1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Stells [14]
3 years ago
15

What number increased by 7 equals two times the number? 6 7 8 9 11

Mathematics
2 answers:
Julli [10]3 years ago
8 0

Answer:

7

Step-by-step explanation:

7 plus 7 equals 14, which is two times 7

garri49 [273]3 years ago
5 0
Your answer is 7 because 7 increased by 7 equals 14 which is technically 2 x 7
You might be interested in
Can someone help ?
andreev551 [17]

Answer:

A 234.11

Step-by-step explanation:

= 234.11148454551 feet^{3}  is what you get lol

8 0
2 years ago
Read 2 more answers
Which are ways to decompose the composite figure into simpler shapes that you have area formulas for? Check all that apply.
Oksanka [162]

Answer:

1st  and second, unless you have already learned area of trapezoids. If you have, add third

Step-by-step explanation:

4 0
3 years ago
The function f(x) = x3 – 7x + bis shown in the figure.<br> 15+
Anna007 [38]

Answer:

The correct answer is

(x + 2) (x + 1) (x - 3)

Step-by-step explanation:

4 0
3 years ago
NEED HELP!!! please:)
Dahasolnce [82]
No, Jonah is not correct. The answer is shown in the picture.

8 0
3 years ago
Since at t=0, n(t)=n0, and at t=∞, n(t)=0, there must be some time between zero and infinity at which exactly half of the origin
Airida [17]
Answer: t-half = ln(2) / λ ≈ 0.693 / λ

Explanation:

The question is incomplete, so I did some research and found the complete question in internet.

The complete question is:

Suppose a radioactive sample initially contains N0unstable nuclei. These nuclei will decay into stable nuclei, and as they do, the number of unstable nuclei that remain, N(t), will decrease with time. Although there is no way for us to predict exactly when any one nucleus will decay, we can write down an expression for the total number of unstable nuclei that remain after a time t:

N(t)=No e−λt,

where λ is known as the decay constant. Note that at t=0, N(t)=No, the original number of unstable nuclei. N(t) decreases exponentially with time, and as t approaches infinity, the number of unstable nuclei that remain approaches zero.

Part (A) Since at t=0, N(t)=No, and at t=∞, N(t)=0, there must be some time between zero and infinity at which exactly half of the original number of nuclei remain. Find an expression for this time, t half.

Express your answer in terms of N0 and/or λ.

Answer:

1) Equation given:

N(t)=N _{0} e^{-  \alpha  t} ← I used α instead of λ just for editing facility..

Where No is the initial number of nuclei.

2) Half of the initial number of nuclei: N (t-half) =  No / 2

So, replace in the given equation:

N_{t-half} =  N_{0} /2 =  N_{0}  e^{- \alpha t}

3) Solving for α (remember α is λ)

\frac{1}{2} =  e^{- \alpha t} &#10;&#10;2 =   e^{ \alpha t} &#10;&#10; \alpha t = ln(2)

αt ≈ 0.693

⇒ t = ln (2) / α ≈ 0.693 / α ← final answer when you change α for λ




4 0
3 years ago
Other questions:
  • What does v equal? <br> Read my picture.
    15·2 answers
  • The area of trapezoid TRAP is 100. Furthermore, TR=32, AP=8, and TP=RA. If T=R what is the ;length of segment TP?
    9·1 answer
  • The length of a rectangle is five times its width.
    10·1 answer
  • D is not the answer. SO WHAT IS IT
    15·1 answer
  • an airplane flies at an altitude of 38,000 feet.as it nears the airport the plane begins to descend at a rate of 600 per minute
    7·1 answer
  • Adriana is saving to buy a camera for $150. She has $25 in her savings account. Every week she earns $9 an hour babysitting for
    10·2 answers
  • Subtract 5/6-(-4/9)<br><br> Please
    14·2 answers
  • Determine the value of y, if x is 4.<br> Y=|x-7|
    9·1 answer
  • Find the distance between y = -4x + 5 and y= -4x + 7. Round your answer to the nearest tenth
    12·1 answer
  • Match each value to what it represents. 25 = 32 1. 32 power 2. 5 exponent 3. 2 base
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!