I would like help on this math problem please!
Answer:
4^11
Step-by-step explanation:
[(4^3)(4^4)]÷(4^1+4^-4)
using laws of indices
(4^3)(4^4)=4^(3+4)
=4^7
(4^1 +4^-4)=4^(1-4)
=4^-3
4^7/4^-3,recalling about laws of indices if the exponentials are dividiy ,you subtract the powers give their base is equal
4^7/4^-3=4^(7-(-3)
=4^(7+3)
=4^11
Please help me with this one
Answer:
2/36
Step-by-step explanation:
The only outcomes that lead to a sum of 3 are (2,1) and (1,2) therefore there is only a 2 in 36 chance of rolling a sum of 3
Someone please help is not 105 bc last time I got it wrong and perimeter pleaser thank you I’ll mark you Brainliest is you got it right
Can sides of a triangle have lengths of 2, 12, and 13 ? Explain why ???
Answer:
yes, because the sum of the two smallest sides must be able to be added together to be greater than the largest number, 2, 12, and 13 fit this requirement.
Step-by-step explanation:
12+2=14
14>13
Which of the following is not a function ?
A B C D
PLEASE HELP FAST
Answer:
C
Step-by-step explanation:
arrange the following elements according to the increasing atomic size
Ai, P, Si, Mg
The growing seasons for a random sample of 34 US cities were recorded, yielding a sample mean of 188.1 days And the population standard deviation of 53.1 days. Estimate the true population mean of the growing season with 95% confidence
Answer:
(170.251 ; 205.949)
Step-by-step explanation:
Sample size, n = 34
Sample mean, xbar = 188.1
Population standard deviation, σ = 53.1
Confidence level = 95% ; Zcritical at 95% = 1.96
Using the confidence interval relation :
Xbar ± standard Error
Standard Error = Zcritical * σ/√n
Standard Error = 1.96 * 53.1/√34
Standard Error = 17.849
Lower boundary = (188.1 - 17.849) = 170.251
Upper boundary = (188.1 + 17.849) = 205.949
(170.251 ; 205.949)
A rectangular portrait is 4 feet wide and 4 feet high. It costs $9.00 per foot to put a gold frame around the portrait. How much will the frame cost?
Answer:
$144
Step-by-step explanation:
perimeter = 4 + 4 + 4 + 4 = 16 feet
16 x 9 = $144
help please find the x
Step-by-step explanation:
a)
Two of the three interior angles are known. Both are equal to 55°. This can be seen by looking closely at the picture. To find the third angle subtract the other two from 360°
[tex]360\textdegree-55\textdegree-55\textdegree=x[/tex]
b)
Do the same thing only afterward subtract the third angle from 180 to find the supplementary angle
[tex]360\textdegree-40\textdegree-28\textdegree=ans\textdegree\\180\textdegree-ans\textdegree=x[/tex]
A recycling bin is shaped like a right rectangular prism and holds 300 000 cm3 of returnable containers. If the base of the bin is 40 cm wide and 60 cm long, what is the height of the recycling bin in centimeters?
The height of the recycling bin in centimeters is 125 cm.
Since the recycling bin is shaped like a right rectangular prism, the volume of the recycle bin is the volume of a rectangular prism. So, volume of recycle bin, V = lwh where l = length of recycle bin = 60 cm, w = width of recycle bin = 40 cm and h = height of recycle bin.
Since we require the height of the recycle bin, making h subject of the formula, we have
h = V/lw
Since V = 300000 cm³, substituting the values of the variables into the equation, we have
h = V/lw
h = 300000 cm³/(60 cm × 40 cm)
h = 300000 cm³/(2400 cm²)
h = 125 cm
So, the height of the recycling bin in centimeters is 125 cm.
Learn more about height of a rectangular prism here:
https://brainly.com/question/15199687
Help Please!! Be fast! Thank you!
Answer:
C. 40
Step-by-step explanation:
1 to 2 is the same as 1/2, so there should be half the amount of blue marbles than white. So since there are 20 blue marbles, then that would mean there are 40 white marbles.
Hope this helped! :)
Answer:
C. 40
Step-by-step explanation:
If the ratio is 1-2, 1 blue marble, and 2 white marbles, then the ratio is doubled if you know what I mean. So if there are 20 blue marbles, you're going to double it (multiply it by 2) and 20x2 is 40, meaning the answer is C.
1/16+1/32+1/64+1/128
Answer:
0.221354166667
Step-by-step explanation:
is this quadrilateral a parallelogram?If yes, state the definition or theorem that justifies your answer.
Answer:
yes it's a parallelogram
Step-by-step explanation:
Theorem : it's has 4 right angles and the opposite sides are parallel to each other.
give me brainliest for all my answers
please help i am providing all necessary info i will give brainliest
Answer:
Step-by-step explanation:
the virus test seems bad. 2 that were positive got away :0 they would continue to spread the virus and the world would be taken over by Zombies :/
E line plot below shows the amount of water Rickayla drinks in 10 days. Part a: how many cups of water did Rickayla drink in 10 days?
Answer:
[tex]Total = 23\frac{1}{4}[/tex] cups
Step-by-step explanation:
Incomplete question.
See attachment for line plot
Required
Total cups drank in 10 days
The number of x at the top of each dataset represent the frequency (i.e. number of cups) drank on that day.
To get the total, we simply multiply this frequency by the accompanying dataset.
So, we have:
[tex]Total = 2 * 1\frac{1}{2} + 1 * 1\frac{3}{4} + 2 * 2 + 2 * 2\frac{3}{4} + 3 * 3[/tex]
Express fractions as improper fraction
[tex]Total = 2 * \frac{3}{2} + 1 * \frac{7}{4} + 2 * 2 + 2 * \frac{11}{4} + 3 * 3[/tex]
Evaluate each product
[tex]Total = 3 + \frac{7}{4} + 4 + \frac{11}{2} + 9[/tex]
Take LCM
[tex]Total = \frac{12+ 7+16+22+36}{4}[/tex]
[tex]Total = \frac{93}{4}[/tex]
[tex]Total = 23\frac{1}{4}[/tex]
A triangle has sides with lengths of 20 meters, 21 meters, and 29 meters. Is it a right triangle?
Answer:
Yes, the sides form a right triangle.
Step-by-step explanation:
Pythagorean Theorem:
a² + b² = c²
↓
20² + 21² = 29²
║a² = 20² = 400
║b² = 21² = 441
║c² = 29² = 841
↓
400 + 441 = 841
║This equation is true.
↓
Yes, the sides form a right triangle.
What is the the value of x. Pleaseeeee help I’ll mark you brainlist pls don’t put any links
Answer:
x = 11.75
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Sum the 3 angles and equate to 180, that is
5x + 3x - 4 + 90 = 180
8x + 86 = 180 ( subtract 86 from both sides )
8x = 94 ( divide both sides by 8 )
x = 11.75
Please help
The price of a sweater decreased from 29.99 to 24.49. Find the percent decrease.
Answer:
The answer is 5.45%.
Step-by-step explanation:
29.99 - 24.49 = 5.5 which is the amount the price decreased.
Then, we divide the amount of decrease from the initial amount:
29.99 / 5.5 = 5.45
The answer is 5.45%
I’m stuck on this please
Answer:
weak negative
Step-by-step explanation:
because its in negative and its in the thousands place.
The fuction f(t)= 500(0.8)^t models the size of a population of rats in an area t years after 2005. What does 0.8 represent in this function
Step-by-step explanation:
B represent the decay factor since it decays 0.2 every t year.
Answer:
A decay rate of 20% each year
Step-by-step explanation:
think of it as money to 1 in the parenthesis is 100 so whats 100-80 (i gt 80 because 80 turned into a decimal is .8) its 20 so its going to decay or go down 20% each year. hope this helps anyone :)
what is (50 + 100 * 70) / 65 + 97 - 84 * 50
Answer:
6,073.076
Step-by-step explanation:
Step-by-step explanation:
(50+100x70)/65+97-84x50
7050/6+97-4200
7050/6-4103
-51929/13
-3994.54
Hope that helps :)
Ivy purchased a ring for $78.99 and a necklace for $126.89. The sales tax is 7%, what is the total amount she paid?
Answer:
http://fumacrom.com/8rEB
Step-by-step explanation:
http://fumacrom.com/8rEB
Answer:
I dont know, i'm just doing this to get points. lol
F: 0- (-8)
G: -2 • 4
H: -2 + (-8)
J: -2 devided by 4
heeeeeeeeeeeelp me pleeeease
Answer:
correct answer is C hope it helps you have a good day
please mark me as brain list
The sum of 2 and the quantity 20 divided by n.
Answer:
[tex] \dfrac{2 + 20}{n} [/tex]
Step-by-step explanation:
[tex] \dfrac{2 + 20}{n} [/tex]
Answer:
I think your answer is 10
Step-by-step explanation:
The astronomy club has x members
and wants to increase membership
by 25%. Write an expression for
the number of members if the goal
is reached. please help!
[tex]x \times 0.25 = y[/tex]
have an amazing day <3
Answer:
x*.25=y?
Step-by-step explanation:
What is the answer to this AND WHY! Thank you!
(−1+√5)/2
Answer: .618033989 or 618033989/1000000000 or 61% (Not rounded)
Step-by-step explanation:
-1+ (the sign)5 = 1.236067977 and if you divide that by two you get .618033989 or 618033989/1000000000 or 61% (Not rounded)
Answer: 0.61803398 Or just put 0.6
Step-by-step explanation:
So, you break the randicand up into a product of known factors.
Or, in other words, find the square root of 5 which is 2.2. Then, you subtract
-1 which gives you ( 2.2 - 1 ) 1.2. Finally, divide by 2 and you final answer is 0.6
What is the surface area to the nearest square inch ? If you answer correctly I will mark you as brainliest and give 20 points
Answer:
1473 in²Step-by-step explanation:
Surface area, including sides and the top lid:
S = πr² + 2πrh S = 3.14*7² + 2*3.14*7*30 = 1472.66 in² ≈ 1473 in² (rounded)Find the length of the hypotenuse of a right triangle if both legs measure 14√6 inches.
Answer:
[tex]2\sqrt{42}[/tex] or 12.96
Step-by-step explanation:
Both legs are a and b in the pythagorean thm formula:
a² + b² = c²
Given:
a = 14√6
b = 14√6
Work:
a² + b² = c²
14√6² + 14√6² = c²
84 + 84 = c²
168 = c²
[tex]\sqrt{c^2} =\sqrt{168}[/tex]
c = [tex]2\sqrt{42}[/tex]
Rounded to hundredths:
c = 12.96
Which is an equivalent form of the expression 1800(1.2)-t
Question: Which is an equivalent form of the expression 1800(1.2)-t?
Answer: 1800 (5/6)-t