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
steposvetlana [31]
2 years ago
15

13 = r/12 solve for r

Mathematics
1 answer:
VladimirAG [237]2 years ago
3 0
13 = r/12, first to cancel 12 and leave r alone you multiply it by 12 and it cancels and whatever you do on one side you do to the other. So you multiply 13 times 12 too.

You are then left with, 13•12 = r
Which is 156

Therefore,

r = 156
You might be interested in
When the p-value is used for hypothesis testing, the null hypothesis is rejected if _____
pashok25 [27]

Answer:

B

Step-by-step explanation:

Here, we are to give the reason why we would reject the null hypothesis during the hypothesis testing.

In considering whether to accept the null hypothesis or reject the null hypothesis, we have to take into consideration two things.

The p-value and the alpha value. The p-value refers to the probability which is directly obtainable from the standard score which is referred to as the z-score while the alpha refers to the level of significance.

Now, when the p-value is less than alpha, we simply reject the null hypothesis and accept the alternative hypothesis. In a case however, we have the value of p greater than or equal to the significance level alpha, we simply accept the null hypothesis in this case.

The question asks for a rejection case and this can happen only when the p-value is less than the level of significance alpha

5 0
2 years ago
What is the area of the square below?
maria [59]

Answer:

Step-by-step explanation:

32

4 0
2 years ago
Read 2 more answers
The area of a trapezium is 360 cm² and its height is 18 cm. If one of the parallel sides is longer than the other by 6 cm, then
Leokris [45]

Answer:

The two parallel sides a and b are 17 cm and 23 cm respectively

Step-by-step explanation:

Area of a trapezium = {(a+b)/2} h

Where

h = height = 18 cm

a = parallel side 1 = x

b = parallel side 2 = x + 6

Area of a trapezium = {(a+b)/2} h

360 = {(x + x + 6) / 2} 18

360 = { (2x + 6) / 2} 18

360 = (2x + 6) 9

360 = 18x + 54

Subtract 54 from both sides

360 - 54 = 18x

306 = 18x

Divide both sides by 18

x = 306 / 18

= 17

x = 17 cm

a = parallel side 1 = x

x = 17 cm

b = parallel side 2 = x + 6

x + 6

= 17 + 6

= 23 cm

8 0
2 years ago
HELP NEEDED IN MATHS
Nata [24]
30-2q=16
-2q=16-30
-2q=-14
q=7
7 0
3 years ago
What is the first operation you start with when solving
Alex17521 [72]
The correct answer is B addition
You will add 4 to both sides then the equation will be 2x=5
5 0
3 years ago
Other questions:
  • Find the discriminant of 5x^2+3x-5=0 for x
    8·2 answers
  • Combine Like Terms. 7x - 5x
    13·2 answers
  • Keith has $400. Andrew has 3/4 as much as Keith. If Andrew gives 15% to Kevin how much does he have
    13·1 answer
  • Find the lateral area the regular pyramid.<br><br><br><br> L. A. =
    10·1 answer
  • Consider the inequality -20.2 &gt; 0y. Which of the following must be true? Check all that apply. You cannot divide by zero. The
    11·2 answers
  • I have a really hard time with math. Please explain this to me.
    6·1 answer
  • Triangle X Y Z is shown. Line Z X is extended through point W to form exterior angle W X Y.
    6·1 answer
  • Help finding the area
    5·1 answer
  • What is the circumference of the given circle in terms of <img src="https://tex.z-dn.net/?f=%5Cpi" id="TexFormula1" title="\pi"
    12·2 answers
  • Help anyone please.................................
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!