Answer:
14.15232
Step-by-step explanation:
HOPE IT HELPS YOU PLEASE MARK AS BRAINLIESTPlease help me thank you! <3!
I really need help :/
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question:
1. Use the Pythagorean theorem to find AD.
2. Find AC. Show your work.
3. Is ΔABC a right triangle? Explain.
SHOW YOUR WORK
Problem 1
Answer: AD = 9
-------------------------------------------------
Work Shown:
Focus on triangle ADB, which is the smaller triangle on the left.
We have these side lengths
AD = unknown leg
BD = 12 = known leg
AB = 15 = known hypotenuse
Let's apply the Pythagorean Theorem to find the unknown leg
a^2 + b^2 = c^2
(AD)^2 + (BD)^2 = (AB)^2
(AD)^2 + (12)^2 = (15)^2
(AD)^2 + 144 = 225
(AD)^2 = 225-144
(AD)^2 = 81
AD = sqrt(81)
AD = 9
Side AD is 9 units long.
========================================================
Problem 2
Answer: AC = 25
-------------------------------------------------
Work Shown:
AC = AD + DC .... segment addition postulate
AC = 9 + 16 ..... substitution; refer to problem 1
AC = 25
========================================================
Problem 3
Answer: Triangle ABC is a right triangle.
-------------------------------------------------
Work Shown:
The Pythagorean Theorem Converse says "if a^2+b^2 = c^2 is a true equation, then the triangle with sides a,b,c is a right triangle". Keep in mind that c is always the longest side (hypotenuse). The order of 'a' and b doesn't matter. Convention has us usually do [tex]a \le b[/tex] but again the order isn't important.
We have these three sides
a = 15 (length of side AB; leg #1)b = 20 (length of BC; leg #2)c = 25 (length of AC; hypotenuse)Plug those values into the equation below. Simplify each side.
a^2+b^2 = c^2
15^2 + 20^2 = 25^2
225 + 400 = 625
625 = 625
We get a true equation. Therefore, triangle ABC is a right triangle.
Answer:
Step-by-step explanation:
Pythagorean = c^2 =a^2 + b^2
we are given c and a so solve for b
c^-a^2 = b^2
15^2- 12^ = b^2
81= b^2
[tex]\sqrt{81}[/tex]=b
9=b
AD=b
AC = AD + 16
AC =9 + 16 =25
if it's a right triangle then Pythagorean will work with the sides to make 25
AC^2 = 15^2+20^2
AC = [tex]\sqrt{625}[/tex]
AC = 25
The spinner is spun 480 times. What is a reasonable prediction of it landing on a number greater than 5?
Answer:
Step-by-step explanation:
3!!!!!!!!!!!!!! REEEEEEEEEEEEE
On Saturday, Stan was paid $49.50 for washing 9 cars. On Sunday, he was paid $33 for washing 6 cars. How much is Stan paid to wash 1 car?
The dot plot shows predictions for the winning time in the 200-meter sprint. The winner finished the race in 22.3 seconds. What is the greatest percent error among the predictions?
Answer:
3.2%
Step-by-step explanation:
The required greatest percent error among the predictions is 1.773% (Approximately 1.8%).
Step-by-step explanation:Given that,
The dot plot shows predictions for the winning time in the 200-meter sprint.
The winner finished the race in 22.5 seconds.
We have to determine,
What is the greatest percent error among the predictions.
According to the question,
The true finishing time is 22.5 seconds.
The prediction furthest from this is 22.9 seconds.
This is a difference of 22.9 - 22.5 = 0.4 seconds.
Divide this over the true time value to get prediction,
0.4/22.5 = 0.0177 = 1.77 (Approximately)
Move the decimal point to the right 2 spots to get to 1.773% (Approximately 1.8%).
Hence, The required greatest percent error among the predictions is 1.773% (Approximately 1.8%).
Hope my answer helps you.
:)
Please mark my answer as the BRAINLIEST. Plssssssssssssssssssss
The intersection of parallel lines b and c and transversal line d form several special angle relationships, as shown in the image below.
Which of the following pairs of angles are supplementary? Select all that apply.
∠1 and ∠4
∠5 and ∠6
∠2 and ∠8
∠3 and ∠6
Answer:
your awnser would be 5 and 6 and 2 and 8
Step-by-step explanation:
hope this helps
can some one help me i have no idea what this is
Answer:
b=-25
Step-by-step explanation:
10= -2/5b
10= -2/5b
------ -------
-2/5 -2/5b
b=-25
Check:
-2/5(-25)=10
10=10
Answer:
b=-25
Step-by-step explanation:
lexi bought 1 2\5 pounds of green grapes and 2 3\10 pounds of red grapes. Grapes are 2.99 a pound. Did lexi spend more or less than $12 on grapes? please explain asap
Answer:
Less than $12
Step-by-step explanation:
I changed everything into decimals to make it easier to solve:
1 2/5= 1.4
2 3/10= 2.3
1.4+2.3=3.7
2.99·3.7=11.063 (Round it to the nearest hundredth and you get 11.06)
Find the area of each shaded region please help i just need help with C and D
Answer:
78
Step-by-step explanation:
i need some help plss with this math
Answer:
0
Step-by-step explanation:
If you look at -3 the other end is 0 so the answer is 0.
Answer:
y=3
Step-by-step explanation:
the equation is 3x + 2y = -6, so we can plug in the x value -4.
doing this we get -12 + 2y = -6
now we just solve the equation for y.
2y=-6+12
2y=6
y=3
Which graph shows a proportional relationship between the number of hours of renting a lawn mower and the total amount spent to rent the lawn mower?
Answer:
1
Step-by-step explanation:
the 1 one
Write an expression for the sequence of operations described below.
add 3 to 6, then multiply the result by 5
Type x if you want to use a multiplication sign. Do not simplify any part of the expression.
help me por favor
Answer: (3+6)x5
Step-by-step explanation: It wants you to add first so put parentheses around 3+6 and then multiply by 5.
The expression for the sequence of operations would be; (3 + 6 ) x 5.
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division. The Numbers constants, variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbol.
Given that the phrase "add 3 to 6, then multiply the result by 5"
Then first add 3 and 6 = 3 + 6
To indicate the multiplication sign we will use x.
Now multiply the result by 5;
(3 + 6 ) x 5
Hence, the expression for the sequence of operations would be; (3 + 6 ) x 5.
To know more about an expression follow the;
brainly.com/question/19876186
#SPJ2
will give brainiest to the person give a good answer
Answer:
1=7
2=4
3= -12
4=5
5= -1
6= -1
7= -7
8=4
Three sets of a sum of a number and four are added to the sum of seventimes the same number and thirteen.
4,902 × 0.001 is the same as 4,902 ÷ 10 to the power of 3
True or False?
Answer:
False
Step-by-step explanation:
4902x0.001 = 4.902
4902/10 = 490.2
490.2^3 does not equal 4.902
PLS help me with my math.
Answer: A
Step-by-step explanation: You have so much tabs open
What is wrong with this equation 7/9-8/9=1/9
Answer:
the answer would be -1/9
because you're subtracting 8/9 from 7/9, not the other way around.
Step-by-step explanation:
Answer:
see below
Step-by-step explanation:
7/9-8/9=1/9
We have a common denominator
( 7-8) 1
--------- = ----
9 9
7 -8 is equal to -1 not 1
The answer should be -1/9 not 1/9
A 12,000-gallon pool is being filled at a rate of 40 gallons per minute. At this rate, how many minutes will it take to fill the pool 3/4 full?
Answer:
It would take 225 minutes to fill up 3/4 of the pool
Step-by-step explanation:
Can the exponent in the denominator be subtracted from the exponent in the numerator when the based are different? Explain
Answer:
If the higher power is in the denominator, put the difference in the denominator and vice versa, this will help avoid negative exponents and a repeat of step 3. Step 6: Raise each coefficient (or number) to the appropriate power and then simplify or reduce any remaining fractions. Step 1: Apply the Zero-Exponent Rule.
Answer:no
Step-by-step explanation:
Because u can not subtract a denominator from numerator u must subtract the denominator by the denominator
Simplify using the Laws of Exponents
not hard :]
but i cant do it XD
Answer:
j11
Step-by-step explanation:
Can someone help me ASAP! Ill give you brainliest!
Im horrible in this skill, and it has to be correct :-)
Plz and thank you!
one stone on easter island is 12 meters high. the nose of the statue is 3.3 meters long. If the proportional statue is only 10 meters high. How long will the nose be? write your answer in a decimal
Answer:
The nose will 2.75 meters long.
Step-by-step explanation:
Answer: 2.5 meters long
HELPPP!!!
Evaluate the expression.
Simplify 8(x - 4).
8x - 4
x - 32
8x - 32
x - 4
Answer:
Correct answer is 8x-32
Step-by-step explanation:
prove me wrong
Answer:
C. 8x32
Step-by-step explanation:
heeeeeeelp meeee.......... pleassssssssseeeeeeeeeeeeeee............
Adam wants to buy a $35 shirt. He has $9. After two weeks of saving, he has $15. Three weeks after that, he has $24. If Adam saves money at a constant rate, will he have enough to buy the shirt after 8 weeks? Solve the problem by making a table and then making a graph...
Answer:60
Step-by-step explanation:
By what percent will a fraction change if its numerator is decreased by 20% and it denominator is decreased by 60%?
Answer:
It increased by 100%
Ishaan is 222 times as old as Christopher. 353535 years ago, Ishaan was 777 times as old as Christopher.
Answer: I'd say 10 but I'm not that good at math.
Step-by-step explanation: 2 x 35 = 70, 70 / 7 = 10.
My other way of doing it: 7 / 35 = 5, 5 x 2 = 10
A school club sold 300 shirts. 31% were sold to fifth graders, 52% were sold to sixth graders, and the rest were sold to teachers. How many shirts were sold to each group-fifth graders, 6th graders, and teachers? Explain or show your reasoning. Please help I'm late on turning in homework!
Answer:
5th graders = 93 people 6th graders = 156 teachers = 51
Step-by-step explanation:
93 5th graders bought shirts, 156 6th graders bought shirts, 51 teachers bought shirts
HElp ALL MY POINTS !!!!
Answer:
the correct answer is C
Answer:
c
Step-by-step explanation:
the numbers inside the parenthesis are just flipped :)
Which statement compares the two numbers correctly?
0.799 ________ 0.8
0.799 > 0.8
0.799 = 0.8
0.799 < 0.8
0.8 < 0.799
Answer: 0.8 <0.799
Step-by-step explanation:
Just did the same quiz
i need help with my math.
Answer:
not clear please
it must be clear so
l can answer
