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
notka56 [123]
3 years ago
15

The diameter of a circle is 12 inches. What is the radius?

Mathematics
2 answers:
djyliett [7]3 years ago
7 0

Answer:

aaaaaa

Step-by-step explanation:

12*12

serious [3.7K]3 years ago
7 0

Answer:

6 in

Step-by-step explanation:

The radius is half the diameter.  If the diameter here is 12 in, then the radius must be 6 in

You might be interested in
HELP IN NEED!
laiz [17]

Answer:

AB=12\sqrt{3}\ cm

Step-by-step explanation:

If AB is tangent to the circle, then angle ABO is right angle and triangle AOB is special 30^{\circ}-60^{\circ}-90^{\circ} triangle. In this triangle, the leg that is opposite to the angle of 30° is half of the hypotenuse. Thus,

AO=2BO=2\cdot 12=24\ cm.

By the Pythagorean theorem,

AB^2=AO^2-BO^2,\\ \\AB^2=24^2-12^2,\\ \\AB^2=576-144=432,\\ \\AB=12\sqrt{3}\ cm.

6 0
2 years ago
I need help!! 100 points! Please don't scam, I will report and take away these points!
pentagon [3]

Answer:

A angle 7 is 6 inches

B angle 8 is 7 inches and 5 inches wide

C angle 3 is an obtuse angle, 6 inches and 9 inches wide

8 0
3 years ago
The diameter of steel rods manufactured on two different extrusion machines is being investigated. Two random samples of sizes
devlian [24]

Answer:

(a) There is no evidence to support the claim that the two machines produce rods with different mean diameters.

P-value is 0.818

(b) 95% confidence interval for the difference in mean rod diameter is (-0.17, 0.27).

This interval shows that the difference in mean is between -0.17 and 0.27.

Step-by-step explanation:

(a) Null hypothesis: The two machines produce rods with the same mean diameter.

Alternate hypothesis: The two machines produce rods with different mean diameter.

Machine 1

mean = 8.73

variance = 0.35

n1 = 15

Machine 2

mean = 8.68

variance = 0.4

n2 = 17

pooled variance = [(15-1)0.35 + (17-1)0.4] ÷ (15+17-2) = 11.3 ÷ 30 = 0.38

Test statistic (t) = (8.73 - 8.68) ÷ sqrt[0.38(1/15 + 1/17)] = 0.05 ÷ 0.218 = 0.23

degree of freedom = n1+n2-2 = 15+17-2 = 30

Significance level = 0.05 = 5%

Critical values corresponding to 30 degrees of freedom and 5% significance level are -2.042 and 2.042.

Conclusion:

Fail to reject the null hypothesis because the test statistic 0.23 falls within the region bounded by the critical values -2.042 and 2.042.

There is no evidence to support the claim that the two machines produce rods with different mean diameters.

Cumulative area of test statistic is 0.5910

The test is a two-tailed test.

P-value = 2(1 - 0.5910) = 2×0.409 = 0.818

(b) Difference in mean = 8.73 - 8.68 = 0.05

pooled sd = sqrt(pooled variance) = sqrt(0.38) = 0.62

Critical value (t) = 2.042

E = t×pooled sd/√n1+n2 = 2.042×0.62/√15+17 = 0.22

Lower limit of difference in mean = 0.05 - 0.22 = -0.17

Upper limit of difference in mean = 0.05 + 0.22 = 0.27

95% confidence interval for the difference in mean rod diameter is between a lower limit of -0.17 and an upper limit of 0.27.

3 0
3 years ago
What is the value of x?<br> Please help fast will give brainliest help fast
serious [3.7K]

Answer:

17

Step-by-step explanation:

because of the kind of angle it is, the two equations are equal. So, put the equations equal to each other and solve:

x+35=3x+1

combine like terms (by subtracting)

2x=34

isolate x by dividing by 2

x=17

17

8 0
3 years ago
Read 2 more answers
1) What is the volume of this aquarium?<br> 5 in.<br> 6 in.<br> 5 in.<br> 10 in.<br> 18 in.
Flura [38]
Which one is the length, height, and width? After you that then multiple and you should have your answer. Hope this helps!
4 0
2 years ago
Other questions:
  • Which one digit numbers can you subtract from 74 without first regrouping?
    14·2 answers
  • F(x)=x^2-6x+11 state the quadratic formula
    5·2 answers
  • Select the equivalent expression.<br> (3^-8 • 7^3)^-2 =?
    13·2 answers
  • What does "⋅" mean in math..
    5·2 answers
  • Is the triangle with the side lengths 5,12,13 right, obtuse, or acute? Why?
    6·1 answer
  • Can someone please help me
    11·1 answer
  • The shopping center in Montgomeryville has 23,619 square feet the shopping center in harleyville has 6,522 square feet. What sta
    15·1 answer
  • The manager of a football team is keeping track of the yards
    12·1 answer
  • What’s the answer y’all
    13·1 answer
  • The equation y= 12x-9 has its y-intercept at the point
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!