Answer:
1. b
2. a
3. c
4. b
5x(12-4)+3=?
PLEASE HELP WILL MARK BRAINLIEST!!!!!
Answer:
D. 43
Step-by-step explanation:
first do everything inside paranthesis (12-4)=8
then multipy 8 by 5= 40
40+3=43
hope this helps
Answer:
43
Step-by-step explanation:
I need help wit this
Answer:
i don't know how to explain the answew to you
Step-by-step explanation:
Element X is a radioactive isotope such that every 22 years, its mass decreases by
half. Given that the initial mass of a sample of Element X is 50 grams, how long
would it be until the mass of the sample reached 41 grams, to the nearest tenth of a
year?
Answer: The time taken for the mass to reduce from 50 g to 41 g is 6 years
Step-by-step explanation:
Expression for rate law for first order kinetics is given by
[tex]t=\frac{2.303}{k}\log\frac{a}{a-x}[/tex]
where,
k = rate constant
t = age of sample
a = let initial amount of the reactant
a - x = amount left after decay process
a) for completion of half life:
Half life is the amount of time taken by a radioactive material to decay to half of its original value.
[tex]t_{\frac{1}{2}}=22 years[/tex]
[tex]k=\frac{0.693}{t_{\frac{1}{2}}}=\frac{0.693}{22}=0.0315years^{-1}[/tex]
b) for mass to reduce from 50 g to 41 g
[tex]t=\frac{2.303}{0.0315}\log\frac{50}{41}[/tex]
[tex]t=6years[/tex]
The time taken for the mass to reduce from 50 g to 41 g is 6 years
[tex]y = - .011x + 24.9[/tex]
describe this relationship in words.
Step-by-step explanation:
The given relation is :
[tex]y=-0.11x+24.9[/tex] ...(1)
We need to describe this relationship in words.
The general equation of a line is given by :
y = mx +c ...(2)
comparing equations (1) and (2).
m = -0.11 and c = 24.9
It shows that the slope of the line is -0.11 and the y-intercept is 24.9.
Kayla flips a quarter 200 times. She expects that
heads and tails should each come up 100 times.
She recorded that heads came up 93 times and
tails came up 107 times.
Which is the best explanation for her results?
• The coin was not correctly balanced
She flipped the coin and it kept landing on the floor
She did not always flip the coin the same way
Experimental probability is likely to be slightly different from
theoretical probability,
Answer:
Experimental probability is likely to be slightly different from theoretical probability.
Step-by-step explanation:
This is because there is a 50-50 chance, but it is unlikely to be exactly 100-100. That is just to hypothesis!
The first three terms of a geometric sequence are given. Find the 8th term. Round to the nearest thousandth (if necessary).
2,4,8, ...
Answer:
2 4 8 16 32 64 128 256
Step-by-step explanation:
its doubleing evrey time
Answer:
7.594
Step-by-step explanation:
. Coach Bryant schedules soccer practice from 4:00 PM to 5:15 PM. His team
spends 10 minutes stretching and ½ hour passing the ball. The rest of the
time is spent on skill drills. How much time does Coach Bryant’s team spend
on skill drills? Use the number line to help you solve.
Start practice is 4:00 pm
End Practice is 5:15 pm
Answer Choices:
A. 30 minutes
B. 35 minutes
C. 75 minutes
D. 65 minutes
Answer:
B
Step-by-step explanation:
4.00 minus 5.15 is 1.15
1.15 minus 10 minus 30 is 35
Which of the following has more than one pair of opposite parallel sides?
select all that apply
trapezoid
rhombus
rectangle
square
Answer:
Rectangle and also parallelograms as well.
Step-by-step explanation:
Rectangles have two pairs and four right angles. So more than one.
Answer:
-Square
-Rectangle
-Rhombus
(my sister needs help with this)
Peter says 3
4 of a pizza is always the same
as 6
8 of a pizza. Nadia says while 3
4 and 6
8 are
equivalent fractions, 3
4 and 6
8 of a pizza could
represent different amounts.
Who is correct? Explain. Use a drawing to
justify your argument.
Use a counterexample to explain who
is correct
Answer:
Nadia is right
Step-by-step explanation:
if you use cross multiply 3/4 6/8. 8 x 3 = 24, 6 x 4 = 24, the two answer are both 24.
How many 1/3-yard long pieces of wood can be cut from 1-yard long piece of wood?
Answer:
3 pieces
I hope this helps
Step-by-step explanation:
X(1/3) = 1
x/3 = 1
X= 1×3 = 3
Solve for x
Need help on this
what’s the ratio 3:12:9 in its simplest form.
Answer:
1:4:3
Step-by-step explanation:
Hope that helps.
Have a good day and stay safe!
Answer: 1 : 4 : 3
Step-by-step explanation:
Their greatest factor is 3 so you had to divide all by 3.
3 ÷ 3 = 1
12 ÷ 3 = 4
9 ÷ 3 = 3
Please help me I need help with this math assignment I don’t understand it at all
Is their any instructions to what to do?
Answer:
Factor the expressions
Step-by-step explanation:
I'll do one for you
11) x²-11x+30
x²-5x-6x+30
x(x-5)-6x+30
x(x-5)-6(x-5)
solution: (x-5)(x-6)
can someone help me asap? pls
Answer:
Step-by-step explanation:
A triangular prism has three rectangular sides and two triangular faces. To find the area of the rectangular sides, use the formula A = lw, where A = area, l = length, and h = height. To find the area of the triangular faces, use the formula A = 1/2bh, where A = area, b = base, and h = height hope this helped somehow ;-; sry if not
If a leaky faucet drips one ounce of
water per minute, approximately how
many gallons per day would that be?
A. 0.5625
B. 5.625
C. 1.125
D. 11.25
Answer:
join kvp-cgtc-yjz
Step-by-step explanation:
1.125 is the answer
If the measure of each exterior angle is twice as large as each interior angle, the polygon must be a regular
Answer:
y+o+u+t+u+b+e +biggie smalls
Step-by-step explanation:
The polygon will be a triangle if the measure of each exterior angle is twice as large as each interior angle.
What is a regular polygon?
A polygon is a geometric figure with a finite number of sides in two dimensions. On the sides or edges of a polygon, straight-line segments are joined end to end to form a closed shape. The vertices, also known as corners, are the points where two line segments meet and form an angle.
As we know, the interior angle is given by:
= 180(n - 2)
Sum of the exterior angle is 360 degree
(360/n) = 2[180(n - 2)]/n
360 = 360(n - 2)
n = 3
Number of sides n = 3
Polygon will be a triangle
Thus, the polygon will be a triangle if the measure of each exterior angle is twice as large as each interior angle.
Learn more about the regular polygon here:
brainly.com/question/11810316
#SPJ2
PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!
What is the missing side?
Answer:
18. lol
Step-by-step explanation:
Answer:
using the Pythagoras theorem,
[tex]a { }^{2} + b {}^{2} = c {}^{2} [/tex]
144+225=c squared
369=c sqared
13=c
so, your unknown value is 13
WILL GIVE BRAINLIEST TO CORRECT ABSWER. can someone please solve 2,4,6, and 8
Answer:
pls resnap, i tried to zoom in but i can't see clearly
Graph y = -3.2 + 9. Then identify the x-intercept.
Answer:
9
Step-by-step explanation:
if you mean -3.2x+9 then the answer is 9 because you plug in 0 into x and solve the equation, you get the x intercept
Solve the inequality 4/3 < -8/3y.
Answer:
The answer to this inequality is y < -1/2.
Hope this could help you! (*^წ^*)
Answer:
[tex]y<-\frac{1}{2}[/tex]
Step-by-step explanation:
[tex]\frac{4}{3}<-\frac{8}{3}y[/tex]
[tex]-\frac{8}{3}y>\frac{4}{3}\\[/tex]
[tex]\left(-\frac{8}{3}y\right)\left(-1\right)<\frac{4\left(-1\right)}{3}[/tex]
[tex]\frac{8}{3}y<-\frac{4}{3}[/tex]
[tex]3\cdot \frac{8}{3}y<3\left(-\frac{4}{3}\right)[/tex]
[tex]8y<-4[/tex]
[tex]\frac{8y}{8}<\frac{-4}{8}[/tex]
[tex]y<-\frac{1}{2}[/tex]
Hope this helps!
All the love, Ya boi Fraser :)
line f has a slope of -9/2. line g is perpendicular to f what is the slope of line g
Answer:
The slope of line g is [tex]\frac{2}{9}[/tex].
Step-by-step explanation:
We know that line f has a slope of [tex]-\frac{9}{2}[/tex] and that line g and line f are perpendicular to each other. Perpendicular lines have slopes that are opposite reciprocals of each other. Thus, the opposite reciprocal of [tex]-\frac{9}{2}[/tex] must be the slope of line g.
To find the opposite reciprocal of a number, change its sign and swap the numbers of the numerator and the denominator. So, the opposite reciprocal of [tex]-\frac{9}{2}[/tex] must be [tex]\frac{2}{9}[/tex]. [tex]\frac{2}{9}[/tex] has to be the slope of line g as well.
a square has a perimeter of 60 cm. what is the length of each side?
Answer:
15! all the sides are the same length
Step-by-step explanation:
60/4
15
I need help on homework.
J = (3,0)
K = (3,negative two)
L = [ 0, negative two]
I apologise for the way this is set out, half of the keys on my laptop do not work
Answer:
J- (3,0)
K- (3,-2)
L- (1,-2)
Reasoning- Just move the points to where it's asking.
Supongamos que el 20% de los objetos fabricados por una empresa son defectuosos. Escogemos 4 objetos al azar. Hallar la probabilidad de que (a) 2 sean defectuosos, (b) 3 sean defectuosos, (c) ninguno sea defectuoso.
Responder:
0,1536
0.0256
0.4096
Explicación paso a paso:
Dado que :
p = 0,2
Número de ensayos, n = 4
1 - p = 1 - 0,2 = 0,8
Probabilidad de que 2 sean defectuosos;
Usando la fórmula de distribución binomial:
P (x = 2)
P (x = x) = nCx * p ^ x * (1 - p) ^ (n - x)
P (x = 2) = 4C2 * 0.2 ^ 2 * 0.8 ^ 2
P (x = 2) = 6 * 0,04 * 0,64
P (x = 2) = 0,1536
3 están defectuosos:
P (x = 3) = 4C3 * 0,2 ^ 3 * 0,8 ^ 1
P (x = 3) = 4 * 0,008 * 0,8
P (x = 3) = 0,0256
Probabilidad de que ninguno sea defectuoso:
P (x = 0) = 4C0 * 0.2 ^ 0 * 0.8 ^ 4
P (x = 0) = 1 * 1 * 0,4096
P (x = 0) = 0,4096
Usando la distribución binomial, se encuentra que hay una probabilidad de:
a) 0.1536 = 15.35% que 2 sean defectuosos.
b) 0.0256 = 2.56% que 3 sean defectuosos.
c) 0.4096 = 40.96% que ninguno sea defectuosos.
Para cada objeto, solo hay dos resultados posibles. O está defectuoso o no lo es. La probabilidad de que un objeto sea defectuoso es independiente de cualquier otro ítem, lo que significa que se utiliza la distribución binomial para resolver esta cuestión.
Distribución binomial:
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
Los parámetros son:
n es el número de ensayos. p es la probabilidad de éxito en un ensayo x es el número de éxitosEn este problema:
4 objetos, por eso [tex]n = 4[/tex].20% son defectuosos, por eso [tex]p = 0.2[/tex].Item a:
Esta probabilidad es P(X = 2), o sea:
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 2) = C_{4,2}.(0.2)^{2}.(0.8)^{2} = 0.1536[/tex]
Probabilidad de 0.1536 = 15.35% que 2 sean defectuosos.
Item b:
Esta probabilidad es P(X = 3), o sea:
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 3) = C_{4,3}.(0.2)^{3}.(0.8)^{1} = 0.0256[/tex]
Probabilidad de 0.0256 = 2.56% que 3 sean defectuosos.
Item c:
Esta probabilidad es P(X = 0), o sea:
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 0) = C_{4,0}.(0.2)^{0}.(0.8)^{4} = 0.4096[/tex]
Probabilidad de 0.4096 = 40.96% que ninguno sea defectuosos.
Un problema similar es dado en https://brainly.com/question/25132113
EXTRA POINTS- Find the volume of the following solids
Answer: Their are 40 cm salsa in the jar.
1500cm are missing in the jar.
Step-by-step explanation:
Because cm is 10 and if you multiply 10x15 you will get 1500. If you multiply 10 and 4 you will get 40.
Find the volume of the prism.
7 m
20 m
24 m
The volume of the prism is
I NEED HELP
Answer:
i dont know im sorry
Step-by-step explanation:
Find all solutions of the equation in the interval [0, 2pi).
(2sinx-sqrt2)(3cscx-2sqrt3) = 0
x - 21 = 19
x = please help
Answer:
x=40
Step-by-step explanation:
plz make the other person the brainliest thanks!
5/6 + (-4/9) -(-2).
Answer:
= 2 7/18
Step-by-step explanation:
Follow the PEMDAS order of operations.
Add and subtract left to right
=43/18 (as an improper fraction)
=2 7/18 (as a mixed number)
Please i need help ASAP