Hi, I need help with the EXPLANATION of this question. I have the right answer, but I am unsure why. 50 POINTS
Answers
Step-by-step explanation:
Using Pythagoras' Theorem, we have
x² + 10² = (12√3)²
Therefore x² = (12√3)² - 10²
= (144)(3) - (100) = 332.
=> x = √332 = 2√83. (B)
Related Questions
The changes in the depth of snow, in inches, at a ski resort for four days are shown below.
-1/8, 3/4, 3/4, -1/2
What is the average change in the depth of the snow during the 4-day period?
A. 2 1/8
B.3 1/2
C. 7/32
D. 17/32
Answers
Step-by-step explanation:
Total change = (-1/8) + (3/4) + (3/4) + (-1/2) = 7/8.
Average change = Total change / 4 days
= (7/8) / 4
= 7/32. (C)
The table below shows the number of peaches and cups of water used to make fruit punch according to a certain recipe. Peaches Water (cups) 64 96 56 84 How many cups of water are needed for every 1 peach? Note: Your answer may be exact or rounded to the nearest hundredth. label optional
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Answer:
fhyedGFYUSEGCFUEGFCYU
Step-by-step explanation:
pay back
Below are two parallel lines with a third line intersecting them.
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Answer:
132 degrees
Step-by-step explanation:
One sit of the 48 degrees is 48 degrees, so that opposite will be the same. Add them up, get 96. There is a full 360 degrees circle, so get 360 and subtract 96 from it, to get 264 degrees. That is the top and bottom angle of the right side, so just divide it in two
Answer:
I think x= 84
if the lines are parallel then the angle should be the same. Because one angle =48° the other side is likely to equal the same. Add 48+48, subtract 180 from your answer and that's how you get 84°. hope this helps
Please help, this is called Writing Equations
Answers
Answer:
I think its the 2nd one im not sure tho
Step-by-step explanation:
Answer:
first one is 14.
second one is 131-11=6B
Step-by-step explanation:
1) 252/18=14
2) you want to know how much 6 books sre and it says you got 11 dollars change so u take 11 from 131 to get the price of 6 books
hope that helps :)
24a+48=9(2a-4) please
Answers
Answer:
a = -14
Step-by-step explanation:
1. distribute
24a + 48 = 9(2a - 4)
24a + 48 = 18a - 36
2. subtract 48 from both sides of the equation
3. simplify
4. subtract 18a from both sides of the equation
5. simplify
6. divide both sides of the equation by the same term
7. simplify
solution: a = -14
hope this helped!
Please help 25 points and brainiest
Find the slope of the line between each pair of points
1-16 please help
Answers
Answer:
what i would do is look them up on a calculator if you have a calcoulater
Step-by-step explanation:
Answer: 21
Step-by-step explanation:
y = 7x-6
what is the slope?
Answers
Answer:
7
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
-6 is the y intercept
7 is the slope
y=mx+b
Haley bought a hamburger, two hotdogs, a large Order of fries, and one medium soda. How much change did she get from $20.00?
Hamburger: $4.25
Hotdogs: $2.50
Medium soda: $2.15
French fries: $2.95
A. $8.15
B. $5.65
C. $14.35
D. $11.85
Answers
Answer:
Her change would be $5.65
Step-by-step explanation:
4.25 + 2.50 + 2.50 + 2.95 + 2.15 = $14.35
20.00 - 14.35 = 5.65
The distance from the bottom of a ladder to the wall it leans against is one-fourth of the length of the ladder. If the ladder is 12 feet long, how far up the wall will the ladder extend?
Answers
Answer:
The ladder will extend 11.6ft up the wall
Wall will the ladder extend 11.6 ft
What is Pythagoras theorem?The Pythagoras theorem states that in a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
Given
Length of the ladder = 12 ft
Distance from the bottom = 1/4 of length of the ladder
= [tex]\frac{1}{4}[/tex] × [tex]12[/tex]
= 3 ft
By using Pythagoras theorem
[tex]12^{2}=x^{2} +3^{2}[/tex]
[tex]x^{2} =144-9[/tex]
[tex]x^{2} =135[/tex]
[tex]x=\sqrt{135}[/tex]
[tex]x=[/tex] ± 11.6 ft
Hence, wall will the ladder extend 11.6 ft.
Find out more information about Pythagoras theorem here
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123% of what is 111?
this is one of the reasons I hate math
Answers
Answer:
90.244
Step-by-step explanation:
111 ÷ 1.23 = 90.244
ah hurry!
In a bag, you have a strip of paper with the numbers 1-10 written on the strips. If one strip of paper is pulled from the bag and then replaced, what is the probability of the following events:
pick the number 3 and then picking the number 6.
A: 1/100
B: 1/10
C: 3/10
D: 6/10
Answers
Answer: A
Step-by-step explanation: 10x10=100
Mr. Ingram's lunch at a restaurant costs $13.00, without tax. He leaves the
waiter a tip of 17% of the cost of lunch, without tax. What is the total cost
of the lunch, including the tip, without tax?
$2.21
$10.79
$13.17
$15.21
Answers
so say if its 4:30 pm now for me, what time will it be in 4 and a half hours? im lazy lolz
Answers
Answer:
9:00
Step-by-step explanation:
what do I dooooo i dont know how to do dis
Answers
Answer:
Concept: Rate of change
Rate of change is always referred to as slope or the change over time Hence it is [tex] \frac{x}{y} [/tex]With x as the change and y as the time Let us fill our the table: Assume that the hourly rate is 10 Hence for 1 hour: total earning= 10For 10 hours: Total Earning= 100For 20 Hours: Total Earnings= 200 Rate brainlisti need to know the next sequence in these fractions simplified
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Answer:
The sequence is add 3/20
Step-by-step explanation:
Identify the number of solutions for the equation below:
Answers
Answer:
one solutionStep-by-step explanation:
Given the expression
3 -x = 2+x
We re to find the number of solutions we will have:
Subtract 2 from both sides
3-x-3 = 2+x -3
-x = x -1
subtract x from both sides
-x - x = x - 1 - x
-2x =-1
Divide both sides by -2
-2x/-2 = -1/-2
x = 1/2
Since the value of x is just 1, hence the equation has just one solution.
Caitlin earns $7.00 an hour doing yard work for her neighbor. She worked 3 hours Friday, 4 hours Saturday, and more hours Sunday. She earned $77.00 for the weekend. How many hours did she do yard work on Sunday?
Answers
Answer: 4 hours
Step-by-step explanation:
$77.00 divided by $7.00 = 11 hours
11 hours- 3 hours (Friday)- 4 hours (Saturday)= 4 hours on Sunday
A total of 7 hours worked on Fri. and Sat.
Answer:
Caitlin worked 4 hours on Sunday.
Step-by-step explanation:
The answer is 4 hours because 7.00 multiplied by 7 (Because 3 + 4 = 7) is 49.00 and 77.00 minus 49.00 = 28.00 and since 1 hour = 7.00 and 7.00 multiplied by 4 is 28.00 then the answer must be 4 hours.
P.S Can I have brainliest?
Chad is renting a moving van for one day. It costs $20 to rent the van for the day. It also costs $0.60 for each mile the van is driven. Chad uses this model to find the total cost for driving m miles: initial cost + cost for one mile × number of miles Which expression can be used to find the total cost of renting the van?
Answers
Answer:
20 + 0.6x
Step-by-step explanation:
Answer:
B (20 + 0.60m)
Step-by-step explanation:
Which function has a greater rate of change? Function 1 Function 2 X-1 -2 -3 2 3 y 3 5 7-3-5 A) Function 1 B) Function 2 C) Neither, they are equal D) Neither, one is nonlinear ОА OB ОС
Answers
Answer:
Step-by-step explanation:
Write a situation in which positive and negative numbers are used to describe values that have opposite meaning. What does 0 represent in this situation you created?
plz help me asap i need this
Answers
Answer:
67
Step-by-step explanation:
What are the solutions of (x - 3)(2x + 4) = 0
Answers
Step-by-step explanation:
(x - 3 ) (2x + 4) = 0
Either
x - 3 = 0
Therefore x = 3
Or.,
2x + 4 = 0
2x = - 4
x = - 4 /2
Therefore x = -2
Now the value of x is 3 or - 2.
Hope it will help :)♥
Answer:
x = 3 & x = -2
Step-by-step explanation:
(x-3) = 0 so x = 3
(2x+4) = 0 so 2x = -4 x = -2
11. The distance between two houses in a neighborhood is 12 meters. There are approximately 4 meters in 13 feet. Which measurement, in feet, is closest to the distance between the two houses?
Answers
Answer:
The closest distance between the houses in feet is 39 feet
Step-by-step explanation:
Distance between the houses in metres is 12 metres.
Essentially, the problem is asking us to convert this distance to feet using the scale ratio that we are given.
The scale ratio is
4 meters = 13 feet.
1 meter = x feet
by cross multiplying, we have that x = 13/4 feet
We now know how long 1 meter is in feet using the scale we were given
We can now convert the 12 meters to feet.
1 meter = 13/4 feet
12 meters = x feet
[tex]x = 12 \times 13/4=39 feet[/tex]
Therefore, the closest distance between the houses in feet is 39 feet
Evaluate the expression when x-6
5x + 3
———-
3
Please explain too! I will give Brainiest
Answers
HELP I NEED HELP ASAP
Answers
Elena’s work is correct
Explanation:
For the first step they were using distributive property. 4 times x would be 4x, 4 times -2 would be -8 so the first step is correct. The second step we added 8 on both sides which left us with a result of 4x=24. The final step both sides are divided by 4 which means x=6.
Hope this helps!!
Answer: her step is correct because she followed the right steps
Step-by-step explanation:
4(x-2) = 16
She first distributed
4x - 8 = 16
+8. +8
Then she add 8 to both side
4x = 24
- -
4. 4
Then she divided both side by 4 to find the value of x
X = 6
least common multiple of 9, 12, 18
Answers
Answer:
36
Step-by-step explanation:
Answer:
36
Step-by-step explanation:
158, 155,152,...
Find the 34th term.
Answers
Answer:
56
Step-by-step explanation:
158 - ( 3 * 34) = 56
pls hellppp
ABCD~EFGH find X
Answers
Answer: x = 3.6 Thats the answer.
What is the answer to this problem step by step (3+2)^2×7)-13+5^2?
Answers
Answer:
187
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
(3 + 2)² × 7 - 13 + 5²
Step 2: Evaluate
(Parenthesis) Add: 5² × 7 - 13 + 5²Exponents: 25 × 7 - 13 + 25Multiply: 175 - 13 + 25Subtract: 162 + 25Add: 187Which graph represents all the real numbers , x, where x <_ -1
Answers
Answer:
BStep-by-step explanation:
it's the answerhope this helpsThe graph of the inequality is the second graph.
Which graph represents all the numbers x ≤ -1?The graph will be a number line, such that we have a closed circle at x = -1, and we shade the region to the left (because x must be smaller than -1).
By looking at the possible options, we can see that the number line that meets this condition is the second one, the graph on the upper right corner.
That is the graph of the inequality: x ≤ -1.
If you want to learn more about inequalities:
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The diagram below shows parallelogram ABCD with diagonals AC and BD intersecting at E
What additional Information is sufficient to prove that parallelogram ABCD is also a rhombus?
Answers
9514 1404 393
Answer:
D. AC ⊥ BD
Step-by-step explanation:
Given that ABCD is a parallelogram, we already know A (BD bisects AC) and B (AB ║ CD). Statement C (AC ≅ BD) will not be true for a parallelogram or rhombus.
Statement D (AC ⊥ BD) guarantees the parallelogram is a rhombus.