whats the square root of 55
Answer:
7.4161984871
Step-by-step explanation:
7.4161984871x7.4161984871=55
Answer:
3025
Step-by-step explanation:
Ellie missed 76 questions on her multiple choice history final and earned a grade of 62%. How many total questions were on the final exam?
Answer:
200 questions on the final exam.
Step-by-step explanation:
38% = 76 questions, 100% = 2.63157894737 x 76 = 200
(100/38=2.63157894737 hence this is the answer)
I NEEED HELP QUICK!!!
Put in order from greatest to least: -5, -10, -1/2, -2.5, -0.25
Answer:
-0.25, -1/5, -2.5, -5, -10
Step-by-step explanation:
if john has 5 apples in he gives 2 two his friend how many will have in all
Answer:
5 apples
Step-by-step explanation:
Answer:
3 5-2=3
Step-by-step explanation:
The company is going to choose three rows in each section to win the hats. There are 46 rows in a
section. If you are sitting in a winning section, what is the probability that you are not sitting in a winning
row?
Answer:
[tex]\frac{43}{46}[/tex]
Step-by-step explanation:
3 out of 46 rows are going to win, meaning that 43 out of 46 rows are not going to win
Make that a fraction:
[tex]\frac{43}{46}[/tex]
help me, please......
Answer:
(x, y ) → (x - 4, y + 8 )
Step-by-step explanation:
4 units left in the x- direction means subtract 4 from the x- coordinate
8 units up in the y- direction means add 8 to the y- coordinate
Then the translation rule is
(x, y ) → (x - 4, y + 8 )
Suppose A< - 1 what must be true about the value of b so that ab< a
Answer:
b must be positive
Step-by-step explanation:
if a is less than -1
that means to get smaller numbers
b needs to be positive
so that when a is multiplied by b you would have
numbers that are more negative
Answer:
b > 1
Step-by-step explanation:
Given:
a < -1 ab < aSubstituting a = -1 into ab < a
⇒ (-1)b < -1
⇒ -b < -1
⇒ b > 1
If a < -1 then a is negative. If ab < a then ab is also negative.
In order for ab to be negative (when a is negative) b must be positive.
For ab < a then b > 1.
Proof
If b = 0.5 and a = -1.5 then ab = -0.75
As -0.75 > -1.5 then ab > a so this cannot be true.
If b = 1.5 and a = -1.5 then ab = -2.25
As -2.25 < -1.5 then ab < a so this is true.
Therefore b > 1
Consider the equation below. n2 3h2 right arrow. 2nh3 what is the mole ratio of hydrogen to ammonia? 1:1 1:2 3:2 5:4
The mole ratio of hydrogen to ammonia in the equation N₂ + 3H₂ → 2NH₃ is 3:2
How to find mole ratio?we will balance the equation to find the mole ratio of the hydrogen to ammonia.
Therefore,
N₂ + 3H₂ → 2NH₃
From the equation, Nitrogen has a coefficient of 1 , Hydrogen have a coefficient of 3 and ammonia have a coefficient of 2.
Therefore, the coefficient of the substance is the number of moles.
Hence, the mole ratio of hydrogen to ammonia is 3:2
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In ΔABC, if C is a right angle, what is the measure of x?
Answer:
x ≈ 72.3°
Step-by-step explanation:
using the cosine ratio in the right triangle
cos x = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{AC}{AB}[/tex] = [tex]\frac{7}{23}[/tex] , then
x = [tex]cos^{-1}[/tex] ( [tex]\frac{7}{23}[/tex] ) ≈ 72.3° ( to the nearest tenth )
A medical sales representative of a certain antibacterial cream ask people who visited their kiosk whether they have tried to use their brand before. What sampling technique was used in this situation?
Cluster Sampling
Volunteer Sampling
Stratified Sampling
Simple Random Sampling
The sampling technique that was used in the situation is (d) Simple Random Sampling
How to determine the sampling technique?From the question, we understand that all people that visited the kiosk were asked the same question.
The people that visited the kiosk have equal chance of being selected.
This type of selection or sampling is a simple random sampling
Hence, the sampling technique that was used in the situation is (d) Simple Random Sampling
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Which expression is equivalent to
(
3
4
7
5
)
3
?
Logan has x twenty-dollar bills and 1 fifty-dollar bill. How much money does Logan have? Write your answer as an expression,
Answer:
Logan has 20x + 50 dollars.
Hope this helps!
Answer:
20x+50
Mark brainliest :)
If angle b measures 25°, what is the approximate perimeter of the triangle below? a right triangle is shown. angle a is 90 degrees and angle b is 25 degrees. side a b has a length of 4. 10.3 units 11.8 units 22.1 units 25.2 units
Answer:
Step-by-step explanation:
I think the answer is 10.48 or 10.3, It was a little difficult because I solved this multiple ways but I do believe 10.48 is more accurate, I apologize however if I am wrong.
Answer:
10.3
Step-by-step explanation:
its right
7. What is the surface area of the triangular prism shown?
Answer:
1120 yd²
Step-by-step explanation:
Surface area =
(Perimeter of the base × Length of the prism) + (2 × Base Area) =
(S1 + S2+ S3)L + bh
(17 + 15+ 8)25 + 15*8
40*25+120
1000+120 =
1120
cuemath
Which graph represents the solution of y > x2 + 2?
The graph that represents the solution of y>x²+2 is given below.
The given inequality is y>x²+2.
We need to identify which graph represents the solution of y>x²+2.
What is an inequality graph?Inequalities that use ≤ or ≥ symbols are plotted with a solid line to show that the line is included in the region.
For example, this graph shows inequality. This can be seen as there is a dashed line, and the region where the coordinates are less than -1 is shaded.
Graph the inequality by finding the boundary line, and then shading the appropriate area.
Put x=0, 1, 2, 3,....in the inequality and solve for y.
We get y=2, 3, 6, 11,...
The graph that represents the solution of y>x²+2 is given below.
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Answer:
I did it and got it correct
Step-by-step explanation:
what’s the value of x
Answer:
x = 11
Step-by-step explanation:
282/2 = 141
180 - 141 = 39
4x - 5 = 39
4x = 44
x = 11
4(x+3)-7>=x+3(x+1)
Solve the inequality
Step-by-step explanation:
4(x+3) -7 >= x + 3 (x +1 )
4x + 12 - 7 >= x + 3x + 3
4x - x - 3x >= 3 - 12 + 7
0 >= -2
hey I have done this according to logic if your school has a method please follow that also m not sure if my answer is correct hope it helps though.
Find the diameter of a circle with a
circumference of 63 ft.
Answer:
20ft
Step-by-step explanation:
circumference of a circle in terms of diameter has the formular
C = πd
63 = 3.142×d
d= 63/3.143=20.050
diameter= 20ft
PLEASE HELP ME
Select the correct answer. Which stem and leaf plot represents the given data set?
Answer:
i think its x
Step-by-step explanation:
it looks simple yet intimidating
The mean of the following data is 509.
{419,450,462,499,520,521,589,612}
What is the mean absolute deviation for the data set?
Enter your answer as a number rounded to the nearest tenth, like this: 42.5
If the mean value of the data set is 509. Then the mean absolute deviation (MAD) for the data set will be 51.5.
What is the mean absolute deviation?It is the average distance between each data point and the mean.
The mean of the following data is 509.
{419, 450, 462, 499, 520, 521, 589, 612}
Then the mean absolute deviation (MAD) for the data set will be
[tex]\rm MAD =\dfrac{1}{n}\sum_{i=1}^{n}\left|x_i - \mu \right|[/tex]
We have
μ = 509
n = 8
Then
[tex]\rm MAD =\dfrac{1}{8} \times (|419 - 509| + |450- 509| + ..... + |612 - 509|) \\\\MAD = 51.5[/tex]
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Triangle DEF is simialar to triangle ABC
Step-by-step explanation:
This is false as you do not what type of triangle that it is
what’s the circumference, to this problem ?
Answer:
9.42 i think
Step-by-step explanation:
Answer:
The formula to get the circumference of a circle is [tex]C=2*\pi * r[/tex] but in this case we see that a diameter is being used therefore we can get rid of the 2 and the r because that is what the diameter and just replace d into there like this [tex]C=d*\pi[/tex].
We can then input the value and we get that [tex]C=3*\pi[/tex] which then just narrows down to [tex]C=9.425[/tex].
Hope this helps! Let me know if you have any questions
what’s the area and the perimeter and of the triangle?
Divide. (4x^4 - 4x^2 - x-3) = (2x^2 – 3)
Answer:
[tex]\frac{4x^4 - 4x^2 - x - 3}{2x^2 - 3}[/tex]Step-by-step explanation:
Step 1:
Simplify: [tex]\frac{4x^4 - 4x^2 - x - 3}{2x^2 - 3}[/tex]Checking for a perfect cube:
4x⁴ - 4x² - x - 3 is not a perfect cube.Trying to factor by pulling out:
Factoring: 4x⁴ - 4x² - x - 3 Thoughtfully split the expression at hand into groups, each group having two terms:Group 1: - x - 3 Group 2: 4x⁴ - 4x³ Pull out from each group separately:Group 1: (x + 3) • (-1)Group 2: (x² - 1) • (4x²)Bad news!! Factoring by pulling out fails:The groups have no common factor and can not be added up to form a multiplicationFinal result:
[tex]\frac{4x^4 - 4x^2 - x - 3}{2x^2 - 3}[/tex]The multiplication of two rational numbers results in a _____________
===========================================================
Explanation:
The proof of this is as follows
p, q, r and s are integers
q and s cannot be zero
A = some rational number = p/q
B = some other rational number = r/s
A*B = (p/q)*(r/s) = (p*q)/(r*s)
The result is of some form integer/integer, where the denominator is nonzero. This shows that A*B is rational.
Therefore,
rational*rational = rational
---------------
A few examples:
(1/2)*(3/7) = (1*3)/(2*7) = 3/14(2/5)*(9/8) = (2*9)/(5*8) = 18/40 = 9/20(7/3)*(-1/9) = (7(-1))/(3*9) = -7/27Side note: any whole number is a rational number. For instance, the number 7 can be thought of as the fraction 7/1 or 14/2 or 21/3 and so on.
What are the coordinates of points B, C, and E?
Answer:
B (-4, 8)
C (3, 5)
E ( 7, 0 )
Step-by-step explanation:
Text Book
A 3% fee is taken out of an initial amount of $3,460, and then a $100 fee is taken after that, leaving a new amount of
Answer:
turn 3% into decimal by diving 3 by 100
3/100=0.03
0.03X3460=103.80
3460-103.80=3356.20
3356.20-100=3256.2
6. At one point, there were only 2,410
black rhinos left on Earth. With the help
of conservation efforts, the black rhino
population then increased by about 130%.
About how many black rhinos were on
Earth then?
5543 rhinos.
Explanation:present population: total population(100% + increased percentage)
Based on the information, insert following :
Black Rhinos = 2410(100% +130%) = 2410(230%) = 2410(2.3) = 5543
Find P(B|C). P(B|C) = StartFraction 9 Over 34 EndFraction = 0. 26 P(B|C) = StartFraction 9 Over 24 EndFraction = 0. 38 P(B|C) = StartFraction 9 Over 70 EndFraction = 0. 13 P(B|C) = StartFraction 9 Over 58 EndFraction = 0. 16.
The question is an illustration of probability, and the value of P(B|C) is P(B|C) = 9/24 =0.38
How to determine the probability P(B|C)?The table is given as:
C D Total
A 15 21 36
B 9 25 34
Total 24 46 70
The probability (BIC) is calculated using:
P(B|C) = n(B and C)/n(C)
From the table, we have:
n(B and C) = 9
n(C) = 24
So, the equation becomes
P(B|C) = 9/24
Evaluate
P(B|C) = 0.38
Hence, the value of P(B|C) is P(B|C) = 9/24 =0.38
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Answer:
B
Step-by-step explanation:
just did it
