Answer:
-2
Step-by-step explanation:
6x+3y=21
Bring the equation to y=mx+c form
3y=21-6x
y=-2x+7
When comparing, m=-2
Slope m=-2
Convert to Standard Form
13-6x-y=0
Suppose that 90% of all dialysis patients will survive for at least 5 years. In a simple random sample of 100 new dialysis patients, what is the probability that the proportion surviving for at least five years will exceed 80%, rounded to 5 decimal places
Answer:
The probability [tex]P(\^ p > 0.80) = 0.99957[/tex]
Step-by-step explanation:
From the question we are told that
The population proportion is p = 0.90
The sample size is n = 30
Generally mean of the sampling distribution is [tex]\mu_{\= x } = p = 0.90[/tex]
Generally the standard deviation is mathematically represented as
[tex]\sigma = \sqrt{\frac{p( -p )}{n} }[/tex]
=> [tex]\sigma = \sqrt{\frac{0.90( 1 -0.90 )}{100} }[/tex]
=> [tex]\sigma = 0.03[/tex]
Generally the he probability that the proportion surviving for at least five years will exceed 80%, rounded to 5 decimal places is mathematically represented as
[tex]P(\^ p > 0.80) = P(\frac{ \^ p - p }{ \sigma } > \frac{0.80 - 0.90}{0.03} )[/tex]
Generally [tex]\frac{\^p - p}{\sigma} = Z(The standardized \ value \ of \^ p)[/tex]
So
[tex]P(\^ p > 0.80) = P(Z > -3.33 )[/tex]
From the z-table [tex]P(Z > -3.33 ) = 0.99957[/tex]
So
[tex]P(\^ p > 0.80) = 0.99957[/tex]
x/-8 = -3
help!!! needed urgently
If x/ -8 = -3,
Just multiply by -8 on both sides.
x = 24
Hope this helps!
If x/ -8 = -3,
Just multiply by -8 on both sides.
x = 24
Hope this helps!
What is the only real number which, when divided by itself, is 2020
times itself?
Answer:
1/2020
Step-by-step explanation:
We can set up an equation, where x is the number that, when divided by itself, is 2020 times itself:
x/x = 2020*x
The left-hand side reduces to 1:
1 = 2020*x
Now, you can divide both sides by 2020:
x = 1/2020
To check, we can divide 1/2020 by itself:
[tex]\frac{\frac{1}{2020}} {\frac{1}{2020}} = \frac{1}{2020}\cdot \frac{2020}{1} = \frac{2020}{2020} = 1[/tex]
1 is indeed 2020 times 1/2020.
We have that
x=4.95*10^{-4}
From the question we are told
What is the only real number which, when divided by itself, is 2020
times itself
Generally the equation for the statement is mathematically given as
[tex]\frac{x}{x}=2020*x\\\\1=2020*x\\\\x=\frac{1}{2020}\\\\x=4.95*10^{-4}[/tex]
Hence
the only real number which, when divided by itself, is 2020
times itself is
[tex]x=4.95*10^{-4}[/tex]
For more information on this visit
https://brainly.com/question/23366835
The measure of one angle of a linear pair is 80°. If the
measure of the other angle is 4x°, what is x?
Mai biked 634 miles today, and Noah biked 472 miles.
How many times the length of Noah's bike ride was
Mai's bike ride?
Answer:
1.34 times the length of Noah's bike ride
Step-by-step explanation:
634/472
1.34322033898
1.34
1.34 times the length of Noah's bike ride
Tehara has read 115 pages of a 305 page book she reads 10 pages each day how many days will it take to finish
Answer:
19 days
Step-by-step explanation:
305 - 115 = 190
190 ÷ 10 = 19
4r – 4s+ 4 = - 4
4r + s - 2t=5
- 3r - 3s - 41= -16
Help please
Answer:
r=-2.00000
s=2.00000
Can someone please answer my math question:(
Answer:
were is the pic I cant answer lik
An artery of radius 3 mm sends blood to three smaller arteries that are all the same size. Each of the smaller arter
much blood to flow as the larger artery does. What is the radius, in mm, of one of the smaller arteries?
A)
3
B)
3T1
C)
V3
D)
2/3
9514 1404 393
Answer:
C) √3
Step-by-step explanation:
Treating this as a geometry problem, not a fluid dynamics problem, we assume the area of the smaller vessels must total that of the larger one. Then the ratio of areas of the smaller vessels to the larger one is 1/3. The ratio of radii is the square root of that: 1/√3.
Then the radius of the smaller arteries must be ...
(3 mm)(1/√3) = √3 mm
The denominator of a fraction is 15. The fraction is equivalent to 3/5. What is the fraction
Answer:
9/15
Step-by-step explanation:
because you would divide 15 by 5 and get 3 and then you would multiply the 3 by 3 and get 9.
Answer:
9/15
Step-by-step explanation:
you write the fraction 3/5 then you divide 5 by 15 you'll get 3 then 3×3 it will be 9 which is the denominator
Alright anyone that can help me?
The answer is D, [tex]\sqrt2[/tex]
If you found this answer helpful, I strongly recommend marking me as Brainliest!
standard form help me
Can you please answer ASAP I need the answer
Answer:
I think x=8
Step-by-step explanation:
5(x+7)+15=90
90 because it's a 90 degree angle
5x+35+15=90
5x+50=90
5x=40
x=8
7. PLS I NEED AN ANSWER ASAP
Part A: 3x + 15 = 5x - 25
Part B: x = 20
help me pleaseeeeeeeeeeeeeee
Answer:
Neither
Step-by-step explanation:
Hope this helps!
Answer:
meme
how bout that
Solve for f.
4f = -2 + 5f
Answer:
f=2
Step-by-step explanation:
First, you move the variables to the left side of the equation and change its sign.
After doing so, you have 4f -5f =2.
Now, combine like terms. 4f-5f = -f, or -1f. Either way is fine.
Your equation looks like this now: -f = -2
Now remove the negative symbols due to their being one on both side.
f=2
Mark brainliest if possible please! Have a nice day.
TurboTax will have one 45-second commercial. How much money will they spend?
PLEASE HELPPPP!!!! WILL GIVE BRAINLIEST ASAP!!!
4+8
THANK YOU <3
Answer:12
Step-by-step explanation:
count you fingers. Easy XD
Answer:
4+8=12
Step-by-step explanation:
If you use your fingers and count
Mrs. Sing invest $12,876 for her business at an annual interest rate of 7 percent for 3 years. Which number will mrs. sing substitute for r in the simple interest formula?
Answer:
The number that she will substitute is 7
Step-by-step explanation:
Mathematically, simple interest can be calculated using the formula ;
S.I = PRT/100
where P is the principal which is the amount invested = $12,876
T is the time which is 3 years
and R is the rate which is 7%
Answer:
Answer:
The number that she will substitute is 7
Step-by-step explanation:
i just took he test
pls help me find the value
Answer:
The answer is 0.
Explanation:
2/3 x 0 = 0
0 x -3 = 0
I hope it helps you...
Answer:
1Step-by-step explanation:
[(3/2)⁰]⁻³
apply the exponent rule: (aᵇ)ˣ = aᵇˣ, a≥0
= (3/2)⁰ ⁽⁻³⁾
note that 0 * (-3) = 0 so,
=(3/2)⁰
apply exponent rule: a⁰ = 1, a≠0
= 1
Which of the following is a solution to the Equation 2x^2+4y=3=3x^2
A)-1
B)0
C)3
D)6
Answer:
3
Step-by-step explanation:
I think 3 is the answer
HELPPPPP
Area between two points
You might need: Calculator, Z table
A set of mathematics exam scores are normally distributed with a mean of 80.2 points and a standard deviation
of 4 points.
What proportion of exam scores are bęween 82 and 85.6 points?
You may round your answer to four decimal places,
Show Calculator
Stuck? Watch a video or use a hint.
Report a problem
Answer:
0.2379
Step-by-step explanation:
Answer:
0.2379
Step-by-step explanation:
Khan
Which point on the coordinate plane is closest to ______ ?
Answer:
its point D hope this helps :)
Solve in Multi Step (Show work)
-2x + 5 = -6
Answer:
5.5
Step-by-step explanation:
-2x + 5 = -6
subtract -5 from -6 then divide by -2
i hope i explained it well.
Answer: 5.5 is your answer.
Step-by-step explanation:
1) -2x + 5 -5 = -6 -5 <------Subtract 5 from 5 and 5 from -6.
2) -2/-2 x = -11/-2 <---------------Now divide -2 by -2 and divide -2 by -11.
3) x = 5.5 <-------------And this is your answer.
Hope this helped! Have a great day! :).
WILL GIVE BRANLIEST! FINAL QUESTION
What is the radical form of x^-1/2?
A)√x
B)√x /x
C) x
Answer:A
Step-by-step explanation: In exponents,
a
1
m
=
m
√
a
Hence
x
1
2
=
2
√
x
Given m||n, find the value of x.
+
m
(2x+6)º(x+9)
Someone please help?
Answer:
x=55
Step-by-step explanation:
(2x+6)+(x+9)=3x+15
3x+15=180
3x=165
x=55
Triangle CDA is the image of triangle ABC after a 180° rotation around the midpoint of segment AC. Triangle ECB is the image of triangle ABC after a 180° rotation around the midpoint of segment BC.
Answer:ABCD and ABEC are parallelograms because they both have a pair of parallel lines.
DCE AND CEB are congruent angels
number 3 pls!!! I need help with figuring it out
Answer:
C. Angle MNP
Step-by-step explanation:
Check the corresponding equal sides with congruent angles
Answer: Third choice. [tex]\angle MNP[/tex]
=======================================================
Explanation:
We want to find something congruent to angle ABC.
With angle ABC, we have
A firstB secondC thirdThe order is important.
Looking at the triangle on the right, we see that
angle A has three arc marksangle B has one arc markangle C has two arc marksThe sequence of arc markings can be written as 3,1,2
Now focus your attention on the triangle on the left. Start with the triple arc angle, move to the single arc angle, then go to the double arc angle. You should trace out M, N then P in that exact order.
Therefore [tex]\angle ABC \cong \angle MNP[/tex]
Note how M is first, N is second, then P is third.
This lets us form these pairs of congruences
A = M (first letters; triple arc marking)B = N (second letters; single arc marking)C = P (third letters; double arc marking)Hi! I've been stuck on this for awhile although it seems so easy I can't get by it :/
Answer:
x > -17/6 or x < -1/2
Step-by-step explanation:
4 |3x + 5| + 20 > 6
4 |3x + 5| > -14
|3x + 5| > -14/4
This is where the two equations split.
+:
3x + 5 > -14/4
3x > -17/4
x > -17/6
-:
- (3x + 5) > -14/4
3x + 5 < 14/4
3x < -3/2
x < -1/2
Supposedly these are your answers, but if I'm incorrect, please let me know. I don't see an option for you on that picture though.