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
OleMash [197]
3 years ago
14

Who can help me with this

Mathematics
1 answer:
Jlenok [28]3 years ago
3 0
The answer would be A.
You might be interested in
HELP ME PLEASE!!! Steps would be helpful :)
SIZIF [17.4K]

Answer:

i believe the answer is 9.5

Step-by-step explanation:

cos60 = c / 19 = 9.5

4 0
3 years ago
Find the value of x.
pogonyaev

1st image:

20 (20 + x) = 40^2

400 + 20x = 1600

20x = 1200

   x = 60

---------------

2nd image:

5 * x = 10 * 6

5x = 60

 x = 12


4 0
2 years ago
The equation (x + 6)^2 + (y + 4)^2 = 36 models the position and range of the source of a radio signal. Describe the position of
ElenaW [278]
A circle equation is :
( x - p )² + ( y - q )² = r², where p and q are coordinates of the center.
The position of the source is : ( - 6, - 4 ) and the range :
r² = 36   ⇒   r = 6
3 0
3 years ago
Read 2 more answers
Find the equation of the sphere passing through pleft parenthesis negative 4 comma 7 comma 6 right parenthesis(−4, 7, 6) and qle
Oksi-84 [34.3K]

The equation of a sphere is:

(x – h)^2 + (y – k)^2 + (z – l)^2 = r^2

where h, k and l are the coordinates of the center of the sphere

 

Using the midpoint formula, the coordinate of the center is:

h = (-4 + 6) / 2 = 1

k = (7 + -5) / 2 = 1

l = (6 + 7) / 2 = 6.5

 

so the equation becomes:

(x – 1)^2 + (y – 1)^2 + (z - 6.5)^2 = r^2

 

we plug in any point, in this case point P to solve for r:

(-4 -1)^2 + (7 – 1)^2 + (6 - 6.5)^2 = r^2

r^2 = 61.25

 

So the full equation is:

<span>(x – 1)^2 + (y – 1)^2 + (z - 6.5)^2 = 61.25</span>

8 0
3 years ago
Liz flips a coin 30 times. The coin lands heads up 21 times and tails up 9 times. Complete each
SSSSS [86.1K]

Answer:

Pr = 0.50

Step-by-step explanation:

Given

n = 30

H = 21

T = 9

See attachment for complete question

Required

P(H)

The question requires that we calculate the theoretical probability of landing on the head.

This means that, we have to ignore the given data, and we use the following

S =\{H,T\} --- sample space

n(S) = 2 --- sample size

n(H) = 1 --- occurrence of Head

So, the theoretical probability is:

Pr = n(H)/n(S)

Pr = 1/2

Pr = 0.50

8 0
2 years ago
Other questions:
  • Solve |2x + 1| = 10<br> {9/2, 11/2}<br> {-9/2, 9/2}<br> {-11/2, 9/2}
    9·1 answer
  • Is a number 36 a perfect square and why​
    11·1 answer
  • Gary ate 21/25 of his candy bar. What percent of the candy bar did Gary eat?
    6·2 answers
  • Find the value of -20+ (-100)-(-100)+(-150)-300
    9·2 answers
  • If you have 5 distinct positive integers and the median is 17 and the mean is 12, what are the 5 numbers? How do you know for su
    13·1 answer
  • The graph shows the amount of money you and a friend are saving for a camping trip. You: 2 weeks 40 dollars. 5 weeks 100 dollars
    8·1 answer
  • Convert 1100111 into decimal numbers ​
    14·1 answer
  • DONT REMOVE MY QUESTIONS BRAINLY
    11·1 answer
  • The derivative of a function f(x) is given by f'(x)=3x^2-6x+4. The tangent line at the point (2,9) is parallel to another tangen
    8·1 answer
  • Which of the following could cause a 32 oz bag of chips to not weigh exactly 32 oz?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!