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
IRISSAK [1]
3 years ago
10

14d + 21 and 7(2d + 3)

Mathematics
2 answers:
Gennadij [26K]3 years ago
3 0

Answer:

the answer is 28d + 42

Step-by-step explanation:

multiply what's on the brackets them add

Vlada [557]3 years ago
3 0
Answer:
D can be any value

Explanation:
First, we apply the distributive property to 7(2d+3) by multiplying 7 by both values (this is to open up the parentheses)

7(2d+3)
=14d+21

Now, we learn that 7(2d+3)=14d+21, which is the same thing as 14d+21=14d+21.

14d+21=14d+21
14d-14d=21-21
0=0

Because we’ve reached 0=0, which is a true statement, and not a value for d, d can be any value and the statements will be true.

I hope this helps!
You might be interested in
A rectangle’s length is 5 inches more than twice its width. Its area is 50 square inches. Which equation can be used to find its
Arte-miy333 [17]

Answer:

w(2w+5) = 50

Step-by-step explanation:

length x width = 50

length = 2w+5

4 0
3 years ago
Read 2 more answers
What is the volume of the regular pyramid?
ad-work [718]

Answer:

C

Step-by-step explanation:

The volume of the regular pyramid is V=\dfrac{1}{3}A_{base}H.

The base of given pyramid is regular hexagon with side 12 cm. The are of this hexagon consistsof area of 6 equilateral triangles and is equal to

A_{base}=6\cdot \dfrac{1}{2}\cdot 12\cdot 10.4=374.4\ cm^2.

Hence, the volume of the pyramid is

V=\dfrac{1}{3}\cdot 374.4\cdot 36=4,492.8\ cm^3.

7 0
3 years ago
Friday’s high temperature was −1°C. The low temperature was −5°C. What was the difference between the high and low temperatures?
Digiron [165]

Answer:

-4C

Step-by-step explanation:

-1 (-4) = -5

4 0
3 years ago
What is the answer? I am so lost- thanks for any help given.
aev [14]

Answer:

i think that the answer is 13 meters

Step-by-step explanation:

7 0
3 years ago
What is the exact area of the following circle?
pychu [463]

Answer:

56.25 pi  cm^2

Step-by-step explanation:

To find the area of the circle,

we use the formula

A = pi r^2, where r is the radius

We know the diameter is 15 so we can find the  radius from

r = d/2  where d is the diameter

r = 15/2

A = pi ( 15/2) ^2

A = pi ( 225/4)

A = 56.25 pi  cm^2

3 0
2 years ago
Read 2 more answers
Other questions:
  • Whats the answer to −2 ⋅ (−3)3. i cant do this!
    14·2 answers
  • The angles below are supplementary. What is the value of x? A pair of supplementary angles is shown. One angle measures 4x + 20,
    5·2 answers
  • Need the answers for both #1 and #2 plz
    10·1 answer
  • Graph each equation x/3 -y/6 = 1
    7·1 answer
  • A sphere with a radius of 15 cm has the same volume as a cylinder with a radius of 5 cm. What is the height of the cylinder?
    10·1 answer
  • Can someone help me out please ?
    9·2 answers
  • wilbur has sold 100, 42,87, and 66 appliances in the last four months, respectively. How many appliances will he need to sell th
    5·1 answer
  • An equilateral triangle has a side length of 3x^2 - 4x + 9. What is the perimeter of the triangle?
    11·1 answer
  • Write an equivalent expression using the distributive property: 6(x-8)
    10·1 answer
  • What is the value of x?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!