate P = Original Price
This graph displays a linear function. What is the rate
of change?
2
Rate of change =
cy
Answer:
5
Step-by-step explanation:
Got 100% on it
Answer:
its 5
Step-by-step explanation:
Find the measure of the third angle classify the triangle?
Answer:
obtuse and isosceles
Step-by-step explanation:
obtuse bc the third angle is 110 degrees if the two other angles are 35 degrees
if one angle is greater than 90 degrees than it is an obtuse triangle
it's isosceles bc isosceles triangles have two equal sides
15. The table below shows the number of rectangular tiles needed to
cover square shaped floors with certain side lengths. If the number of
tiles is proportional to the area of the floor, how many tiles would be
needed for a square shaped floor with a side length of 9 feet?
Answer:
the answer is b or c ;)
Step-by-step explanation:
Is this function linear or nonlinear?
Answer:yes
Step-by-step explanation:0 and 0 means that those numbers dont move that distance apart 1 that 1 X 1 it seems so it would equal 1 2 and 4 2 x 2 = 4 and 3 X 3 equals 9
Which of the following is a graph of y < x + 3?
It has to be between B, D please help its easy, but its confusing
Answer: it’s D :)
Step-by-step explanation: I was wondering if you could help me with my recent chemistry question I’ve posted it over and over and nobody answered it seriously they only say random stuff for points or search it up but it’s not the right answer.. please help me if not that’s fine.
how to find the points of a line that is perpendicular to a line you only know the slope of
Answer:
Write the new equation in slope-intercept form. Replace the old slope with the new slope. Replace the y-intercept's value with a variable (b).
Answer:
the perpendicular slope will be the opposite reciprocal of the original slope .
Step-by-step explanation:
example: lets use the points (5,3) ( 10,7)
The slope is 5/4
so we need a line of -4/5 (perpendicular) that passes through 5,3
Hope that helps
I need help pls !!!!!
Answer:
a=5
Step-by-step explanation:
right angel=90%
90-52=28
28-3=25
5(5)=25
hope this helps
Answer:
a=7
Step-by-step explanation:
90=52+5a+3
90=55+5a
35=5a
/5
a=7
Rahul has a farm he wishes to fence. The farm is the pentagon ABCDE, shown below. He knows that ABCD is a 140 m by 150 m rectangle, as shown below. He also knows that E is 50 m from the side AB and 30 m from the side BC. Determine the length of AE, the length of DE, and the perimeter of pentagon ABCDE.
Answer:
How do you except me to know
Step-by-step explanation:
Bruh I came here to find the Awnser not to actually work for it
Mr. Lopez picks up 2 pallets of dog food to deliver to the animal shelter. Each pallet contains 80 bags of dog food, and the dog food weighs 37 1/2 pounds per bag. What is the total weight, in tons, of the dog food Mr. Lopez delivers to the animal shelter?
Answer:
3 tons
Step-by-step explanation:
Sam and Bethan share £54 in the ratio 5:4
Work out how much each person gets.
Step-by-step explanation:
54=5:4=5+4=9/9
Sam=5/9 of 54
Bethany=4/9 of 54
Sam=30
Bethany=24
Find the values of x and y
Answer:
x = 90 y = 45
Step-by-step explanation:
Answer:
x = 90y= 43Step-by-step explanation:
it is an isocelous triangle thus angle CBA=47 By using ASP Y will be 43
Enter the sum of the numbers as the product of their gcf and other sum 27+72 what is the answer ?
Answer:
89
Step-by-step explanation: for the adtion it is 89 for the gcf is 3
The australain sheep dog is breed renowned for its intelligence and work ethic it is estimate that 45% of adult australian sheep dogs weigth 65pounds or more asample of 15 adult dogs is studied what is the probalilty that more than 12 of them weigh 65 lb
Answer:
The probability is 0.0011 to 4 d.p
Step-by-step explanation:
Let p = probability of the dog weighing more than 65 pounds or more = 45% = 45/100 = 0.45
q is weighing less than = 1-p = 1 - 0.45 = 0.55
So the probability of more than 12 weigh 65 lb
That means 13, 14 or 15 weigh more than 65 lb
We can use Bernoulli approximation of Binomial distribution to get this;
That would be ;
15 C 13 0.45^13 0.55^2 + 15 C 14 0.45^14 0.55 + 15 C 15 0.45^15 0.55^0
= 0.001107024147 Which is approximately 0.0011 to 4 decimal place
quickly plz 9th grade math
Answer:
The answer is -8.7
Step-by-step explanation:
-5(-2.1) + 4(-4.8)
10.5 + 4(-4.8)
10.5 + (-19.2) = -8.7
3 7 11 15 19
Work out the 8th term of the number sequence.
Write down an expression, in terms of n, for the nth term of the number
sequence.
Answer:
31 n
Step-by-step explanation:
I believe this is the answer because the number sequence that you have is 8, 7, 11, 15, and 19 correct?
okay so since you have those numbers take your first dumber and add it by 4 and you keep doing that till you get your 8th term and I put your eighth term above to make it easier for you .
if 3 apps cost 12$ how how much would 5 cost
Answer:
$20
Step-by-step explanation:
12 / 3 = 4
$4 per app
4 x 5 = 20
Lines l and k are parallel to each other. A=120 degrees. and C=80 degrees. What is the number of degrees in B??
100 points
Answer:
B = 160°
Step-by-step explanation:
This is how I solved it (I hope the explanation isn't too confusing):
Since L and K are parallel, I drew a straight line from A to B. By doing this, I'm making a triangle: ΔABC
Then I solved for the angles of the triangle. First, we are given that ∠C = 80° and ∠A = 120°. Although, when I drew the vertical line from A to B, it made a 90° (see attachment).
So what we basically did was break ∠A into two parts: an angle inside ΔABC and one outside. To find the interior angle, simply subtract 90° from 120° to get 30°.
There are 180° in a triangle, so add the two interior angles you know:
30° + 80° = 110°
Then subtract 110° from 180° to find the final interior angle which is:
180° - 110° = 70°.
To find the measure of angle B, you must add all of the parts together, so the 90° outside angle and the 70° interior angle:
90° + 70° = 160°
