Which three of these number add up to 180, 128 90 34 80 56
Answers
The three numbers which add up to 180 are 90, 34 and 56.
To find the sum of three numbers as 180, we simply add the three numbers together.
In this case, the numbers are given as 128, 90, 34, 80 and 56;
We see that the three numbers whose sum is 180 are 90, 34 and 56,
Let 90 represents one quantity, 34 represents another quantity, and 56 represents yet another quantity.
When we add these three quantities together, we get the total sum of all three quantities, which is 180.
Therefore, the numbers 90, 34 and 56 adds up to 180.
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The given question is incomplete, the complete question is
Which three of these number add up to 180? 128, 90, 34, 80, 56.
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Answers
Answer:
2108
Step-by-step explanation:
First find the hours between 9 am and 5 pm
8 hours
This is at her regular rate of 136
8*136 = 1088
Then between 5 pm and 10 pm = 5 hours
This is at 1.5 her regular rate 1.5*136 =204
5 *204 =1020
1088+1020 = 2108
$136 x 1.5 = $204 ( 5pm - 11 pm)
9-5pm = 8 hrs
5-10 = 5 hrs
(136 x 8) + (204 x 5)
$1088 + $1020
= $2108
Answers
10x * 4=40x
Answers
Answer:
THERE YA GO BUDDY!!
Step-by-step explanation:
To work out the probability that both randomly chosen students have only visited Mexico, we need to consider the number of students who have visited Mexico and subtract those who have also visited other countries.
From the given information:
- 11 students have visited Canada
- 2 students have visited Canada and Mexico (but not the USA)
- 3 students have visited Mexico and the USA
- 1 student has visited all three countries
- 6 out of the 19 students who have visited the USA have also visited at least one of the other countries.
We can calculate the number of students who have only visited Mexico as follows:
Total students who have visited Mexico = Total students who have visited Mexico and the USA - Students who have visited all three countries - Students who have visited Canada and Mexico (but not the USA)
= 3 - 1 - 2
= 0
Since there are no students who have only visited Mexico, the probability that both randomly chosen students have only visited Mexico is 0.
Answers
Answer:
The height of the object as a function of time is given by:
.....[1]
where,
h(t) is the height of the object t second after it is thrown.
v is the initial velocity
h is the initial height.
As per the statement:
Ted throws an object into the air with an initial vertical velocity of 54 feet per second from a platform that is 40 feet above the ground
⇒v = 54 ft/sec and h = 40 feet above the ground.
Substitute in [1] we have;
we have to find how long will it take the object to hit the ground.
Substitute h(t) = 0
then;
⇒
Factorize this equation:
⇒
⇒
By zero product property we have;
t-4 = 0 and -8t-5 = 0
⇒t = 4 and -8t = 5
⇒ t= 4 and t = - 0.625
Since, time cannot be in negative;
⇒ t= 4 sec
therefore, 4 seconds will it take the object to hit the ground
PERFECT application of the general equation of things
that are moving up and down in gravity:
H(t) = H₀ + v₀t + 1/2 g t²
t = time after the toss
H(t) = height at any time after the toss
H₀ = height from which it's tossed
v₀ = initial speed
g = acceleration of gravity
I'm going to call 'UP' = the positive direction .
So ...
H₀ = +40 ft
v₀ = +54 ft/sec
g = -32 ft/sec²
When the object hits the ground, H(t) = 0 .
So you have ...
0 = 40 + 54 t - 16 t²
Let me re-write that for you, to make it a
little easier and more familiar:
- 16 t² + 54 t + 40 = 0
Divide each side by -2 : 8 t² - 27 t - 20 = 0
Now go to your toolbox, pull out your quadratic formula,
solve that quadratic equation, and you'll get the usual two
solutions.
The positive one is the one you want.
The negative one refers to time before the toss, and may be discarded.
Answers
2) tan -30 degrees
3) cot (-pi)
Show your work.
This is from trigonometry or Algebra 2.
Please don't answer if you don't know it.
Answers
tan -30 is the same as tan 330, which is -
cot -π = 1 / tan π, which is 1 / 0, and you can't divide by 0, so cot -π is undefined