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
OLEGan [10]
3 years ago
11

Question and choices Are below

Mathematics
1 answer:
Vika [28.1K]3 years ago
7 0

Answer:

9ft

Step-by-step explanation:

Use the pythagorean theorem.

15^2 = 12^2 + x^2

solve for x

x^2 = 81

x = 9

You might be interested in
The half life of silicone-32 is 710 years. If 30 grams is present now, how much will be present in 300 years?
Irina18 [472]

Answer:

22.38 g of silicone-32 will be present in 300 years.

Step-by-step explanation:

A radioactive half-life refers to the amount of time it takes for half of the original isotope to decay and its given by

                                           N(t)=N_0(\frac{1}{2})^{\frac{t}{t_{1/2}}

where,

N(t) = quantity of the substance remaining

N_0 = initial quantity of the substance

t = time elapsed

t_{1/2} = half life of the substance

From the information given we know:

  • The initial quantity of silicone-32 is 30 g.
  • The time elapsed is 300 years.
  • The half life of silicone-32 is 710 years.

So, to find the quantity of silicone-32 remaining we apply the above equation

N(t)=30\left(\frac{1}{2}\right)^{\frac{300}{710}}=30\left(\frac{1}{2}\right)^{\frac{30}{71}}\approx22.38 \:g

22.38 g of silicone-32 will be present in 300 years.

7 0
3 years ago
WILL MARK BRAINLEST HELPP ME
vitfil [10]

Answer:

Supplimentry

Step-by-step explanation:

7 0
3 years ago
Anna ate 1/5 of her candy bar. What decimal represents the amount she ate?
Natalija [7]

Answer:

.25

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
2x +12 - 8x - 7= -10x + 2 + 4x +3.
worty [1.4K]

Answer:

r37grqigohw

Step-by-step explanation:

5 0
3 years ago
Each week reads the store ads and uses couports This week Pop's Market bas detergent on sale at for $11.96. The regular price of
BaLLatris [955]
Answer is b Fosho Fosho
8 0
3 years ago
Other questions:
  • Which is not a pair of congruent angles in the diagram below?
    12·2 answers
  • The volume of a cylinder is 540_ ft3. The height is 15 ft. What is the diameter of the cylinder?
    8·2 answers
  • How do I solve this?
    15·2 answers
  • The midpoint of AB is M(2,-2). If the coordinates of A are (-2,1), what ate the coordinates of B?
    5·1 answer
  • (4 ten thousands 4 thousands) x 10
    13·2 answers
  • Solve for x and find the<br> missing angles :)
    14·1 answer
  • H + 12 = 31<br> equal what equation h=
    11·1 answer
  • A can of paint covers 400 square feet how many cans will be needed to cover 3000 feet
    15·1 answer
  • Solve x2−4x−12=0 by completing the square. A x=−2 B x=−6 or x=2 C x=−2 or x=6 D x=−6
    7·1 answer
  • Can someone help me with this please?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!