Please help with these 3 questions about simplifying square roots...
Answer:
#2:
To get rid of a radical we multiply the radical by itself, so we multiply [tex]\frac{3}{\sqrt{2}} by \frac{\sqrt{2}}{\sqrt{2}}[/tex]
to get [tex]\frac{3\sqrt{2}}{2}[/tex].
#3:
[tex]\sqrt\frac{2}{5}[/tex] is the same as [tex]\frac{\sqrt{2}}{\sqrt{5}}[/tex] so we multiply by [tex]\frac{\sqrt{5}}{\sqrt{5}}[/tex] so we get [tex]\frac{\sqrt{10}}{5}[/tex].
#4:
We combine like terms to get [tex]-2\sqrt{2} + 4\sqrt{3}[/tex]
Hope this helps!
HEEEEEELPPPPPPPPPPPPPPPPPP PLSSSSSSSSSSSSSSSSSSSSS
Answer:
g(n) = 18 - 4n
Step-by-step explanation:
Given the recursive formula
g(n) = g(n - 1) - 4 with common difference d = - 4 and g(1) = 14
The explicit formula for an arithmetic sequence is
g(n) = g(1) + (n - 1)d , then
g(n) = 14 - 4(n - 1)
= 14 - 4n + 4
= 18 - 4n
I WILL GIVE BRAINLIEST TO THE PERSON WHO ANSWERS THIS QUESTION CORRECT
How many years do you have to wait for an initial value of 30000 dollars to compound interest into one million dollars? (Interest rate: 3.5%)
It would take 100.42 year for you to reach 1 million dollars.
Suppose a die is tossed 5 times. what is the probability of getting exactly 2 fours?
Answer:
the probability of getting exactly 2 fours is 0.16
Step-by-step explanation:
The probability of obtaining a number that is four = ¹/₆
The probability of obtaining a non 4 number = 1 - ¹/₆ = ⁵/₆
The number of ways 2 fours can be arrange in five numbers = ⁵C₂ = 10 ways
If the die is tossed five times, the probability of the events is calculated as;
P = 10 x (¹/₆)² x (⁵/₆)³
P = 10 x (¹/₃₆) x (¹²⁵/₂₁₆)
P = 10 x 0.02778 x 0.5787
P = 0.16
Therefore, the probability of getting exactly 2 fours is 0.16
The probability of exactly [tex]2[/tex] four's in [tex]5[/tex] tosses is [tex]0.1608[/tex].
Probability:Probability is a measure of the likelihood of an event to occur. Many events cannot be predicted with total certainty. We can predict only the chance of an event to occur i.e., how likely they are to happen, using it.
Let [tex]X[/tex] be the number of fours in [tex]5[/tex] coin tosses.
We have no. of tosses [tex]n=5[/tex].
Probability of a success i.e., getting four [tex](p)=\frac{1}{6}[/tex] and probability of not getting a four [tex](q)=\frac{5}{6}[/tex].
[tex]X[/tex] follows a binomial distribution. So,
[tex]P(X=x)=\binom{n}{x}p^{x}q^{n-x}[/tex]
[tex]\therefore[/tex] the probability of exactly [tex]2[/tex] four's in [tex]5[/tex] tosses is given by,
[tex]P(X=2)=\binom{5}{2}\left ( \frac{1}{6}^{2} \right )\left ( \frac{5}{6} \right )^{3}[/tex]
[tex]=0.1608[/tex]
Learn more about the topic of Probability: https://brainly.com/question/26959834
If a bag of 12 apples cost $4.20. What is the
cost per apple, or the unit rate?
FAST PLEASE
Answer:
the answer is going to be 0.35 cents to find the answer all you gotta do is divide 4.20 by 12 ☺ ☺ ☺ ☺ ☺
Need help plz
What number is half way between 3 and 4?
Answer:
um 3.5?
Step-by-step explanation:
Answer:
3.5
Step-by-step explanation:
if I'm understanding the question correctly, that is the answer
What is the percent decrease from 20 to 11?
Answer:
The decrease from 20 to 11 is 9, and that is 45% of 20.
Hope this helps!
If a 18 ft tall tree casts a 9 ft long shadow
then how tall is an adult giraffe standing near it that casts a 7
ft shadow?
Answer:
[tex] \boxed{ \tt{the \: adult \: giraffe \: is \to \: 14 \: ft}}[/tex]
The height of the giraffe standing near it which casts a shadow of 7 feet is 14 feet.
What is Scale Factor?Scale factor is the ratio of the dimension of the given original object and the dimension of the new object from the original.
Given that,
Actual height of the tree = 18 feet
Height of the shadow = 9 feet
Actual height = 2 × Shadow height
So, here the scale factor is 2.
Given Shadow height of the giraffe = 7 feet
Actual height of the giraffe = 2 × height of shadow of the giraffe
= 2 × 7 feet
= 14 feet
Hence the height of the giraffe is 14 feet.
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https://brainly.com/question/30215119
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An isosceles triangle has an angle that measures 134°. Which other angles could be in that isosceles triangle?
Answer:
[tex]23^{o}[/tex] and [tex]23^{o}[/tex]
Step-by-step explanation:
An isosceles triangle has two of its sides and angles to be equal. Let each of the unknown equal angles be represented by x. Since one of its angles measures 134°, then;
x + x + 134° = [tex]180^{o}[/tex]
2x + 134° = [tex]180^{o}[/tex]
2x = [tex]180^{o}[/tex] - 134°
= 46
x = [tex]\frac{46}{2}[/tex]
= [tex]23^{o}[/tex]
x = [tex]23^{o}[/tex]
The other angles that could be in the isosceles triangle are [tex]23^{o}[/tex] and [tex]23^{o}[/tex].
Geometry geometry geometry
Answer:
The equation is the second one
X^2 =6^2+11^2
X value = 12.53
Help meeeee please, I need this pronto, I will award extra points and brainliest
Answer:
532 m ^2
Step-by-step explanation:
18x18 + 1/2x8x 16 + 1/2 x 16 x18
324 + 64+ 144 = 532
PLS HURRY. I WILL GIVE BRAINLY
y ≤ 27. Which of the following statements is the best way to describe the value of y?
The value of y is less than 27.
The value of y is greater than 27.
The value of y is at most 27.
The value of y is at least 27.
Answer:
(−∞,27]
Step-by-step explanation:
Answer:
C) The value is at most 27
Step-by-step explanation:
Please help.
Algebra.
While shopping Marcy spent $59. If the amount she spent is 25% of her savings, how much savings did she have before she shopped
Answer:
Savings= $236
Step-by-step explanation:
Giving the following information:
Money spent= $59
Proportion of savings= 25% = 0.25
To calculate the total savings before shopping, we need to use the following formula:
Savings= money spent / proportion of savings
Savings= 59 / 0.25
Savings= $236
Lennox must make two dentist appointments in November. He writes the numbers from 1 to 30 on papers to represent the days that he could go to the dentist, puts them in a bag, and pulls two papers at random from the bag without replacement. What is the probability that both appointments will be within the first five days of November?
Answer: [tex]\dfrac{2}{87}[/tex]
Step-by-step explanation:
Given
Lennox marks 30 papers to represent the dates
He has to choose two papers marked 1 to 5 to get the appointment within the first five days of November
This can be done in [tex]^5C_2[/tex] ways
The total no of ways is [tex]^{30}C_2[/tex]
Probability is
[tex]\Rightarrow P=\dfrac{^5C_2}{^{30}C_2}=\dfrac{5\times 4}{30\times 29}\\\\\Rightarrow P=\dfrac{2}{87}[/tex]
evaluate 6m + 1 for m = -2
13
-13
11
-11
-5
Answer:
m= −2 /7
Step-by-step explanation:
Let's solve your equation step-by-step.
6m+1m=−2
Step 1: Simplify both sides of the equation.
6m+1m=−2
6m+m=−2
(6m+m)=−2(Combine Like Terms)
7m=−2
7m=−2
Step 2: Divide both sides by 7.
7m /7 = −2 /7
That’s the picture can u help me now???
Answer:
A
Step-by-step explanation:
For rectangle ABCD, find m∠ADB.
Answer:
we know all angles are 90° in the rectangle
therefore, angle d = bdc+bda = 90
=> 31+bda = 90
=>angle bda= 59
The measurement of the angle ADB should be considered as the 59 degrees.
Calculation of the measurement of the angle ADB:Since we know that all angles in the rectangle should be of 90 degrees
So,
Here angle d = bdc + bda
= 90
Now
31 + bda = 90
So, bda = 90 - 31
= 59
hence, The measurement of the angle ADB should be considered as the 59 degrees.
Learn more about rectangle here: https://brainly.com/question/1916433
Tyler used 1 1/2 gallons of paint to paint 5/7 of a fence. How many gallons will it take to paint the whole fence?
1) Write a multiplication equation representing this question.
2) Write a division equation representing this question.
Explain your reasoning.
9514 1404 393
9514 1404 393
Answer:
1) (1 1/2)(7/5) = g
2) (1 1/2)/(5/7) = g
Step-by-step explanation:
1) Tyler has painted 5/7 of the 7/7 of the fence. So the total amount of the fence is (7/7)/(5/7) = 7/5 as much as what was already painted.
The total amount of paint needed is then 7/5 the amount already used:
g = (7/5)(1 1/2) . . . . . gallons of paint needed for the whole fence
__
2) If g gallons are required for the whole fence, the amount used so far for 5/7 of the fence is 5/7 of the quantity required:
(5/7)g = 1 1/2
g = (1 1/2)/(5/7) . . . . division expression for the paint needed
find the value of given expression
[tex] \sqrt{387 \times 387} [/tex]
Answer:
√{387×387}=√387²=387 is your answer
Graph the equation 6x - y=-1
Answer:
[tex] - \frac{146}{5} [/tex]
that the answer
(Choose all that apply): Find the exact and approximate volume for the sphere below. Round to the nearest hundredth (two decimal places), and use π = 3.14 to find the approximate volume of the sphere. 37.33π yd³
2143.57 yd³
117.23 yd³
682.67π yd³
Answer:
What is the radius?
Step-by-step explanation:
Hope this helps yall! Have an Amazing day!!
A ship has a length of 110 m. A scale model is made of the ship. The model has a length of 2 m. Complete the sentence describing the scale of the model. 1 m represents
Answer:
55m
Step-by-step explanation:
A scale model is a reduced sized of the actual model
If 2m represents 110m, then 1m = 110/2 = 55m
I NEED HELPPP ON THIS PLZZZ
Answer:
Perimeter of ABCD = 56 units
Perimeter of WXYZ = 140 units
Step-by-step explanation:
To find the perimeter of ABCD, find the sum of all sides
18 + 18 + 10 + 10 = 56
To find the side lengths of WXYZ, use the equation: [tex]\frac{image}{pre-image}[/tex]
45/18 = 2.5
You can also cross multiply to find the missing side lengths, but I'll show you this other way...
Multiply the pre-image side lengths by 2.5
18 × 2.5 = 45
10 × 2.5 = 25
45 and 25 of the new side length of WXYZ
To find the perimeter of WXYZ, find the sum of all sides.
45 + 45 + 25 + 25 = 140
WX = 45, XY = 25, YZ = 45, ZW = 25
Sara says" If you subtract 12 from my number and multiply the difference by -4 the result is -44. What is Sara's number?
Answer:
23
Step-by-step explanation:
divide -4 by -44 and you get 11, add 12 because 12 was taken away and you get 23. 11+12=23 23-12=11
Sophia's math class has 6 fewer boys than girls, and there are g girls. Write
an expression for the number of boys.
Answer:
g-6=b
hope this helps
. Jumbo bought 5 books, each with a whole-number price.
The mean price of the books was $10. The median price was $8.
The most expensive book cost $15 and the cheapest cost $6.
What are the possible prices for the other books?
Mean is average. Multiply total books by the mean to find the total cost:
5x 10 = $50 total.
Subtract the highest and lowest prices to find the total of the remaining 3 books.
50 - 15-6 = 29
The median price was 8, this is the middle number, subtract 8 from 29 to get the cost of the last 2 books:
29-8 =21
Now you need a price lower than the median but higher than the lowest cost so that has to be 7
Subtract 7 from 21 to get the cost of the last book 21-7 = 14
The price of the remaining books is $7 and $14
GIVING BRAINLIEST
ABC is dilated by a factor of to produce A'B'C'.
What is AB, the length of AB after the dilation? What is the measure of <A?
Answer: The answer is A
Since we are dilating by 1/2 the image must get smaller. Now that we know that you can divide the side lengths by 2 (or multiply by 1/2) to get A'B' equals 17. Angles measures don't change during dilation because it only affects the side lengths, so angle A' is still 28 degrees
Hope this helped you!
Answer:
A
Step-by-step explanation:
yup
Hello you have reached a reference page. The first to answer this question will get brainliest and a 5 star review. If it is incorrect you will not get the brainnliest and your answer will be deleted. Here is the question. You will also need to give a very specific explanation.
[tex]x^2-5x+6=0[/tex]
