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
fenix001 [56]
3 years ago
13

PLEASE HELP ASAP I am kinda stuck on this because my teacher didn’t teach me this

Mathematics
1 answer:
wariber [46]3 years ago
5 0

Answer:

the first option

a = -2

b = 3

Step-by-step explanation:

See photo attached. (:

You might be interested in
Please help right away.
Travka [436]

\sum\limits_{k=1}^{\infty}420\left(\dfrac{1}{6}\right)^{k-1}

The infinite geometric series is converges if |r| < 1.

We have r=1/6 < 1, therefore our infinite geometric series is converges.

The sum S of an infinite geometric series with |r| < 1 is given by the formula :

S=\dfrac{a_1}{1-r}

We have:

a_1=420\left(\dfrac{1}{6}\right)^{1-1}=420\left(\dfrac{1}{6}\right)^0=420\\\\r=\dfrac{1}{6}

substitute:

S=\dfrac{420}{1-\frac{1}{6}}=\dfrac{420}{\frac{5}{6}}=420\cdot\dfrac{6}{5}=84\cdot6=504

Answer: d. Converges, 504.

8 0
3 years ago
If there are 360 grams of radioactive material with a half-life of 8 hours, how much of the radioactive material will be left af
lyudmila [28]

Answer:

There will be 22.5 grams left after 32 hours.

Step-by-step explanation:

A half-life is how long it takes for half of the amount to go away. In this case, we see that we have two half-life periods worth, which you can determine by dividing the total time by the half-life time.

32hrs/8hrs = 4 half lives.

Now we can raise 1/2 to the power of how many half lives we have (2). Then we multiply that by the amount in the sample.

(1/2)^4 * 360

1/16 * 360

22.5 grams

And this is an exponential function.

4 0
3 years ago
Read 2 more answers
Please help! Giving brainliest
lianna [129]

Answer:

5y^2-12y+21-73/2y+3

6 0
2 years ago
Can some one solve this
alex41 [277]

Answer:

J Monica is right

Step-by-step explanation:

Add three to both sides, divide by 4 you get x\geq4

6 0
3 years ago
Read 2 more answers
If I need to use 4/5 of a cup of strawberries for a single pie. How many cups are needed for 2 pie?
monitta
4/5 x 2= 8/5
Which is 1 3/5 cups needed for 2 pies
5 0
3 years ago
Read 2 more answers
Other questions:
  • A cone has a volume of 2560π cm cubed and a heigh of 30 cm.
    15·1 answer
  • Expand 2x(5x-2) <br><br> Help please ?
    5·2 answers
  • 1. What's the size of ∠ABC shown in the above figure?
    15·2 answers
  • A railroad crew can lay 7 miles of track each day. They need to lay 203 miles of track. The length, L (in miles), that is left t
    10·1 answer
  • Mrs. Kelly's brother is 15 year younger than her. Their combined ages add up to 62 years. What is Mrs. Kelly's age
    15·1 answer
  • Help!!!!!!!!!!!!!!!!!!!!!
    15·1 answer
  • Please help asap, i need to get this done
    5·2 answers
  • Enter a fraction equivalent to 0.4. Use only whole numbers for numerators and denominators.
    9·1 answer
  • The length of an arc of a circle is 7.5 cm. The corresponding sector area is 37.5 cm squared. Find the radius of the circle​
    14·2 answers
  • Given: Line segment A B is parallel to line segment D C and Measure of angle 2 equals measure of angle 4
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!