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
Maksim231197 [3]
3 years ago
10

The circle shown has a radius of 4 cm.

Mathematics
1 answer:
Vesna [10]3 years ago
7 0

Answer:

8 cm

Step-by-step explanation:

4+4=8 To get the diameter, double the radius and add them together.

You might be interested in
8.14÷20 please show work​
saul85 [17]

Answer:

0.407

Step-by-step explanation:

 <u>0. 4 0 7</u>

2 0     /8. 1 4 0

 −<u> 0</u>      

   8 1    

 <u>− 8 0   </u>

     1 4  

  <u> −   0  </u>

     1 4 0

   −<u> 1 4 0</u>

         0

6 0
3 years ago
Read 2 more answers
An electrical engineer wishes to compare the mean lifetimes of two types of transistors in an application involving high-tempera
Olin [163]

Answer:

(115.2642, 222.7358).

Step-by-step explanation:

Given data:

type A: n_1=60, xbar_1=1827, s_1=168

type B: n_2=180, xbar_2=1658, s_2=225

n_1 = sample size 1, n_2= sample size 2

xbar_1, xbar_2 are mean life of sample 1 and 2 respectively. Similarly, s_1 and s_2 are standard deviation of 1,2.

a=0.05, |Z(0.025)|=1.96 (from the  standard normal table)

So 95% CI is

(xbar_1 -xbar_2) ± Z×√[s1^2/n1 + s2^2/n2]

=(1827-1658) ± 1.96×sqrt(168^2/60 + 225^2/180)

= (115.2642, 222.7358).

8 0
3 years ago
Determine whether each statement is sometimes, always, or never tru. Give an example or a counterexample.A ratio is a rate
Natali [406]

Answer:

3:2

Step-by-step explanation:

Yes a ratio is a rate

8 0
4 years ago
3. Bob the Builder wants to earn an annual rate of 10% on his investments,
mamaluj [8]

Answer:

He should pay $2,790.7.

Step-by-step explanation:

This is a simple interest problem.

The simple interest formula is given by:

E = P*I*t

In which E is the amount of interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time, in years.

After t years, the total amount of money is:

T = E + P

In this question:

Rate of 10%, so I = 0.1.

9 months, so t = \frac{9}{12} = 0.75

How much should he pay for a note that will be worth $3,000 in 9 months?

We have to find P for which T = 3000. So

T = E + P

3000 = E + P

E = 3000 - P

Then

E = P*I*t

3000 - P = P*0.1*0.75

1.075P = 3000

P = \frac{3000}{1.075}

P = 2790.7

He should pay $2,790.7.

8 0
3 years ago
The measure of two supplementary angels, s and t, are the ratio of 7:3. Find the value of s
Andrews [41]

7x+3x=180

10x=180

/10     /10

x=18

7x=s

7(18)=126

3x=t

3(18)=t

54=t

6 0
3 years ago
Read 2 more answers
Other questions:
  • Please help meeeeee simplify the expression
    12·1 answer
  • Multiply (2x-5)(x+7) and show work please
    13·2 answers
  • Find the slop that gos through (-8,9) and (-8,-7)​
    7·1 answer
  • Slope and point on line of the equation y - 6= 3(x-5)
    15·1 answer
  • Angel rode his bike 8 km South 5 km East how long did it take Angel to get back ​
    13·1 answer
  • Sarah grace has to work 75 hours of community service for her honor society. she has already worked 15 hours. how many hours a w
    5·2 answers
  • A daffodil grows 0.05m every day. Plot the growth of the flower if the initial length of the daffodil is 0.8m and hence give the
    8·1 answer
  • Please Help I don’t get it at all N/2+5=3
    12·2 answers
  • Solve the<br> equation:<br> 6x = -78
    8·2 answers
  • Evaluate |-7| + 3|4|
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!