Hello!
Please only answer if you know the answer, the comment section is right below. Please don't waste my points!
Also, please show all of your work, you are trying to help me better understand the concept, not just give me the answer.
The image is down below. Show work! Thanks!
Answers
Answer:
7.71 km²Step-by-step explanation:
Area of triangle:
A = 1/2bhWe have the value of b but not h.
Added auxiliary segments which help to find the value of h.
See attached for details
sin 40° = h/4h = 4 sin 40°h = 2.57 kmThe area is:
A = 1/2*6*2.57 = 7.71 km²
Related Questions
I Need help with these please
Answers
9514 1404 393
Answer:
5. (d) 8
6. (c) 120°
Step-by-step explanation:
5. OC is a radius, just like BO is. The angle at B is a right angle, so the Pythagorean theorem can be used to find BO.
AO² = BO² +BA²
BO² = AO² -BA² = 17² -15² = 289 -225 = 64
BO = CO = √64 = 8
__
6. The measure of arc IK is the same as the measure of the central angle. If we name the circle center X, then arc IK = ∠IXK = ∠HXL because those angles are vertical angles.
arc IK = 120°
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately
σ=36.6. You would like to be 90% confident that your esimate is within 4 of the true population mean. How large of a sample size is required?
Answers
Answer:
Hmmmmm
Step-by-step explanation:
A quarter falls off a building that is 144
feet tall. If the equation for height as a
function of time is
h(t) = -16t2 + initial height where t is
time in seconds and h(t) is height in
feet, how many seconds will it take for
the quarter to hit the ground?
Answers
Answer:
3 seconds
Step-by-step explanation:
Initial height = 144 feet
t = Time taken
The equation of the height from the ground is
[tex]h(t)=-16t^2+\text{Initial height}[/tex]
The time taken to reach the ground is needed. Here the ground is taken as reference so [tex]h(t)=0[/tex]
[tex]0=-16t^2+144\\\Rightarrow -144=-16t^2\\\Rightarrow t=\sqrt{\dfrac{144}{16}}\\\Rightarrow t=3\ \text{s}[/tex]
So, time taken by the quarter to reach the ground is 3 seconds.
Beth has saved 60$ for a gaming system.This is 30% of the total amount she needs for gaming system.how much does the new gaming system cost?
Answers
Answer:
$200
Step-by-step explanation:
30% = $60
divide both sides of the equation by 3:
10% = $20
multiply both sides by 10:
100% = $200
Points and Brainliest Giveaway!! (Btw, you still have to answer the question)
If x = 4, and y = 8.
3x + 2y = 7x + 4y
Is the expression true?
Answers
Answer:
Step-by-step explanation:
3(4)+2(8)=7(4)+4(8)
12+16=28+32
28=60
Therefore, the expression is not true because they are not equal to each other
Please mark answer as brainliest
Answer:
3(4) + 2(8) = 7(4)+ 4(8)
12+16= 28+32
28 =60
No, the expression is not true
Help me asapppppp!!!!!
Answers
Answer:
A or D because those are pairs
Step-by-step explanation:
Sorry if I'm wrong
Please help me with number 6
Answers
Annie has two jobs. She gets paid $13.04 per hour for tutoring at City College and $9.75 per hour at a coffee shop. Last week she tutored for 7 hours and worked at the coffee shop for 15 hours.
(a)
How much did she earn (in dollars)?
$
Correct: Your answer is correct.
(b)
If she had worked all hours as a tutor instead of working both jobs, how much more would she have earned (in dollars)?
$
Answers
Answer:
ahow much did she earn(in dollars)
Answer:
(a) 13.04 x 7 = 91.28
9.75 x 15 = 146.25
91.28 + 146.25 =237.53
(b) 7 + 15 = 22
13.04 x 22 =286.88
Step-by-step explanation:
she earned 237.53
If she had worked all hours as a tutor instead of working both jobs, she would have made 286.88
Students sell 80% of the books at a book sale. They sell 48 books in all. How many books are at the book sale?
Answers
Answer:
60 books
Step-by-step explanation:
80% x X = 48
.8x = 48
x = 48 / .8
x = 60
Hope that helps!
Answer:
60 books good luck. hope you do good
OMGG PLEASE HELP! GIVING BRANILEST!! I need ASAP!! THIS DUE IN LIKE 2 MINUTES
Answers
Answer:
28.33
(Ignore these words)
What is the common denominator of 1 4
Answers
Find the unit rate: $1.98 for 3 pounds
Answers
Answer:
$0.66 or 66 cents
Step-by-step explanation:
[tex]\frac{1.98}{3} =0.66[/tex]
help me please I need help
Answers
Answer:
DO NOT GO ON THST LINK< IT WILL SEND A VIRUS TO YOUR DEVICE!!!
Step-by-step explanation:
Plz help iff correct ill give Brainlyest
Answers
[tex]x-5\leq 12[/tex]
You add 5 to each side
[tex]x\leq 17[/tex]
This inequality will be correct if x is less than or equal to 17. Meaning any number less than 17 and including 17 will make the equation correct. For this reason you pick the one with a filled circle. The answer is H
(d) Chris chooses a card at random, replaces it, then chooses a
cards she chooses has the letter M printed on it.
(e) Graham chooses a card at random and does not replace it. He continues until he chooses a card with the letter M
printed on it. Find the probability that this happens when he chooses the 3rd card.
Question 2
Percy throws a fair dice until he gets a five.
...
:
20
(a) Work out the probability that Percy gets the five on his first throw.
(b) Find the probability that he has to throw the dice exactly twice to get the five.
(c) Calculate the probability that he will have the throw the dice more than twice to get a five.
Answers
Answer:
Step-by-step explanation:
I'm assuming you have 26 cards each with a different letter on it.
(d) Prob(Not M, Not M , M)
= 25/26 * 25*26 * 1/26
= 625/17576
or 0.036 to nearest thousand
(e) Prob(Not M, Not M, M) without replacement
= 25/26*24/25*/1/24
= 1/26
or 0.038 to nearest thousandth.
2(a)
1/6.
(b)
5/6 * 1/6
= 5/36.
(c)
5/6 * 5/6
= 25/36
What is
0.8×10⁴=
0.8×(10×4)=32.00.8×(10×4)=32.0
0.8×(10+10+10+10+10)=32.00.8×(10+10+10+10+10)=32.0
0.8×(10×10×10×10)=80,0000.8×(10×10×10×10)=80,000
0.8×(10×10×10×10)=8,0000.8×(10×10×10×10)=8,000
Answers
Answer:
8000 is the answer.
Step-by-step explanation:
0.8 x 10⁴ = 8000
8000 is ya answer sir
Marc and Anthony are pulling weeds. The can pull 25 weeds every three minutes. How many weeds can they pull in 15 minutes?
Answers
Answer:
125 weeds in 15 mins
Step-by-step explanation:
Given that ABCD ~ EFGH, find the value of x
Answers
Answer:
x = 8
Step-by-step explanation:
Recall: Ratio of the corresponding side lengths of two similar figures are equal.
Therefore,
EF/AB = GH/CD
6/4 = 12/x
Cross multiply
6*x = 12*4
6x = 48
Divide both sides by 6
6x/6 = 48/6
x = 8
What is the area of a square if the half of the diagonal is 6
Answers
Answer:
72
Step-by-step explanation:
Cut the square into two equal triangles along the diagonal
You know that half of the diagonal is 6 so multiply that by 2 to get 12 which is the hypotenuse of your triangles
Then use the pythagorean theorem to solve for the sides
a^2 + b^2 = 12^2
a^2 + b^2 = 144
Since the original shape was a square both sides a and b are equal
a^2 = b^2
a^2 + a^2 = 144
2a^2 = 144
a^2 = 144/2
a^2 = 72
a = [tex]\sqrt{72}[/tex]
Since a = b then a = [tex]\sqrt{72}[/tex] =b
Multiply both sides a and b to get the area of the square
[tex]\sqrt{72}[/tex] * [tex]\sqrt{72}[/tex] = 72
Potatoes cost 1.20 euros per kilogram work out the cost of 5 kilograms of potatoes
Answers
Answer:
Step-by-step explanation:
cost for 1 kg potatoes = 1.20 euros
Cost of 5 kilograms of potatoes
= 5 * 1.20 euros
= 6 euro
Hope it helps :)
Can someone help me? I’ll reward points + brainalist
Answers
Answer:
B
Step-by-step explanation:
Since the only difference in the aquariums is the length, you can find the difference by multiplying the difference in length with the rest of the dimensions.
Difference in length = 4ft - 3ft
= 1ft
Difference in volume = 1ft × 2ft × 1ft
= 2ft³
In a study of the accuracy of fast food drive-through orders, Restaurant A had 342 accurate orders and 55 that were not accurate. a. Construct a 95% confidence interval estimate of the percentage of orders that are not accurate. b. Compare the results from part (a) to this 95% confidence interval for the percentage of orders that are not accurate at Restaurant B: 0.125
Answers
Answer:
woah mcdonal
Step-by-step explanation:
how peculiar
Can anybody please help me please
Answers
Answer:
-8 > -10
Step-by-step explanation:
-8 is greater than -10.
Answer:
[tex] \huge \boxed{ \boxed{ - 8 > - 10}}[/tex]
Step-by-step explanation:
in case of negative numbers the numbers which are big are the small and vise versa-2x(x+3)-(x+1)(x-2)=
Answers
Answer:
[tex]-3x^{2}[/tex] -5x +2
Step-by-step explanation:
Just combine like terms and solve.
-2x^2+-6x - (x+1)(x-2)
Use foil on the second part
-2x^2-6x - x^2-x-2
Now combine like terms and you’d get your final answer
You inherit $10,000 and decide to invest the money in mutual funds for your 5 year old daughter's
future college expenses. After 6 years pass you decide to check on the value of your investment. You
find the balance after 6 years to be 18,000.
a) What is the growth rate in these 6 years for your investment. Round to the nearest thousandth.
b) Write an explicit equation for your investment.
c) Assuming your investment continues to grow at this rate, what is the value in 12 years?
Answers
Answer:
Thats confusing lol
Step-by-step explanation:
sprry
Plz help if correct ill give brailiest
Answers
Answer:B
Step-by-step explanation:the answers B because the closed circle is greater that or equal too, and because the inequality is greater than the arrow points to the left. B, the dot is on 7 which if we add that to 18 is 25 which is the greatest number that can work for this inequality making this answer correct.
Hope this helps you understand it!
not good at ms\ath so can you help me
Answers
Answer: 20
Step-by-step explanation:
Mean and average of numbers are calculated the same thing
To find the mean, you add up all the numbers and divide them by the number of values there are
In this case, there are 6 values
(14 + 17 + 21 + 28 + 40) / 6 =
120 / 6 =
20
What 3d shape does this
net make?
a. rectangular prism
b. triangular prism
c. triangular pyramid
d. rectangular pyramid
Answers
Answer:
B) A triangular prism
Step-by-step explanation:
Br0 yk this is easy l.o.l
I need help please!!
Answers
Answer:
3 1/4 + 4 2/5 + 6 1/2 = 14.15 hours
Step-by-step explanation:
Ellie worked 6 hours on Monday, 4.5 hours on Tuesday, 4 hours on Wednesday, 5.75 hours on Thursday, and 3 hours on Friday. If she is paid $10.18 per hour. Find her gross earnings for the week.
Answers
Answer:
⚠️DO NOT RELY ON ME⚠️ But, just by doing It in my head i think it's 236.685, but I don't really know just my thought process and mental math