4(p+5)=21 plz plz plz plz
Answer:
p=1/4
Step-by-step explanation:
I got you girly don't worry!
Answer:
.25
Step-by-step explanation:
4(p+5)=21
distribute
4p+20=21
-20 -20
Bring down numbers
4p = 1
divide 1 by 4
=0.25
Ann runs 2/5 miles Kim runs 3/4 miles Who ran farther?
Answer:
kim
Step-by-step explanation:
2,5 is smaller
Answer:
Kim
Step-by-step explanation:
Compare them by having the same denominator.
5 x 4 = 20 (Denominator)
4 x 5 = 20 (Denominator)
If the denominator is multipled, the numerator also have to be multipled.
2 x 4 = 8 (Numerator)
3 x 5 = 15 (Numerator)
Ann = 8/20
Kim = 15/20
Simplify to create an equivalent expression. 7(2 + 2x) + (x + 2) x 6 =
Answer:
20x + 26
Step-by-step explanation:
Rewrite the equation to make distributing easier:
7(2 + 2x) + (x + 2) x 6
7(2 + 2x) + 6(x + 2)
Distribute the 7 and 6 to each set of parentheses:
14 + 14x + 6x + 12
Add like terms:
20x + 26
So, the equivalent expression is 20x + 26
!!!!!!!!!!!!!!!!!!!nossa
70PTS HELP ME OUT 2)
Answer:
ABCD is a cyclic quadrilateral in the circle.which sum of two opposite angle is 180
the figure below shows a shaded rectangular region inside a large rectangle
(pic)
What is the probability that a point chosen inside the large rectangle is NOT in the shaded region
Answer:
42% i hope its right if not sorry
Step-by-step explanation:
Find the 89th term of the arithmetic sequence 25, 35, 45, ...
Answer:
905
Step-by-step explanation:
arithmetic sequence are in form
a(n)=a(0)+d(n-1)
a(0)=25
common difference: d=35-25=10
a(n)=25+10(n-1)
a(89)=25+10(88)=905
A form of radium decays exponentially with a half-life of 20 years. This means that 50% will be gone every 20 years. A human can only withstand an exposure of 5 grams of this radium but 150 grams has leaked into the air.
Part A: Write an equation to model the exponential decay of this 150 grams of this form of radium.
Part B: A scientist claims that the area will e safe for humans after 100 years. Do you agree? Verify your answer mathematically and explain why you agree.
what is the product of 5x2 and(2×2)
Answer:
5 x 2 = 10 2 x 2 = 4
Step-by-step explanation:
5 twice is 10
2 twice is 4
Is x+y is an algebraic expression?
On what day of the year 2009 was the year 250 000 minutes old? Give the month and day?
[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]
22nd Junethanks hope it helpsThe day that would be 250, 000 minutes old for the year 2009 would be:
22nd June
Find the day of the yearGiven that,
No. of Minutes [tex]= 250, 000[/tex] minutes
We know that,
No. of minutes in an hour [tex]= 60[/tex] minutes
No. of hours in a day [tex]= 24[/tex] hours
So,
The number of minutes in a day [tex]= 24[/tex] × [tex]60[/tex]
[tex]= 1440[/tex] days
Now,
The number of days in 250, 000 minutes [tex]= 250,000/1440[/tex]
[tex]= 173.61[/tex] days
Beginning from January 1,
31(January) + 28(February) + 31(March) + 30(April) + 31(May) + 22(June)
= 173
∵ 22nd June as it's not a leap year.
Thus, the above response is correct.
Learn more about "Calendar" here:
brainly.com/question/4657906
What is 10+10
...........
Answer:
20
Step-by-step explanation:
The personnel department of a large corporation wants to estimate the family dental expenses of its employees to determine the feasibility of providing a dental insurance plan. A random sample of 12 employees reveals the following family dental expenses (in dollars): 115, 370, 250, 593, 540, 225, 177, 425, 318, 182, 275, and 228.
a.Construct a 90% confidence interval estimate for the standard deviation of family dental expenses for all employees of this corporation.
b.
Construct a 95% confidence interval estimate for the standard deviation of family dental expenses for all employees of this corporation.
c. Construct a 99% confidence interval estimate for the standard deviation of family dental expenses for all employees of this corporation
Solution :
a). Given :
a = [tex]$0.1$[/tex],
chisquare with the [tex]$0.05$[/tex],
[tex]$df=11$[/tex] is [tex]$4.57$[/tex] (from the chisquare table)
Chisquare with the [tex]$0.95$[/tex], df = [tex]$11$[/tex] is [tex]$19.68$[/tex] (from chisquare table)
So 90% Cl is
[tex]$\left(\frac{v(n-1)\times s}{v19.68}, \frac{v(n-1)\times s}{v4.57}\right)$[/tex]
[tex]$=\frac{\sqrt{11}\times 147.928}{\sqrt{19.68}},\frac{\sqrt{11}\times 147.928}{\sqrt{4.57}}$[/tex]
[tex]$=(110.5947,229.5031)$[/tex]
b). Given :
a = [tex]$0.05$[/tex]
Chisquare with [tex]$0.025$[/tex]
df = [tex]$n-1=11$[/tex] is A, [tex]$3.82$[/tex]
Chisquare with [tex]$0.975$[/tex], df = 11 is [tex]$21.92$[/tex]
So, 95% Cl is
[tex]$\left(\frac{v(n-1)\times s}{v21.92}, \frac{v(n-1)\times s}{v3.82}\right)$[/tex]
[tex]$=\frac{\sqrt{11}\times 147.928}{\sqrt{21.92}},\frac{\sqrt{11}\times 147.928}{\sqrt{3.82}}$[/tex]
[tex]$=(104.7916,251.0239)$[/tex]
c). Given a = [tex]$0.01$[/tex], chisquare with [tex]$0.005$[/tex], df = [tex]$11$[/tex] is [tex]$2.6$[/tex]
Chisquare with [tex]$0.995$[/tex], df = [tex]$11$[/tex] is [tex]$26.76$[/tex]
So 99% CI is
[tex]$\left(\frac{v(n-1)\times s}{v26.76}, \frac{v(n-1)\times s}{v2.6}\right)$[/tex]
[tex]$=\frac{\sqrt{11}\times 147.928}{\sqrt{26.76}},\frac{\sqrt{11}\times 147.928}{\sqrt{2.6}}$[/tex]
[tex]$=(94.84265,304.2706)$[/tex]
Choose which scenario could be represented by the expression $14.99%
a) The cost if you purchase 14 t-shirts at a cost of x dollars each
b) The cost if you purchase x t-shirts at a cost of $14.99 each
C) The sum of 14.99 and x
d) T difference between 14.99 and x
what is h−(−2.22)=−7.851 someone please help me
Answer:
h=-10.071?
Step-by-step explanation:
10x + 4y < 12
8x - 3y > 20
Answer:
I've attached a pic how the graph will look like
Answered by GAUTHMATH
Simplify the expression 38 +20ab -16 -3ab -5ab
A graduated cylinder is used to measure the volume of a
A. gas.
B. solid.
В.
C. liquid.
D. plasma.
Answer:
c
Step-by-step explanation:
liquid
9. Solve for the variable in 6/18=x/36
Answer:
12
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
Is anyone good at geometry if so can you help me please ?
And please do not play around this is very serious !
The arcs FA, AB, and BF make up the entire circle, so their measures sum to 360°:
arcFA + arcAB + arcBF = 360° → arcBF = 360° - 160° - 140° = 60°
By the inscribed angle theorem, angle BAF has measure equal to half of that of arc BF, so
angleBAF = 30°
By the secant-tangent theorem (not sure if there's an official name for it), the measure of angle ACF is equal to half the difference of the arcs it intercepts, namely BF and FA, so that
angleACF = 1/2 (arcFA - arcBF) = 1/2 (160° - 60°) = 50°
Now use the law of sines for solve for FA:
sin(angleACF) / FA = sin(angleBAF) / FC
sin(50°) / FA = sin(30°) / 10
FA = 10 sin(50°) / sin(30°) ≈ 15.3
The population of a city has decreased by 33% since it was last measured. If the current population is 13,400, what was the previous population?
0
Х
?
Continue
Answer:
1940.3
Step-by-step explanation:
The current population value is 13,400
Let the previous population be represented by y
The population of the city decreased by 33
Therefore the previous population can be calculated as follows
13400= y(100-33)/100
13400=( y×67)/100
13400= 100× 13400/67
= 100× 19.402
= 1,940.3
Hence the previous population is 1,940.3
What is the perimeter of the rectangle in the coordinate plane? y 36 units 15 147 38 units 13+ 12+ 65 units 117 O 70 units
Answer:
38 units
Step-by-step explanation:
14 * 2 = 28
5 * 2 = 10
28 + 10 = 38
Mark me as brainliest, I am trying to level up.
0.54 litres in cm ³
Answer:
540 cubic centimeters
Step-by-step explanation:
just move 0 on the other side
Hey there!
0.54 liters to ________ cm³
= 0.54 * 1,000
= 540
Therefore, your answer should be: 540 cm³
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
sue has 20 biscuits in a tin
i’m broke asl can someone send me some
money in my cash app?
Answer:
really? is this app for these kinda questions?
A table of x and y values is shown. what is the ratio of y to x in the table?
Answer:
you didnt add a photo, we cant help you
Step-by-step explanation:
PRETTY PLEASE HELP ME! this is 4 a test and i’m rlly struggling :/
55% of the undergraduates or female. If 2695 women attend the college how many total undergraduates attend the college
Answer:
Step-by-step explanation:
2695f(100/55f)=4900 undergraduates.
What value of y makes the equation true?
-7/12 = y/-36
A -21
B 28
C -28
D 21
Answer:
D) 21
Step-by-step explanation:
y= -7/12× -36
or, y= -7×-3
or, y= 21
Answer:
D
Step-by-step explanation:
Given
[tex]\frac{-7}{12}[/tex] = [tex]\frac{y}{-36}[/tex] ( cross- multiply )
12y = 252 ( divide both sides by 12 )
y = 21 → D
Guys I need help plz! ( it would mean a lot if u help )
Answer:
━☆゚.*・。゚X>6
Step-by-step explanation:
Here,X is greater than 6
Answer:
x > 6
Hope this helped <3
how do I find X thanks
Answer:
x = 60
Step-by-step explanation:
By applying mean ratio theorem in the given right triangles ΔABC and ΔBDC,
[tex]\frac{AD}{BD}=\frac{BD}{DC}[/tex]
BD² = AD × DC
BD² = 36 × 64
BD = [tex]\sqrt{36\times 64}[/tex]
BD = 48
By applying Pythagoras theorem in right triangle ΔADB,
AB² = AD² + BD²
x² = (48)² + (36)²
x² = 3600
x = 60