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
Ainat [17]
3 years ago
15

Solve the equation. 3m=39

Mathematics
2 answers:
Liula [17]3 years ago
8 0

Answer:

3x13=39

Step-by-step explanation:

iris [78.8K]3 years ago
8 0

3m = 39

m =  \frac{39}{13}

m = 3

Let us check if it is correct or not :-

3 \times m = 39

3 \times 13 = 39

LHS = RHS

therefore \:  , \:  \: 3 \times 13 = 39

You might be interested in
A hypothesis is only tentative: to make sure it's valid, you have to ___________.
GREYUIT [131]
A hypothesis is only tentative: to make sure it's valid, you have to test it.
4 0
3 years ago
Which of the two nearest numbers to 19506<br> are divisible by 9?
emmasim [6.3K]

Answer:

I'm pretty sure it's 19,497 as the 1st nearest, and 19,515 as the 2nd

Because 19,506-9 is 19,497 and 19,506+9 is 19,515

4 0
3 years ago
An open metal tank of square base has a volume of 123 m^3
snow_lady [41]

Answer:

  a) h = 123/x^2

  b) S = x^2 +492/x

  c) x ≈ 6.27

  d) S'' = 6; area is a minimum (Y)

  e) Amin ≈ 117.78 m²

Step-by-step explanation:

a) The volume is given by ...

  V = Bh

where B is the area of the base, x^2, and h is the height. Filling in the given volume, and solving for the height, we get:

  123 = x^2·h

  h = 123/x^2

__

b) The surface area is the sum of the area of the base (x^2) and the lateral area, which is the product of the height and the perimeter of the base.

S=x^2+Ph=x^2+(4x)\dfrac{123}{x^2}\\\\S=x^2+\dfrac{492}{x}

__

c) The derivative of the area with respect to x is ...

S'=2x-\dfrac{492}{x^2}

When this is zero, area is at an extreme.

0=2x -\dfrac{492}{x^2}\\\\0=x^3-246\\\\x=\sqrt[3]{246}\approx 6.26583

__

d) The second derivative is ...

S''=2+\dfrac{2\cdot 492}{x^3}=2+\dfrac{2\cdot 492}{246}=6

This is positive, so the value of x found represents a minimum of the area function.

__

e) The minimum area is ...

S=x^2+\dfrac{2\cdot 246}{x}=(246^{\frac{1}{3}})^2+2\dfrac{246}{246^{\frac{1}{3}}}=3\cdot 246^{\frac{2}{3}}\approx 117.78

The minimum area of metal used is about 117.78 m².

3 0
2 years ago
One solution to a quadratic equation is 4 - 5i. Find the equation.
marishachu [46]

Answer:

The answer would be Equation B:

x2 - 8x + 41

Step-by-step explanation:

4 0
3 years ago
What is 4 divide 120<br> Show me that<br> divide by 120
Lena [83]

Answer: 120 divided by 4 = 30

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • About how many times larger is 6.14 x 10-3 than 1.98 x 10-4?
    10·2 answers
  • Simplify the expression (8/125) ^1/3
    10·1 answer
  • Mr. smith baked 3 trays of 36 cookies. After they cooled he divided the cookies evenly into 4 bags. How many cookies did mr. smi
    14·2 answers
  • What is the value of z in the question sin(4z) = cos(30 + 2z)?
    7·1 answer
  • How many factor are there for 24?
    5·2 answers
  • Which number goes in the blank?
    15·1 answer
  • My question is in the picture pls help
    8·1 answer
  • Give the name of the two angles state the relationship between the 2 angles solve for x then find the measure of the indicated a
    14·1 answer
  • 7 1/2 cups of milk makes _ batches of ice cream ​
    8·1 answer
  • Which distribution is positively skewed?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!