Answer:
-157
Step-by-step explanation:
25+(-13×14)=-157
how to do this question plz answer my question
If CosA= sqrt 3/2, what is TanA?
Answer:
√(3)/3
Step-by-step explanation:
cos(A) = adj./hyp.
adj. = √(3) or √(3)/2
hyp. = 2 or 1
use unit circle:
hyp. = 1
adj. = √(3)/2
use pythagorean theorem c² - b² = a²
1² - (√(3)/2)² = 1 - 0.75 = 0.25
a² = 0.25
a = √(0.25)
a = 0.5
tan(A) = opp./adj.
tan(A) = 0.5/(√(3)/2)
tan(A) = 1/√(3)
rationalize
tan(A) = √(3)/3
kit
Topic 8 Test
Find the value of x to the nearest tenth.
7
46°
X
20
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Exponential growth means that b is ___.
A. > 1
B. None of these
C. < 1
D. = 1
Step-by-step explanation:
b > 1 is growth. decay would be less than 1
The exponential growth the term b>1
What is exponential growth?But sometimes things can grow (or the opposite: decay) exponentially, at least for a while.
So we have a generally useful formula:
y(t) = a × ekt
Where y(t) = value at time "t"
a = value at the start
k = rate of growth (when >0) or decay (when <0)
t = time
for example,
Example: 2 months ago you had 3 mice, you now have 18. What is the "k" value? How many mice 2 Months from now? How many mice 1 Year from now?
Start with the formula:
y(t) = a × ekt
We know a=3 mice, t=2 months, and right now y(2)=18 mice:
18 = 3 × e2k
Now some algebra to solve for k:
Divide both sides by 3: 6 = e2k
Take the natural logarithm of both sides: ln(6) = ln(e2k)
ln(ex)=x, so: ln(6) = 2k
Swap sides: 2k = ln(6)
Divide by 2: k = ln(6)/2
Notes:
The step where we used ln(ex)=x is explained at Exponents and Logarithms.
we could calculate k ≈ 0.896, but it is best to keep it as k = ln(6)/2 until we do our final calculations.
We can now put k = ln(6)/2 into our formula from before:
y(t) = 3 e(ln(6)/2)t
Now let's calculate the population in 2 more months (at t=4 months):
y(4) = 3 e(ln(6)/2)×4 = 108
And in 1 year from now (t=14 months):
y(14) = 3 e(ln(6)/2)×14 = 839,808
As, per the formula for exponential growth the factor b will tells whether there is exponential growth or decay.
so, when b>1 then it is exponential growth and b<1 shows decays.
Learn more about exponential growth here:
https://brainly.com/question/11487261
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Find the value of x. Please help :(
Answer:
x=100, hope this helped.
Which is a better estimate for the volume of a shoebox? 5) 4 liters 4 milliliter
Answer:
4 liters
Step-by-step explanation:
I need help please !!
Answer:
21
Step-by-step explanation:
add both and make it equal to 180
9x-9=189
x=21
HELP ME ! A fair coin is tossed three times in succession. The sample space is shown, where H represents a head and T represents a tail. Find the probability of getting exactly zero tails.
Answer:
0.125
Step-by-step explanation:
For a fair coin, H and T is the same probability. To get zero tails, we need to toss a head, then a head, and again a head - each time we succeed with probability of 0.5, so succeeding 3 times happens 0.5^3 of the time = 0.125
Alternatively, look at all the options:
HHH
HHT
HTH
HTT
THH
THT
TTH
TTT
Only one option has no tails, and because the coin is fair, each option is equally probable, so the probability of HHH is 1/8 = 0.125
The image shows the angles formed by a pair of scissors. When the scissors are closed, m∠1 = 0°. As the scissors are opened, the measures of all four angles change in relation to each other.
Describe how the measures change as m∠1 increases from 0° to 180°.
Angle 3 is a vertical angle of angle 1 and will always be identical to what angle 1 is.
Angle 2 and angle 4 are supplementary angles to angle 1 and will always be the difference between 180 and what angle 1 is.
For example if angle 1 was 45 degrees, angle 3 would also be 45 degrees and angle 2 and angle 4 would be 180-45 = 135 degrees.
What is the area of this triangle?
h = 5 in.
b = 6 in.
Answer:
15 in.
Step-by-step explanation
AREA OF A TRIANGLE= B X H / 2
6 X 5=30
30/2=15
High Points!!!
Which of the following tables best represents the relationship between p and f in the equation p = 3.5f?
Answer:
A
Step-by-step explanation:
Please help me ASAP with this math problem
Answer:
Root( c square -9)
Step-by-step explanation:
The answer u have is the answer for a^2
Answer:
Root (c square -9)
Step-by-step explanation:
A cell phone company expects that every 2 out of 25 cell phones will have some formof defect. At this rate, how many cell phones out of 500 will be expected to have a defect?
Answer: 40 phones
Step-by-step explanation:
The company expects that every 2 out of 25 phones will have some form of defect.
In percentage terms, this is:
= 2 / 25 * 100%
= 8%
If there are 500 phones therefore, the defected phones would still be the same percentage and the actual number would be:
= 8 % * 500
= 40 phones
Why did the United States attack Afghanistan in 2001?
Afghanistan had invaded Kuwait for its oil.
Osama bin Laden, aided by the Taliban, hid in Afghanistan after the 9/11 attacks.
Intelligence reports proved that Afghanistan was planning an attack on the United States.
The leaders of Afghanistan refused to allow the United States access to its military bases.
Answer:
The answer is: Osama bin Laden, aided by the Taliban, hid in Afghanistan after the 9/11.
Step-by-step explanation:
I took the test :)
Answer:
These are for the whole test. the first answer is everything but,Saddam Hussein and Iraq assisted al Qaeda in the terrorist attacks.
The second answer is all but, Members of al Qaeda believe they will be punished by God if they take the lives of non-Muslims.
and the answer to the final question is
Osama bin Laden, aided by the Taliban, hid in Afghanistan after the 9/11 attacks.
Mark me brainiest please and this is for K12
Find the point of intersection of the lines:
y = 4x + 1 and y = - 2x + 4
Answer:
(0.5, 3)
Step-by-step explanation:
i used desmos
Tom earns $36 a week mowing lawns. He spends 1/6 of his earnings on lunch and 1/3 of his earnings on music. He saves the rest. How many dollars does Tom save? Tell how you found the answer.
Answer:
$18
Step-by-step explanation:
spent = 1/6 + 1/3 = 1/2
1/2 x 36 = $18
Answer :_
18$
●●●●●●●●●●●
100
o
o7
9
In a sale everything is reduced by 15%.
A week later the prices are reduced by another 20%.
The shopkeeper says that all the prices have been reduced by 35%.
5
Show that the
shopkeeper is wrong. Reduce b
educe by ist
by !5
Austin got a raise. Their hourly wage was increased from $18.00 to $20.50. What was the percent increase in Austin’s wage to the nearest whole percent?
- option 1) 10%
- option 2) 12%
- option 3) 14%
- option 4) 250%
Explain the steps you did to get your anwser
[ URGENT PLEASE HELP!!!!! || BRAINLEST WILL BE AWARDED AND ILL ANWSER YOUR QUESTIONS ]
Answer:
option 3)
14% approx
Step-by-step explanation:
Given data
Initial= $18.00
final =$20.50
% increase= final - initial/initia *100
% increase= 20.50-18.0/18*100
% increase=2.5/18*100
% increase=0.138*100
% increase=13.8%
Hence the increase is 13.8%
=14% approx
I NEED HELP ASAP PLEASE What is the area of this trapezoid? Enter your answer in the box.
Answer:
A=153
Step-by-step explanation:
Small Base - a=10
Small Base - b=10+7+7=24
Height - h=9
[tex]A=\frac{a+b}{2} h=\frac{9(10+24)}{2}=153[/tex]
write the following angle measures in radians 165 degrees
Math help What are the solutions
Answer:
x² - 4x + 12
Step-by-step explanation:
x=2+2.82843i
x=2−2.82843i
You deposit $2500 in an account that pays 3% annual interest compounded continuously. What is the balance in your account after 4 years?
Answer:
A≈$2819
Step-by-step explanation:
In this case P=$2500, r=3%, t=4
Hey, I need to find the vertex and show work. The equation is down below and photo:
y = x^2 + 4x - 7
The number for the question is 14
Answer:
this answer for this question
y=833
Answer:
y = x^2 + 4x - 7
y=833
Step-by-step explanation:
brainliest?
if 20% of a number is 386, what will be 30% of the same number
if the 20% of a number is 386, what will be 30% of the same number
Answer will be 157
If 20% of a number is 386, 30% of the same number is 579
How to determne the number?Let the number be x.
So,we have:
20% * x = 386
Express 20% as 0.20
0.20 * x = 386
Divide both sides by 0.20
x = 1930
30% of the number is represented as:
30% * 1930
Evaluate the product
30% * 1930 = 579
Hence, 30% of the same number is 579
Read more about percentage at:
https://brainly.com/question/11360390
the relationship between the number of pounds (Ib) of cheese and the total cost in dollars is shown the graph. what is the unit price of cheese?
(PLEASE HELP!!1!!11!!)
Answer:D
Step-by-step explanation:
Because the rate of change is 6, and D shows us 6/1 which equals 6.
Which simple machine turns about a fixed point called a fulcrum?
Answer:
Lever turns about a fixed point called a fulcrum.
Step-by-step explanation:
hope it helps..
Answer:
lever
Step-by-step explanation:
What did the magician do when he lost his temper?
Answer:
He pulled out his hare
Step-by-step explanation:
answer the questions correctly and put them in order
Evaluate the expression when a = -3. a^2 +6a +8
If your able to help me please do, really need to finish this
Answer:
It is growth if the number in the parenthesis is greater than 1.
It is decay if the number in the parenthesis is less than 1.
For example y = 300[tex](2)^{x}[/tex] is growth and [tex]y = 100(.5)^{x}[/tex] is decay
Step-by-step explanation:
Name 25% in 3 different ways
Answer:
1/4 , .25 , twenty five percent.
Step-by-step explanation:
Answer: 1/4 0.25 2 out of 8
Step-by-step explanation: