Answer:
0.3897
Step-by-step explanation: i g o o g l e it
21. Which equation can you use to find the value of x? (y + 2.3) cm K K. T 7 cm ( (2.5x)" H A. O 2.5x = 180 B.O 2.5x = 90 C.O 2.5x = 60 D. O 2.3x = 60
Answer:
2.5x = 180
Step-by-step explanation:
106 ° + X° = 180 °
Solving the above
X° = 180 ° - 106°
X° = 74°
Therefore the value of X° is 2.5°.
B is the correct option
One hundred sixty people who suffer from painful diabetic neuropathy have volunteered to participate in a study. Eighty are selected at random and are given the drug gabapentin, which, although originally intended to prevent epileptic seizures, has properties that may make it useful to alleviate neuropathy. The remaining participants are given a placebo. A neurologist evaluates the symptoms of all volunteers after two months to determine if there has been substantial improvement in the severity of the symptoms.
Does the use of volunteers make this study invalid?
a. yes, because of volunteer bias no, because blocking was used.
b. yes, because there is no way to determine the effect of gabapentin on people that do not have symptoms of neuropathy.
c. no, because the subjects are randomly assigned to treatment groups.
Answer:
C. No, because the subjects are randomly assigned to treatment groups
Step-by-step explanation:
We are told that 80 people are selected at random and are given the drug gabapentin.
Also that the remaining people are given the placebo.
This means that they are randomly assigned treatment groups and so it is a completely randomized block design and as such the use of volunteers doesn't make it invalid.
I need help with this trigonometry question.
“Solve the right triangle.
“Round your answers to the nearest tenth.”
The grade seven students are showing a movie in their school auditorium to raise money for the end of year field trip. Goal is to raise at least $500. Each ticket sales for $16. So far they have sold 20 tickets. Which inequality graph correctly shows how many more tickets they need to sell to reach their goal.
Answer:
The answer is A because it needs to be a filled dot to represent the information correctly. 16 x 20 is 320 so they need 180 more to have at least 500 dollars which is 11.25 tickets but you cant have a fourth of a ticket so you need atleast 12 tickets sold.
What quadrant is (0,-7) found in?
your answer is 1st quadrant!
-----------------------------------------
Have a good day <3
Find the indicated side of the
right triangle.
45
y
9
45°
х
y = [?]
Answer:
y = 9√2
Step-by-step explanation:
By applying Pythagoras theorem in the given right triangle,
(Hypotenuse)² = (leg 1)² + (leg 2)²
y² = 9² + x²
By the property of isosceles triangle,
Two angles of the right triangle are equal in measure, opposite sides of these equal angles will be equal in measure.
Therefore, x = 9
y² = 9² + 9²
y² = 81 + 81
y² = 162
y = √162
y = 9√2
Write the equation in slope-intercept form m=-5 b = 7
Answer:
y = -5x + 7
Step-by-step explanation:
y = mx + b
where, m = -5 and b = 7
y = (-5)x + 7
y = -5x + 7
Thus, Option b is correct
-TheUnknownScientist
Corresponding Angles are congruent.
Which angle corresponds with <7?
Answer: Angle 1 corresponds with Angle 7.
You are working as an apprentice for the bksb Newcastle Arena.
An indoor sport exhibition is coming to the arena. Your supervisor has asked you to help set up a handball pitch and seating area as shown in the plan view below..
Yo anyone know the answer
Answer:
12350
Step-by-step explanation:
I had the same question on a math test
1. Kathy is building a bed for her dollhouse. She used her real bed as a guide for how to
create the dollhouse bed. Her bed is 36 inches wide and 60 inches long. If she wants
to scale this down by 1/10, what would be the dimensions of the dollhouse bed?
Explain how you got your answer.
*Use the term SCALE FACTOR in your explanation.
PLS ANSWER QUICKLY !!!
WHATS X AND Y??
Y = 3x+ 4 and 2x – 4y = -6
Answer:
X=-1, y=1
Step-by-step explanation:
Substitute value of y in first equation (3x+4) with y of second equation.
2x-4(3x+4)=-6
2x-12x-16=-6
-10x=10x=-1
solve for y but putting -1 for x value in either equation
y=3(-1)+4
y=-3+4
y=1
6
6
4.5
What type of triangle is the figure above?
acute
isosceles
scalene
✓
obtuse
Answer:
Isoceles
Step-by-step explanation:
Isoceles triangles have 2 sides that are the same length.
Which of the following shows the extraneous solution to the logarithmic equation log7 (3x ^ 3 + 7) - 100 + (x) = 27
Answer: X=-4
Step-by-step explanation:
Should be B on Edge.
Answer: X = -4
Step-by-step explanation:
Please help! This is due today!
te amo vato de arriba, ojalá y algún día seas mi novio y me mandes la visa y unos cuantos dólares pa'l frí fayer y comprarme más cosas de marca :"3
en fin... nunca me vas a hacer caso :")
Find the probability of drawing a 10 from a standard deck
of 52 cards,
Answer:
4/52 or 1/13 (simplified)
Step-by-step explanation:
There are 4 "10's" in a pack.
This means you have the chance to pick 4 10's.
So out of 52 cards, you can get 4.
4/52 -> Which can be simplified to 1/13.
This is the probability of getting a 10 (once) in a standard deck of cards.
The probability of drawing a 10 from a standard deck of 52 cards is 1/13.
Number of 10's in a standard deck of 52 cards =4
Total cards =52
What is probability?Probability is the measurement of the possibilities of events.
P(event) =Favorable outcomes/ Total possible outcomes
Here, Favorable outcomes =4
Total possible outcomes =52
P(10) =4/52
P(10) =1/13
So, the probability of drawing a 10 from a standard deck of 52 cards =1/13
Thus, the probability of drawing a 10 from a standard deck of 52 cards is 1/13
To get more about probability visit:
https://brainly.com/question/24756209
Write an equation of the line that passes through the point (-2, 5) and is parallel to the line 2x − 3y = 12.
Answer:
y = (2/3)x + 19/3
Let me know if there are any parts of the process you do not understand.
Step-by-step explanation:
First you need to know what slope is, if you do not let me know and I can explain it in depth.
Now, you can determine if a line is parallel or perpendicular by its slope. parallel has the same slope and perpendicular has the negative reciporical, which basically means negative 1 divided by the slope.
So if you slope was 3 perpendicular would be -1/3. if the slope is a fraction you can just flip the fraction and make it negative. so if the slope is -2/3 a perpendicular slope would be 3/2, making a negative number negative makes it positive.
Now you start with 2x - 3y = 12. To find the slope I like putting it in slope intercept form. basically somethign that looks liek y = mx + b. to do that just use algebra on what you have to get y by itself. here is how I would do that.
2x - 3y = 12 first subtract 2x from both sides
-3y = 12 - 2x Now divide both sides by -3
y = 12/-3 - (2x)/3 Now simplify
y = -4 + 2/3 x Now rarrange to make it look like I said, basically you want the x first.
y = 2/3 x - 4
There, so the slope is 2/3. A parallel line will have the same slope.
To make the equation of a line you want one point and the slope. Well we have that, the point is (-2,5) and the slope is 2/3.
To find a line you set up the point slope form. that is y - y1 = m(x - x1) where m is the slope and x1 and y1 are the coordinates of the point you need. I will plug all that in.
y - y1 = m(x - x1)
y - 5 = (2/3)(x - (-2)) Now solve
y - 5 = (2/3)x + 4/3
y = (2/3)x + 19/3
So that is the equation of a line parallel to 2x - 3y = 12 that passes through (-2, 5)
Solve the quadratic by taking square roots. Write your answer with no spaces as x=a,-a where a and -a are the values you found when solving.
3x² - 7 = 140
Answer:
x=7,−7
Step-by-step explanation:
In order to find the value of x in this quadratic equation we first need to make the equation equal 0 by getting rid of the 140. We do this by subtracting 140 on each side.
3x² - 7 = 140
3x² - 147 = 0
Now we solve as a regular quadratic formula
x= [tex]x = \frac{-(0) +- \sqrt{0^{2} - 4(3)(-147) } }{2(3)}[/tex]
[tex]x = \frac{0 +- \sqrt{1764} }{6}[/tex]
x=7,−7
I need help PLEASE!!!
9514 1404 393
Answer:
y = -4/3x +23/2
Step-by-step explanation:
The tangent of interest is perpendicular to the radius at the given point on the circle. To find the perpendicular, it helps to know the slope of the radius segment. To find that, we need the center of the circle.
The center of the circle can be found by completing the square for each variable.
(x^2 -2x) +(y^2 +4y) = 20
(x^2 -2x +1) +(y^2 +4y +4) = 20 +1 +4
(x -1)^2 +(y +2)^2 = 25
Comparing this equation to the standard form equation for a circle, we can find the center.
(x -h)^2 +(y -k)^2 = r^2 . . . . . . . circle of radius r centered at (h, k)
The center of circle P is (1, -2).
__
The slope m' of the line segment between (1, -2) and (5, 1) is given by ...
m' = (y2 -y1)/(x2 -x1)
m' = (1 -(-2))/(5 -1) = 3/4
The slope m of the perpendicular line is the opposite reciprocal of this, so is ...
m = -1/m' = -1/(3/4) = -4/3
The y-intercept of the desired line can be found from ...
b = y -mx . . . . . . . for m=-4/3 and (x, y) = (5, 1)
b = 1 -(-4/3)(5) = 23/3
Then the equation of tangent line AB is ...
y = mx +b
y = -4/3x +23/3
ILL GIVE THE BRAINLIEST pls help me with this question EVERYTHING IS IN THE PICTURE PLS HELP DUE TODAY IF YOU PUT A WRONG ANSWER ILL REPORT YOU FASTER THAN ASSIGMENT IS DUE
Answer:
60 yd
Step-by-step explanation:
Volume is length x width x height. Therefore in this case, we do 4x3x5 which turns out to be 60. Also don't forget to add yd after your answer because this is measured in yards.
Determine whether
25m/
5
is equivalent to each of the following expressions.
Equivalent
Not equivalent
25m-1
252m-1
52m-1
Answer:
(a) and (b) are not equivalent
(c) is equivalent
Step-by-step explanation:
Given
[tex]\frac{25^m}{5}[/tex]
See attachment for complete question
Required
Determine an equivalent or nonequivalent expression
[tex](a)\ 25^{m-1[/tex]
We have:
[tex]25^{m-1[/tex]
Apply law of indices
[tex]25^{m-1} = \frac{25^m}{25}[/tex]
This is not equivalent to [tex]\frac{25^m}{5}[/tex]
[tex](b)\ 25^{2m - 1}[/tex]
We have:
[tex]25^{2m - 1}[/tex]
Apply law of indices
[tex]25^{2m - 1} = \frac{25^{2m}}{25}[/tex]
This is not equivalent to [tex]\frac{25^m}{5}[/tex]
[tex](c)\ 5^{2m-1}[/tex]
We have:
[tex]5^{2m-1}[/tex]
Apply law of indices
[tex]5^{2m-1} = \frac{5^{2m}}{5^1}[/tex]
[tex]5^{2m-1} = \frac{5^{2m}}{5}[/tex]
Evaluate the numerator
[tex]5^{2m-1} = \frac{25m}{5}[/tex]
This is an equivalent expression
NEED HELP ASAP ANSWER PLEASEEE!!!
1. Minh asks Marco to duplicate a graphic she has on her restaurant’s ceiling. The ceiling is covered with 1 ft by 1 ft tiles. A chandelier hangs in the center of the ceiling. The graphic Minh painted on the ceiling is a pentagon. Assuming that the chandelier is located at , the pentagon’s coordinates are . Minh wants to have the same graphic design duplicated in another location on the ceiling. She is considering four ideas.
(a) reflecting pentagon over the y-axis
a. Graph new pentagon when pentagon is reflected over the y-axis. What are the coordinates of pentagon ?
b. Write a math rule or explanation using words that describe a reflection of over the y-axis.
c. Using this rule, where would be located if reflected over the y-axis?
(b) rotating pentagon 90° clockwise about the origin
a. Graph the new pentagon when pentagon is rotated 90° clockwise about the origin. What are the coordinates of pentagon ?
b. Write a math rule or explanation using words that describe a rotation of 90° clockwise about the origin.
c. Using this rule, where would be located if rotated 90° clockwise about the origin?
(c) translating pentagon to the right 11 units and up 4 units
a. Graph the new pentagon PQRST when pentagon is translated 11 units to the right and 4 units up. What are the coordinates of PQRST?
b. Write a math rule or explanation using words that describe a translation of 11 units to the right and 4 units up.
c. Using this rule, where would be located if translated 11 units to the right and 4 units up?
(d) translating pentagon 3 units up and then reflecting it over the x-axis
a. Graph the new pentagon when pentagon is translated 3 units up and reflected over the x-axis. What are the coordinates of pentagon ?
b. Write a math rule or explanation using words that describe a translation of 3 units up and reflection over the x-axis.
c. Using this rule, where would be located if translated 3 units up and reflected over the x-axis?
2. The restaurant floor, like the ceiling, is made of tiles that measure 1 ft by 1 ft. On the floor, Marco has made this graphic.
For each pair of graphics listed below, decide whether the pair is best described as similar, congruent, or neither. If the pair is similar or congruent, describe the sequence of transformations that proves this and write the congruency or similarity statements for each pair of corresponding sides. If the graphics are neither similar nor congruent, explain how you know this.
(a) polygon and polygon
(b) polygon IJK and polygon LMN
(c) polygon and polygon
(d) polygon and polygon
Answer:
3. Minh wants to add another graphic on the ceiling. She has a pentagon located at . To make the other pentagon, Minh wants to reflect pentagon over the y-axis. Next, she wants to dilate it by a factor of 2, using the origin as the center of the dilation. Finally, she wants to translate it 15 units down and 2 units right to get the location of the final graphic. What is the location of the new graphic? Show your work.
Answer:
Answer D Is` Correct
Step-by-step explanation: translating pentagon 3 units up and then reflecting it over the x-axis
a. Graph the new pentagon when pentagon is translated 3 units up and reflected over the x-axis. What are the coordinates of pentagon ?
b. Write a math rule or explanation using words that describe a translation of 3 units up and reflection over the x-axis.
c. Using this rule, where would be located if translated 3 units up and reflected over the x-axis?
Answer:
,
Step-by-step explanation:
answer d is correct
Hope it helps u
FOLLOW MY ACCOUNT PLS PLS
Classify the following triangle as acute, obtuse, or right.
Answer:
None, this is an isosceles triangle.
express 35 as a fraction of 70,give answer in its simplest form
can someone help with my question ill give you brainist or whatever lol
Answer: 95
Step-by-step explanation:
The easiest way to solve this problem is to solve for each of the triangles:
(formula: B*H/2) 10*3/2 + 10*16/2
15+80
95
---------{NOTICE}----------
If you have any additional questions the best way to reach me is via discord
user: michaelsaltandpepper#9640
х
Solve for x.
18
13
Answer:
This doesnt make sense?
Step-by-step explanation:
What is the area of the composite figure?
Answer:
132ft squared
Step-by-step explanation:
Divide the figure into one rectangle and on triangle. Area of rectangle: 8x12=96
Area of triangle: 9x8/2=36
Add: 96+36=132
Consider the polynomial
Answer:
C
Step-by-step explanation:
1. The third term has an exponent of 1.
2. A constant is the number with no variable.
I hope this helps ^-^
is 0.000061 greater than 610,000
Answer:
no.
Step-by-step explanation:
0.000061 is a decimal, and the number to the left of the decimal would be a whole number, which is 0. this means the number is less than one.. while 610,000 is a number jn the thousands, making it greater.
Answer:
No
Step-by-step explanation: 610,000 is greater than 0.000061 because 0.000061 is a decimal in the 100,000ths place.
Hope this can help.
Find the 6th term:
1, 4, 16, 64
Answer:
1024
Step-by-step explanation:
1 x 4 = 4 x 4 = 16 x 4 = 64 x 4 = 256 x 4 = 1024
Feel free to mark it as brainliest :D
Answer:
1024
Step-by-step explanation:
you multiply by 4 to get the next number in the sequence.
64*4 = 256
256*4 = 1024