Answer:
x=6.5
Step-by-step explanation:
Don't worry I just know
Answer:
X = 13/2
Step-by-step explanation:
7(x-2)=3(x+4)
Distribute
7x - 14 = 3x + 12
-3x from both sides
4x -14 = 12
Add 14
4x = 26
Dive by 4
X = 13/2
If u simplify 26/4
A box contains balls of four different colors. There are 5 red balls, 7 green balls, 2 blue balls and 6 yellow balls. If you pick a ball at random, the probability it will be yellow is
a. 1
b. 1/4
c. 6
d. 6/20
e. 6/14
Answer:
d. 6/20
Step-by-step explanation:
There are 5 red, 7 green, 2 blue, and 6 yellow, with a total of 20. Since there are 6 yellow, you have a probability of 6/20.
The writers for a TV show have determined that they need to add a new character. One demographic wants the new character to be a man, or someone who can do martial arts. Another demographic wants the new character to be a woman, or someone who is a medical doctor. The writers want to please both demographics. Therefore, the new character will be someone who can do martial arts or is a medical doctor.
Which rule of inference was used here?
A. Conjunction
B. Resolution
C. Modus Ponens
D. Disjunctive Syllogism
E. Hypothetical Syllogism
F. Addition
G. Modus Tollens
H. Simplification
Answer: Resolution
Step-by-step explanation:
The rule of inference that was used here is Resolution. We should note that the resolution principle is used to know whether an argument is valid or not and hence make conclusion.
Resolution typically complements the sentences given such that the new clause has every information given and satisfies everyone.
We can see that from the question, one demographic wants the new character to be a man, or someone who can do martial arts while the other demographic wants a woman,or a medical doctor. Eventually, the writers want to please both demographics and said that the new character will be a martial artsmist or a medical doctor.
Consider the figure below.
part a- Determine sin(g)
part b- Determine tan(z)
part c- Determine cos(z)
part d- Determine sin(M)
Answer:
A) 77/427
B) 77/420
C) 420/427
Step-by-step explanation:
Sin= Opposite/Hypotenuse
Opposite always make a 90° with the Adjacent. adjacent and the Hypotenuse are across each other.
Cos= Adjacent/Hypotenuse
Tan= Opposite/Adjacent
Answer:
part a: 420/427
part b: 420/77
part c: 77/427
32 POINTS! *URGENT*
When Pizza Paradise first opened their business in 2010, they decided on a price for their large cheese pizza. After their first full year in business, they decided they would increase the price at a constant rate each year for four years. The new price in 2011, after their first increase, was $7.75. The price in 2014 was $10.00.
What is the slope!
Answer:
The price in 2010 was $7. every year the price went up $0.75 slope should be 0.75x
Step-by-step explanation:
Answer:
lol i had the same question
Step-by-step explanation:
k I need help again the last part says triangles
HELP ASAP! Which statement below references interactions between the geosphere, the hydrosphere, and the biosphere?
A. A man goes surfing at the beach.
B. A car accelerates from rest to 60 kilometers per hour.
C. The excess rain this past week caused the river to flood.
D. The volcano began to erupt and emit dark clouds of ash into the sky.
Answer: the volcano began to erupt and emit dark clouds of ash into the sky
Step-by-step explanation:
PLEASE ANSWER THIS, QUICK
Answer:
(x, y ) = ( - 3 , 14 )
Step-by-step explanation:
I hope this helps you. Best of luck.
SOMEONE HELP PLEASE!!!
Other than itself, which angle is congruent to
(PLEASE HELP ILL REWARD)
Answer:
The answer is <GBH
Step-by-step explanation:
ITS because its relation is vertically opposite angle
9x^2+6x factorise fully
Answer:
THX FOR THE POINT NOOB
Step-by-step explanation:
Using a computer or calculator that provides proportions falling below a specified z-score, determine the approximate proportion for each of the following situations. In each case, assume the values are approximately bell-shaped. (Round your proportions to four decimal places.) A button hyperlink to the SALT program that reads: Use SALT. (a) The proportion of SAT scores falling below 420 for a group with a mean of 500 and a standard deviation of 100. -0.8 Correct: Your answer is correct. (z-score) (approximate proportion)
Answer: uhhhh what
Step-by-step explanation:
Which equation describes the pattern of the data in the table?
Х
3
4 5 6 7
12 16 20 24 28
у
A y = 4x
B y = 4x+12
1
y = -X
1 x +12
D
4
Answer:
Option A. y = 4x
Step-by-step explanation:
From the question given above, the following data were obtained:
X >> Y
3 >> 12
4 >> 16
5 >> 20
6 >> 24
7 >> 28
Next, we shall use each of the options to obtain the first two value of y to which will correspond to the table above. This is illustrated below:
For Option A:
1. y = 4x
x = 3
y = 4 × 3
y = 12
2. y = 4x
x = 4
y = 4 × 4
y = 16
For Option B:
1. y = 4x + 12
x = 3
y = 4(3) + 12
y = 12 + 12
y = 24
2. y = 4x + 12
x = 4
y = 4(4) + 12
y = 16 + 12
y = 28
For Option C:
1. y = ¼ x
x = 3
y = ¼ × 3
y = ¾
2. y = ¼ x
x = 4
y = ¼ × 4
y = 1
For Option D:
1. y = ¼x + 12
x = 3
y = ¼(3) + 12
y = ¾ + 12
y = 51/4
2. y = ¼x + 12
x = 4
y = ¼(4) + 12
y = 1 + 12
y = 13
From the calculations made above, only option A ie. y = 4x correspond to the data given in the table above.
Porphyrin is a pigment in blood protoplasm and other body fluids that is significant in body energy and storage. Let x be a random variable that represents the number of milligrams of porphyrin per deciliter of blood. In healthy circles, x is approximately normally distributed with mean µ = 43 and standard deviation σ = 15. Find the following probabilities. (Round your answers to four decimal places.)
a. x is less than 60
b. x is greater than 16
c. x is between 16 and 60
d. x is more than 60
Answer:
a) 0.8708 = 87.08% probability that x is less than 60
b) 0.9641 = 96.41% probability that x is greater than 16.
c) 0.8349 = 83.49% probability that x is between 16 and 60
d) 0.1292 = 12.92% probability that x is more than 60.
Step-by-step explanation:
When the distribution is normal, we use the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this question, we have that:
[tex]\mu = 43, \sigma = 15[/tex]
a. x is less than 60
This is the pvalue of Z when X = 60. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{60 - 43}{15}[/tex]
[tex]Z = 1.13[/tex]
[tex]Z = 1.13[/tex] has a pvalue of 0.8708
0.8708 = 87.08% probability that x is less than 60
b. x is greater than 16
This is 1 subtracted by the pvalue of Z when X = 16. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{16 - 43}{15}[/tex]
[tex]Z = -1.8[/tex]
[tex]Z = -1.8[/tex] has a pvalue of 0.0359
1 - 0.0359 = 0.9641
0.9641 = 96.41% probability that x is greater than 16.
c. x is between 16 and 60
This is the pvalue of Z when X = 60 subtracted by the pvalue of Z when X = 16. We found those in a and b, si:
0.8708 - 0.0359 = 0.8349
0.8349 = 83.49% probability that x is between 16 and 60
d. x is more than 60
This is 1 subtracted by the pvalue of Z when X = 60.
So
1 - 0.8708 = 0.1292
0.1292 = 12.92% probability that x is more than 60.
[tex]y = 2 {}^{x} and \: y \: = 2 - {}^{x} [/tex]
graph each group of function in one plane describe the graph.
Please help me pleaseee :((
Step-by-step explanation:
[tex]y = {2}^{x} [/tex]
This is a basic exponential function.
[tex]y = {2}^{ - x} same \: as \: y = 0.5 {}^{x} [/tex]
The (-x) exponent makes a reflection in the y-axis.
-3 radical 2 times radical 3
Answer:
-6
Step-by-step explanation:
[tex]-3\sqrt{2}*\sqrt{2} = -3*2 = -6\\[/tex]
Need help (8th grade math)
Slope= rise/run
=y2-y1/x2-x1
3-1/8-7
2/1
Slope=2
Answer:
2
Step-by-step explanation:
- use the equation:
m=y^2-y^1/x^2-x^1
- pick any two points:
m= -1+3/6-5
- solve:
m= 2/1
FINAL ANSWER:
2
The graph of a proportional relationship contains the point (4, 20). What is the constant of proportionality?
Enter your answer in the box.
9514 1404 393
Answer:
5
Step-by-step explanation:
A proportional relationship has the equation ...
y = kx . . . . . . where k is the constant of proportionality
Solving this equation for k, we get ...
k = y/x
Filling in the given values (x, y) = (4, 20) gives ...
k = 20/4
k = 5
The constant of proportionality is 5.
Answer:
The answer is 1/5 = 0.2
Step-by-step explanation:
Twice the number v + 1
Answer:
Answer:
2(c+1)
=
2c+2
Step-by-step explanation:
The degree of the polynomial function f(x) is 3.
The roots of the equation f(x) = 0 are - 1,0, and 4
Which graph could be the graph of f(x)?
Answer: Top right corner
This graph shows a curve going through x = -1, x = 0 and x = 4 on the x axis. These are the three roots or x intercepts.
The graph in the bottom right has a root of x = -4, but that's not one of the listed roots in the instructions. So we rule this graph out.
The other two graphs only have two roots, and not three, so we rule them out as well.
Step-by-step explanation:
If the degree of a polynomial function is an odd number, the ends of the graph will go in opposite directions. (one going up and one going down)
The graph must pass the x-axis at the points -1, 0, 4.
Only the top-right graph satisfies our conditions.
aight can someone help me lol
I need help! Thanks!
You buy cheese in 1 pound bags. The recipe for burritos requires 1.7 ounces of cheese per serving. How many servings can you make?
Help plz will do BRAINLIEST!!!!!!
Answer:
125 56 − x 7
Step-by-step explanation:
1/2-3/8/1/3+4/7(5- 1/4 x)
Given the ABC, where A(4,3), B(2,-1), and C(-2,1). Use the slope and distance formula to classify the triangle.
It might be 2 not 100 percent sure
Answer:
isosceles (based on sides) and right triangle (based on angles)
Step-by-step explanation:
This is an isosceles triangle because two of the sides are the same distance (it is in cm.). This is also a right triangle because at point B the two lines are perpendicular (using their slopes).
kevin got 100.000+6+100+4×10+3×1 points playing the video game.Ryan got seven hundred forty thousand. sixty four pounts playing the same game Who got the most points
Answer:
ryan
Step-by-step explanation:
List the angles from least to greatest! URGENT
(BETTER IMAGE)
Answer: Y<W<Z? Im not exactly sure but it looks right to me. Correct me if im wrong though.
Step-by-step explanation:
Answer:
W<Y<Z
Step-by-step explanation:
the side WZ is longer than side ZY, so the angle W is smaller.
The elevation at ground level is 0 feet. An elevator starts 90 feet below ground level. After traveling for 15 seconds, the elevator is 20 feet below ground level. Which statement describes
the elevator's rate of change in elevation during this 15-second interval?
Answer:
elevator travel 4.5 feet per second
Answer: A
Step-by-step explanation:
the answer is A
A bag contains 20 red marbles, 8 white marbles, and 2 gray marbles. You randomly pick out a marble, record its color, and put it back in the bag. You repeat this process 120 times. How many white or gray marbles do you expect to get?
please answer soon!!
Answer:
10
Step-by-step explanation:
Middle School A and Middle School B both planned trips to Washington D.C. using the
same rental company. Middle School A rented 6 vans and 6 buses for its 186 students.
Middle School B rented 2 vans and 4 buses to transport its 110 students. How many
students do the rental vans seat? How many students do the rental buses seat?
Answer:
each van can transport 15 students
Step-by-step explanation:
186 divied by 2 and you get 93 then you divied that by 6 and you get 15.5 you cant have .5 sutdents on a van so you round down and get 15 students.
THIS IS MY 6TH TIME POSTING THIS HELP
A scale drawing of a rectangular basketball court measures 7 inches long and 4 inches wide. If the scale used for the drawing is 2.5 inches equals 5 yards, what is the actual length of the park?
Answer:
14 yards
Step-by-step explanation:
length of basketball court=
7 inches
(times by 2.8) 2.5 inches-5 yards( times by 2.8)
7 inches=14
i hope i helped:)