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
igomit [66]
3 years ago
13

22=a(0-10)²+72 Please solve ‘a’ for me ! Asap

Mathematics
2 answers:
krok68 [10]3 years ago
8 0

Answer:

a = - \frac{1}{2}

Step-by-step explanation:

22 = a(0 - 10)² + 72

simplify:

22 = a(-10)² + 72

22 = a × 100 + 72

22 = 100a + 72

subtract 72 from both sides:

100a = -50

divide both sides by 100:

a = - \frac{1}{2}

avanturin [10]3 years ago
7 0

Answer:

a=-0.5

Step-by-step explanation:

22=a(0-10)²+72=a(-10)^2+72=a(100)+72

collect like terms

100 a=22-72=-50

dividing by 100

a=-50/100 =-1/2 = -0.5

You might be interested in
After 3 days a sample of radon-222 has decayed to 58% of its original amount.
Rina8888 [55]
The half-life of the radioactive substance can be determined through teh equation ln 2 = k (t 1/2) where k is equal to ln (1/(1-0.58)) / 3. Hence t 1/2 is equal to 2.40 days. To decay to 10% of the original amount, ln (1/0.90) / ( ln2) / 2.40, time is equal to 0.37 days.
6 0
3 years ago
Find the volume of the prism:
Margarita [4]

Answer:

168 units cubed

Step-by-step explanation:

so we know it's base times height right

so like identifying the base doesn't matter as long as you're smart enough to figure how to calculate then whatever lol

so like the base let's just say it's the triangle because that's probably what you're struggling on

so the base of the triangle is like what lol 6 * 8 / 2 = 48 / 2 = 24 so then you have the base multiply by the third dimension

24 * 7 = 140 + 28 = 168 so yeaaaaaaa and it's cubed because it's three dimensional

5 0
3 years ago
Read 2 more answers
The point (8,k) lies on the line y=3x-5
Contact [7]

Answer:

x times 5 is 21

Step-by-step explanation:

you times x to 5 and then you will get 21

7 0
3 years ago
Solve 2 + 3ex + 2 = 7 for x. Please be quick
Ann [662]

Answer:

The answer is C. x=In(5/3)-2

Step-by-step explanation:

3 0
3 years ago
It has been estimated that the population of Indianapolis is growing at a rate of 0.9% per year. Assuming that population growth
Mumz [18]

Answer:

<em>2,136,605</em>

<em />

Step-by-step explanation:

To estimate growth, we use the formula shown below:

F=P(1+r)^t

Where

F is the future amount (we want to find for Jan 2024)

P is the present amount (present population of 1,988,817)

r is the rate of growth (0.9% means 0.009)

t is the time in years (from Jan 2016 to Jan 2024 is 8 years, t = 8)

<em>Let's put these into the formula and figure out F:</em>

<em>F=P(1+r)^t\\F=1,988,817(1+0.009)^8\\F=2,136,604.5</em>

<em />

<em>Rounding we get the population in Jan 2024 to be </em><em>2,136,605</em>

3 0
3 years ago
Other questions:
  • A father is 60 years old and his son is half his age how old was the boy when his father was four times his age
    10·1 answer
  • Someone help pls!!! :)))
    15·1 answer
  • 2(2x +1) = 3(x-8) =<br>how do you solve this ​
    12·1 answer
  • Previous<br> 11<br><br><br><br><br><br><br><br><br><br> Solve 2+16y=3x+4 for y.
    9·1 answer
  • PLEASE ANSER THIS ASAP<br> no files please
    7·1 answer
  • Solve for mZTUV.<br> U<br> T<br> 87°<br> 59°<br> V<br> W
    9·1 answer
  • What is the value of x? Please explain how you got to this answer so I can answer similar questions.
    6·1 answer
  • Find the volume of the cone. <br> Formula:<br> Substitute:
    5·2 answers
  • What is the perimeter of this triangle 3x+10, x-7
    6·2 answers
  • Help me ASAP for this question
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!