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
ExtremeBDS [4]
3 years ago
7

Which is the product of (3)(7) and why?

Mathematics
1 answer:
irina [24]3 years ago
8 0

Answer:

21

Step-by-step explanation:

You might be interested in
What is the equation of the following line written in slope-intercept from??
Gemiola [76]
X=2
hope that helps!
3 0
3 years ago
PLS HELP!! GIVING BRAINLIEST TO FIRST CORRECT ANSWER!!+50 POINTS
Elena-2011 [213]

Answer(s):

  • 154 in²
  • 3168/7 km²
  • 38.5 m²

Revising the area of a circle formula

We already know that the area of a circle is expressed as \pi r^{2}.

  • The "r" variable is known as the radius.
<h2><u>Solving each problem given:</u></h2><h3>Solving Problem 4:</h3>

We are given the radius of circle, which is 7 in. Let us substitute the radius in the formula. Once substituted, we can simplify the expression obtained to determine the area of the circle shown in the picture.

\implies \pi (7)^{2}

<u>Take π as 22/7</u>

\implies \huge\text{(}\dfrac{22}{7} \huge\text{)}(7)^{2}<em> </em>

\implies \huge\text{(}\dfrac{22}{7} \huge\text{)}(7)(7)

\implies (22)(7)

\implies 154 \ \text{in}^{2}

<h3>Solving Problem 5:</h3>

In this problem, we are given the diameter to be 24 kilometers. Since the radius of the circle is half the diameter, we can tell that the radius of the circle is 24/2 kilometers, which is 12 kilometers.

\implies \pi (12)^{2}

<u>Take π as 22/7</u>

\implies \huge\text{(}\dfrac{22}{7}\huge\text{)} (12)^{2}

\implies \huge\text{(}\dfrac{22}{7}\huge\text{)} (12)(12)

\implies \dfrac{3168}{7} \ \text{km}^{2}

<h3>Solving Problem 6:</h3>

We are given the radius of circle, which is 3.5 in. Let us substitute the radius in the formula. Once substituted, we can simplify the expression obtained to determine the area of the circle shown in the picture.

\implies \pi (3.5)^{2}

<u>Take π as 22/7</u>

\implies \huge\text{(}\dfrac{22}{7}\huge\text{)}  (3.5)^{2}

\implies \huge\text{(}\dfrac{22}{7}\huge\text{)}  (3.5)(3.5)

\implies \huge\text{(}\dfrac{22}{2}\huge\text{)} (3.5) = (11) (3.5)

\implies 38.5 \ \text{m}^{2}

Note: <em>The radius given in this problem was not clearly stated. If the radius I stated here, is incorrect, please notify me in the comments. Thanks!</em>

Learn more about area of circles: brainly.com/question/12414551

3 0
2 years ago
Simplify the expression 2x - 4 + 3x
torisob [31]
To simplify the equation. 2x - 4 + 3x, all you need to do is combine like terms, which are 2x and 3x. The resulting answer would be 5x - 4. Hope this helps and have a wonderful day!
5 0
3 years ago
Read 2 more answers
Solve the inequality 0&lt;5x-2&lt;8
zloy xaker [14]

Answer:

×= 2 this is what I got as a result to my equations

8 0
3 years ago
Read 2 more answers
Factor the trinomial. Factor out the GCF first.<br> 5x^2y - 30xy^2 - 35y^3
anzhelika [568]

Answer: 5x^2y - 30xy^2 - 35y^3=5y(x+y)(x-7y)

Step-by-step explanation:

GCF = Greatest common factor.

For example: 6 is the GCF of 12 and 18.

The given expression: 5x^2y - 30xy^2 - 35y^3

It can be written as

5x^2y - (5\times6)x( y\times y) - (5\times7)(y^2\times y)

Taking out common factor  5y , we get

5y(x^2-6xy-7y^2)\\\\ =5y(x^2+xy-7xy-7y^2)\  \ [\because-6xy=xy-7xy]\\\\=5y(x(x+y)-7y(x+y))\\\\= 5y((x+y)(x-7y))\\\\=5y(x+y)(x-7y)

Hence, 5x^2y - 30xy^2 - 35y^3=5y(x+y)(x-7y)

3 0
3 years ago
Other questions:
  • A television with a 5:4 screen shows an image with a ratio of 25:12 which creates a letter boxed image. What percent of the scre
    5·1 answer
  • What is 12/99 as a decimal?
    14·2 answers
  • If M = 6, then what is 4m - 17?
    12·2 answers
  • PLATO! 17 POINTS! WILL MARK BRAINLIEST!
    14·1 answer
  • What is the given function rule f(x)=x^2-5x=1 is the output of f(-3)
    5·2 answers
  • 2) Find the remainder when x3 + x2 - 20 is divided by
    15·1 answer
  • find an equation of the line that satisfies the given condition. write the equation in y=mx+b form. passes through points (1,2)
    11·1 answer
  • Order at the end and help pls ​
    11·1 answer
  • A student was asked to simplify the expression 2(x+3)+(4x−8)−7x .
    13·1 answer
  • Six cards with the numbers 1 to 6 are randomly placed face down on a table. what is the probability that a card with a 4 is chos
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!