Answer:
60
Step-by-step explanation:
Help!!!!!!!!!!!!!!!!!!!!!!!!!!ASAP
Jeremy ran 4 kilometers in a race. How many meters did he run?
Answer:
4000m
1k =1000m
Step-by-step explanation:
I need help
Element X is a radioactive isotope such that every 27 years, its mass decreases by half. Given that the initial mass of a sample of Element X is 7900 grams, how much of the element would remain after 12 years, to the nearest whole number?
Answer:
About 5, 805 grams remaining.
Step-by-step explanation:
We are given that every 27 years, the mass of Element X decreases by half.
We can write an exponential function to model the situation. The standard exponential function is given by:
[tex]\displaystyle f(t)=a(r)^t[/tex]
Where a is the initial amount, r is the rate, and t is the time, in this case years.
Since it is halved, our rate r is 1/2.
Since it is halved for every 27 years, for t, it will be t/27.
Therefore, our function is:
[tex]\displaystyle f(t)=a\Big(\frac{1}{2}\Big)^{t/27}[/tex]
Our initial sample is 7,900 grams. Hence, a = 7900:
[tex]\displaystyle f(t)=7900\Big(\frac{1}{2}\Big)^{t/27}[/tex]
We want to find the remaining amount after 12 years. So, t = 12. Use a calculator:
[tex]\displaystyle f(12)=7900\Big(\frac{1}{2}\Big)^{12/27}\approx5805\text{ grams}[/tex]
After 12 years, there will be about 5805 grams remaining.
Answer:
About 5, 805 grams remaining.
Step-by-step explanation:
We are given that every 27 years, the mass of Element X decreases by half.
We can write an exponential function to model the situation. The standard exponential function is given by:
→ f(t)=a(r)^t
Where a is the initial amount, r is the rate, and t is the time, in this case years.
Since it is halved, our rate r is 1/2.
Since it is halved for every 27 years, for t, it will be t/27.
Therefore, our function is:
→ f(t)=a(1/2)^t/27
Our initial sample is 7,900 grams. Hence, a = 7900:
→ f(t)=7900(1/2)^t/27
We want to find the remaining amount after 12 years. So, t = 12. Use a calculator:
→ f(12)=7900(1/2)^12/27 ≈5805 grams
After 12 years, there will be about 5805 grams remaining.
Can someone help me??
Answer:
12.8
Step-by-step explanation:
Tan 52° = x/10
x = Tan 52° * 10
x = 1.2799 × 10
x = 12.799
Rounding to the nearest tenth, we have
x = 12.8
Answer:
Step-by-step explanation:
Let's use 52 as our degree.
The adjacent side to 52 is x, and the opposite is 10.
Since it's gonna be opposite over adjacent, we need to use the Tangent ratio.
(tan)
Now let's start our calculations.
Tan52 = x/10
(Tan52)(10) = x
x = 12.79941532
Let's round that to the nearest tenth place.
x = 12.8 units
(Don't forget the degree sign for 52 in Tan52!!!)
Hope that helped! :)
Given that line segment DE is a midsegment of triangle ABC, and given that AE = 4 cm, find AC and EC. *
Solve the system by graphing. Check your solution.
y= 3x
y= - 4x + 7
0
Use the graphing tool to graph the system.
Step-by-step explanation:
the answer from the graph is:
(1 , 3)
Answer needed immediately please help!
Answer: 3
Step-by-step explanation: When you solve for x you get 2 so when you put that into the equation (2+1) you get 3. You solve for x but solving this equation (x+5) = (x+1) Hope this helps :)
Whta are the measures of angles?
Answer:
Neptune's atmosphere is composed up of many gases. These gases include Hydrogen (80%), Helium (19%), and Methane (1.5%). Some of the minor gases include trace amounts of Hydrogen Deuteride and Ethane.
Step-by-step explanation:
Answer:
So comp angles are 90 degrees so 90 times 2 would be 180 plus 10 would be 190? Um.... try that ig?
Step-by-step explanation:
Which expression is equivalent to
-4(h - 2) + 20
a. -4h + 12
b. -4h + 18
c. -4h + 28
d. -4h + 22
Answer:
C.
Step-by-step explanation:
it would simplify to -4h+8+20
then if you gather like terms it would be -4h+28
3. Jasper estimates her car expenses at about $7 650.00 per year. How much
should Jasper budget monthly for car expenses?
Answer:
637.50
Step-by-step explanation:
7,650.00 per year divided by 12 months equals 637.50
The figure shown is a semicircle. Find its area. Round your solution to 2 decimal places.
Answer:
12.5 pie , 39.25 using pie=3.14, and 39.28 to be exact
Step-by-step explanation:
BTW n=pie
10in= Diameter
5in=Radius
Area=n5^2
= 25n/2
=12.5n
12.5 times 3.14= 39.25
22/7 times 12.5= 39.2857143
the change in altitude of a bird after 2 1/2 seconds was -41 1/4 feet. what was the average change in altitude of the bird in feet per second
PLEASE HELP
Answer:
-16¹/₂ feet per second
Step-by-step explanation:
average change in altitude in feet per second = change in altitude in feet/change in time in seconds
= -41¹/₄ ft ÷ 2¹/₂ s
= -165/4 ft ÷ 5/2 s
= -165/4 × 2/5 ft/s
= -33/2 feet per second
= -16¹/₂ feet per second
Which inequality represents all values of x for which the quotient below is
defined?
im not rlly understanding how to do this
Answer:
its D
Step-by-step explanation:
I just took the test and it was right
WILL GIVE BRAINLIEST IF RIGHT
Answer:
Step-by-step explanation:
2x^2+14x=520
x^2+7x-260
x(x+7)=260
so x=13
13x20=260
second
x^2+10x=875
x(x+10)=875
x= 25
25x35=875
Help me find the answer
Answer:
54
can i get brainly doe?
A grocery store sells tangerines in 2/5 kg bags. A customer bought 4 kg of tangerines for a school party.
How many bags did they buy?
what is the remainder when (5x4 + 3x3 - 2x2 + 7x + 4) ÷ (x + 2)?
A. 38
B. 2
C. -2
D. 24
Answer:
A
Step-by-step explanation:
My car is old and______
paint is peeling
Answer:
correct
Step-by-step explanation:
you got it right
Answer:
Its
Step-by-step explanation:
not it's because it's is the same thing as it is
please help :( please !
Answer:
8k+5
Step-by-step explanation:
1/2 6k = 3k
1/2 of 10 = 5
3k+5+5k = 8k+5
PLS HELP MEH PLLLSSSSSSSSSS
Write an inequality and solve each problem.
Kumar is saving to buy a bicycle that cost $375.25 so far he has saved $295.25 how much more money does he need?
Answer:
$80
Step-by-step explanation:
375 - 295 = 80
.25 - .25 = 0
2. Last year Kellog decided to reduce the size of packaging in order to raise 1 p the price per ounce. If the original size of the box was 18 oz and Kellog reduced the size of the packaging by 15%. How many oz can the new box hold?
Answer:
15.3 oz
Step-by-step explanation:
Here, we want to get the value of the new size after reduction
We start with reduction amount
That will be;
15/100 * 18 = 2.7 oz
So we now get what it can hold
That’s;
18-2.7 = 15.3 oz
What is the answer to question 2 written as an ordered pair?
Group of answer choices
(5, $5.25)
(5, $11.25)
($5.25, 5)
($11.25, 5)
Answer:
wheres question two
Step-by-step explanation:
you didnt add it
Which equation represents a nonlinear equation
Answer:
This is pretty simple. I don't have a website for it but find a website were you can plug in these equation onto a graph and whatever equation forms a curve is the answer here is an example.
Step-by-step explanation:
f+40/−3≥−16
f = 2
f = 5
f = 8
f=11
Find the value of r so that the ratios are equivalent.
3:r and 12:40
Answer:
r=10
Step-by-step explanation:
3*4=12, and 10*4=40
what is the value of y in the following equations y=3x-5 6x+3y=15
8. Determine whether the triangles are similar. If so, write a similarity
statement and the postulate or theorem that justifies your answer.
Answer:
Option (4)
Step-by-step explanation:
If ΔLMN is similar to ΔQRS,
Their corresponding sides will be proportional.
[tex]\frac{LM}{QR}= \frac{MN}{RS}= \frac{LN}{QS}[/tex]
[tex]\frac{5}{6}= \frac{3}{4}= \frac{6}{7}[/tex]
But it's not true.
Therefore, the given triangles ΔLMN and ΔQRS are not similar.
Option (4) will be the answer.
Explain how 32
Divided 4 can help you solve
320 divided 4?
Answer/Step-by-step explanation:
Since 320 is 10 times 32. The answer for 320 divided by 4 is going to be 10 times the answer of 32 divided by 4.
320 ÷ 4 = 80
32 ÷ 4 = 8
As 320 is 10 times of 32 then values results also 10 times.
What is Division?One of the four fundamental mathematical operations, along with addition, subtraction, and multiplication, is division. Division is the process of dividing a larger group into smaller groups so that each group contains an equal number of things. It is a mathematical operation used for equal distribution and equal grouping.
Given:
We have to divide 32 by 4.
The division is as follow:
= 32/4
= (4 x 8)/ 4
= 8
If we multiply 10 to 32 then we get 320.
Then, if we multiply 10 to 8 we get
= 10 x 8
= 80
Learn more about Division here:
https://brainly.com/question/21416852
#SPJ5
Diego has 27 ounces of juice. He pours equal amounts for each of his 3 friends and has 6 ounces left for himself. A. Find the solution to the equation you chose for the story above. B. Explain what the solution means in the context of the story.
Answer:
3x + 6 =27
Step-by-step explanation:
A. The solution is 7! First I Subtracted 6 from both sides of the equation, Then I Divided both sides of the equation by the same term. Then I got "7" from doing the following.
B. The solution is the x in the answer which is the amount of juice he poured.
"Diego has 27 ounces of juice. He pours equal amounts for each of his 3 friends and has 6 ounces left for himself"
tell me if i did something wrong